Supplemental Restraint System - Lancer Evolution Mitsubishi Lancer Evolution IX

GENERAL DESCRIPTION

The Supplemental Restraint System (SRS) and seat belt with pre-tensioner is designed to supplement the driver's and passenger's (front) seat belts to help reduce the risk or severity of injury to the driver and front passenger by activating and deploying both front air bags in certain frontal collisions.

The SRS consist of driver's and passenger's (front) air bag modules, SRS air bag control unit

(SRS-ECU), front impact sensors, SRS warning light, and clock spring. Air bags are located in the center of the steering wheel and above the glove box. Each air bag is made up of a folded air bag and an inflator unit. The SRS-ECU under the floor console monitors the system and has a safing G-sensor and an analog G-sensor. The warning light on the instrument panel indicates the operational status of the SRS. The clock spring is installed in the steering column. The seat belt pre-tensioner is built into the driver's and passenger's (front) seat belt retractor. The front impact sensor is assembled on the headlight support panel to monitor collision upon frontal impact.

Only authorized service personnel should do work on or around the SRS components. Those service personnel should read this article carefully before starting any such work.

ON-BOARD DIAGNOSTIC/SRS WARNING LIGHT FUNCTION

The diagnosis unit monitors the SRS system and stores data concerning any detected faults in the system. When the ignition switch is in "ON" or "START" position, the SRS warning light should illuminate for about seven seconds and then turn "OFF". That indicates that the SRS system is in operational order. If the SRS warning light does any of the following, immediate inspection by an authorized dealer is needed.

Scheme 338

1. The SRS warning light does not illuminate as described above.
2. The SRS warning light stays on for more than seven seconds.
3. The SRS warning light illuminates while driving.

If a vehicle's SRS warning light is in any of these three conditions when brought in for inspection, the SRS system must be inspected, diagnosed and serviced in accordance with this article.

Scheme 339

Note. This construction diagram shows the general view of the SRS components. For details, refer to " SCHEMATIC ", " CONFIGURATION DIAGRAMS " and " CIRCUIT DIAGRAM " .

WARNING/CAUTION LABELS

A number of caution labels related to the SRS are found in the vehicle, as shown in the following illustration. Follow label instructions when servicing SRS. The label F is not to be removed except by owner. If the other labels are dirty or damaged, replace them.

Scheme 340

LABEL CONTENTS CHART LABEL CONTENTS A WARNING: SRS BEFORE REPLACING STEERING WHEEL, READ SERVICE MANUAL. THIS AIR BAG MODULE CANNOT BE REPAIRED. DO NOT DISASSEMBLE OR TAMPER. B CAUTION: SRS CLOCK SPRING THIS IS NOT A REPAIRABLE PART. IF DEFECTIVE REPLACE ENTIRE UNIT ACCORDING TO THE SERVICE MANUAL INSTRUCTIONS. TO RE-CENTER: ROTATE CLOCKWISE UNTIL TIGHT. THEN ROTATE IN OPPOSITE DIRECTION ROUGHLY 3/4 TURNS AND ALIGN ARROWS >><<. C WARNING FLAMMABLE/EXPLOSIVE SRS AIR BAG MODULE TO AVOID SERIOUS INJURY: DO NOT REPAIR, DISASSEMBLE OR TAMPER. AVOID CONTACT WITH FLAME OR ELECTRICITY. DO NOT DIAGNOSIS/USE NO TEST EQUIPMENT OR PROBES. STORE BELOW 200° F (93° C). BEFORE DOING ANY WORK INVOLVING MODULE, READ SERVICE MANUAL FOR IMPORTANT FURTHER DATA. D CAUTION: DO NOT DISASSEMBLE OR DROP IF DEFECT REFER TO SERVICE MANUAL. E WARNING: DEATH or SERIOUS INJURY can occur Children 12 and under can be killed by the air bag. The BACK SEAT is the SAFEST place for children. NEVER put a rear-facing child seat in the front. Sit as far back as possible from the air bag. ALWAYS use SEAT BELTS and CHILD RESTRAINTS. F WARNING: Children can be KILLED or INJURED by Passenger air bag. The back seat is the safest place for children 12 and under. Make sure all children use seat belts or child seat. Not to be removed except by owner. G DANGER: SEAT BELT PRETENSIONER CAUTION: THIS ASSEMBLY CONTAINS AN EXPLOSIVE INITIATOR FLAMMABLE MATERIAL TO PREVENT PERSONAL INJURY DO NOT IMPACT, DISMANTLE OR INSTALL IT INTO ANOTHER VEHICLE. SERVICE OR DISPOSE OF IT AS DIRECTED IN THE REPAIR MANUAL. H CAUTION: DO NOT DISASSEMBLE OR DROP. I WARNING: THIS VEHICLE HAS AN AIR BAG SYSTEM. REFER TO SERVICE MANUAL BEFORE SERVICING OR DISASSEMBLING UNDERHOOD COMPONENTS. READ THE "SRS" SECTION OF MANUAL FOR IMPORTANT INSTRUCTIONS. IMPROPER SERVICE PROCEDURES CAN RESULT IN THE AIR BAG FIRING OR BECOMING INOPERATIVE, POSSIBLY LEADING TO INJURY

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SRS AIR BAG SPECIAL CONNECTOR

To enhance the system reliability, a connector lock switch is integrated in the SRS-ECU connector, the air bag module connectors, the clock spring connector, the seat belt pretensioner connectors (black connector "A" shown in the illustration below).

Scheme 343

SQUIB CIRCUIT CONNECTOR LOCK SWITCH

The switch is a mechanism that shorts the power supply terminal to the ground terminal automatically in the air bag squib circuit when the connector is disconnected. A "short" spring is integrated inside the connector. This spring prevents static electricity from flowing to the squib by shorting the power supply terminal to the ground terminal (i.e. there is no potential difference between the two terminals).

Scheme 344

WARNING LIGHT CIRCUIT CONNECTOR LOCK SWITCH

The switch is a mechanism that shorts the power supply terminal to the ground terminal automatically in the warning light circuit when the connector is disconnected. Its structure is similar to the squib circuit connector shorting mechanism.

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CIRCUIT DIAGRAM

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Note. The illustration above shows the front impact sensor (LH). The position of the side impact sensor (RH) is symmetrical to this.

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SRS-ECU TERMINAL SPECIFICATION

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INTRODUCTION TO DIAGNOSIS

The SRS system is controlled by the SRS-ECU. The SRS-ECU judges how severe a collision is by detecting signals from the left and right front impact sensors, front air bag analog G-sensor and front air bag safing G-sensor. If the impact is over a predetermined level, the SRS-ECU outputs an ignition signal. At this time, if the safing G-sensor is on, the SRS air bag will inflate. The SRS warning light in the combination meter alerts a malfunction of the SRS system. If the following symptoms occur even when the vehicle has not been in a collision, there may be a malfunction in the SRS system.

1. The SRS warning light does not go off within approximately seven seconds after the ignition switch has been turned "ON".
2. The SRS warning light does not illuminate when the ignition switch is turned "ON".

Refer to the Post-collision Diagnosis when inspecting and servicing the vehicle that has been in a collision (Refer to POST-COLLISION DIAGNOSIS ).

TROUBLESHOOTING STRATEGY

Use these steps to plan your diagnostic strategy. If you follow them carefully, you will be sure that you have exhausted all of the possible ways to find a SRS fault.

1. Gather information about the problem from the customer.
2. Verify that the condition described by the customer exists.
3. Check the vehicle for any SRS diagnostic trouble codes (SRS DTC).
4. If you cannot verify the condition but there are no SRS DTCs, the malfunction is intermittent. Refer to «HOW TO COPE WITH INTERMITTENT MALFUNCTIONS»(/mitsubishi/lancer-evolution/ix-2005-2007/remont/hoistjack/#general-lancer-evolution__how-to-cope-with-intermittent-malfunctions) .
5. If there is a SRS DTC, record the code number, then erase the code from vehicle memory using scan tool MB991958.
6. Recreate the SRS DTC set conditions to see if the same SRS DTC will be set again. If the same SRS DTC is set again, follow the Inspection Chart for DTC and find the fault. If you cannot get the same SRS DTC to be set again, the malfunction is intermittent. Refer to «HOW TO COPE WITH INTERMITTENT MALFUNCTIONS»(/mitsubishi/lancer-evolution/ix-2005-2007/remont/hoistjack/#general-lancer-evolution__how-to-cope-with-intermittent-malfunctions) .

HOW TO CONNECT THE SCAN TOOL

Required Special Tools

1. MB991958: Scan Tool (M.U.T.-III Sub Assembly) MB991824: Vehicle Communication Interface (V.C.I.) MB991827: M.U.T.-III USB Cable MB991911: M.U.T.-III Main Harness B

Scheme 354

1. Ensure that the ignition switch is at the "LOCK" (OFF) position.
2. Start up the personal computer.
3. Connect special tool MB991827 to special tool MB991824 and the personal computer.
4. Connect special tool MB991911 to special tool MB991824.
5. Connect special tool MB991911 to the data link connector.
6. Turn the power switch of special tool MB991824 to the "ON" position. NOTE: When special tool MB991824 is energized, special tool MB991824 indicator light will be illuminated in a green color.
7. Start the M.U.T.-III system on the personal computer. NOTE: Disconnecting scan tool MB991958 is the reverse of the connecting sequence, making sure that the ignition switch is at the "LOCK" (OFF) position.

HOW TO READ AND ERASE DIAGNOSTIC TROUBLE CODES

Required Special Tools

1. MB991958: Scan Tool (M.U.T.-III Sub Assembly) MB991824: V.C.I. MB991827: M.U.T.-III USB Cable MB991911: M.U.T.-III Main Harness B

Note. If the battery voltage is low, diagnostic trouble codes will not be set. Check the battery if scan tool MB991958 does not display.

1. Connect scan tool MB991958 to the data link connector.
2. Turn the ignition switch to the "ON" position.
3. Select "Interactive Diagnosis" from the start-up screen.
4. Select "System select."
5. Choose "SRS-AIR BAG" from the "BODY" tab.
6. Select "MITSUBISHI."
7. Select "Diagnostic Trouble Code."
8. If a DTC is set, it is shown.
9. Choose "Erase DTCs" to erase the DTC.

Scheme 355

1. Check that the SRS warning light illuminates when the ignition switch is in the "ON" position.
2. Check that it illuminates for approximately seven seconds and then goes out.
3. If not, check for DTC.

DIAGNOSTIC TROUBLE CODE CHART

Inspect according to the inspection chart that is appropriate for the DTC.

DIAGNOSTIC TROUBLE CODE CHART

TROUBLE SYMPTOM CHART

TROUBLE SYMPTOM CHART

Scheme 356

CIRCUIT OPERATION

1. When the left and right front impact sensors detect a collision, the switches inside the sensors turn ON.
2. SRS-ECU judges how severe a collision is by detecting signals from the front impact sensors and the front air bag analog G-sensor. If the impact is over a predetermined level, the SRS-ECU sends an ignition signal. At this time, if the front air bag safing G-sensor is on, the SRS air bag will inflate.

DTC SET CONDITIONS

These DTCs are set if these are abnormal resistance between the input terminals of the front impact sensors.

The most likely causes for these codes to be set are shown in the table below

TROUBLE SYMPTOM CHART

TROUBLESHOOTING HINTS

1. Damaged harness wires and connectors
2. Front impact sensor failed
3. Malfunction of the SRS-ECU

DIAGNOSIS

Required Special Tools

1. MB991958: Scan Tool (M.U.T.-III Sub Assembly) MB991824: V.C.I. MB991827: M.U.T.-III USB Cable MB991911: M.U.T.-III Main Harness B

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1. STEP 1. Check the front impact sensor. Refer to «>> B << FRONT IMPACT SENSOR INSTALLATION»(/mitsubishi/lancer-evolution/ix-2005-2007/remont/airbag/#supplemental-restraint-system-lancer-evolution__b-front-impact-sensor) . Q: Is the check result satisfactory? YES: Go to Step 2. NO: Replace the front impact sensor (Refer to «FRONT IMPACT SENSORS»(/mitsubishi/lancer-evolution/ix-2005-2007/remont/airbag/#supplemental-restraint-system-lancer-evolution) ).
2. STEP 2. Measure the resistance and voltage at SRS-ECU connector C-12. Disconnect SRS-ECU connector C-12. CAUTION: Do not insert a test probe into the terminal from its front side directly as the connector contact pressure may be weakened. Take the measurements below at harness-side connector C-12. Resistance between terminals 1 and 2 as well as 3 and 4. NG: 2 ohms or less (short circuit) or 2 Mohms or more (open circuit) Continuity between terminals 1, 2, 3, 4 and body ground OK: No continuity Voltage between terminals 1, 2, 3, 4 and body ground OK: 0 V Q: Is the check result satisfactory? YES: Go to Step 4 . NO: Go to Step 3.
3. STEP 3. Check the wiring harness between the right front impact sensor connector A-37 (terminals 1 and 2) and SRS-ECU connector C-12 (terminals 1 and 2) as well as between left front impact sensor connector A-33 (terminals 1 and 2) and SRS-ECU connector C-12 (terminals 3 and 4). NOTE: Prior to the wiring harness inspection, check intermediate connectors C-111 and C-134, and repair if necessary. Check the front impact sensor output line for open or short circuit. Q: Is the check result satisfactory? YES: Go to Step 4. NO: Repair the wiring harness.
4. STEP 4. Recheck for diagnostic trouble code. Check again if the DTC is set. Erase the DTC. Turn the ignition switch to the "ON" position. Check if the DTC is set. Turn the ignition switch to the "LOCK" (OFF) position. Q: Is DTC 1A, 1B, 1C, 1D, 2A, 2B, 2C or 2D set? YES: Replace the SRS-ECU (Refer to «SRS CONTROL UNIT (SRS-ECU)»(/mitsubishi/lancer-evolution/ix-2005-2007/remont/airbag/#supplemental-restraint-system-lancer-evolution) ). NO: The procedure is complete (If no malfunctions are found in all steps, an intermittent malfunction is suspected. Refer to «HOW TO COPE WITH INTERMITTENT MALFUNCTION»(/mitsubishi/lancer-evolution/ix-2005-2007/remont/hoistjack/#general-lancer-evolution__how-to-cope-with-intermittent-malfunctions) ).

1. These DTC are set when a fault is detected in the SRS-ECU. The most likely causes for this code to be set are shown in the table below

1. Malfunction of the SRS-ECU

TROUBLE SYMPTOM CHART

Replace the SRS-ECU (Refer to SRS CONTROL UNIT (SRS-ECU) ).

Scheme 366

1. The SRS-ECU judges how severe a collision is by detecting signals from the front air bag analog G-sensor. If the impact is over a predetermined level, the SRS-ECU outputs an ignition signal. At this time, if the front air bag safing G-sensor is on, the SRS air bag will inflate.
2. The ignition signal is input to the air bag module via the clock spring to inflate the air bag.

This DTC is set if there is abnormal resistance between the input terminals of the driver's air bag module (squib). The most likely causes for this code to be set are the following

1. Short circuit in driver's air bag module (squib) or harness
2. Short circuit in the clock spring

However, if no DTC reset, the SRS warning light will be switched off (DTC will be retained).

1. Improper engaged connector or defective short spring*
2. Short circuit in the clock spring
3. Short circuit between the driver's air bag module (squib) circuit terminals
4. Damaged connector(s)
5. Malfunction of the SRS-ECU

Note. *: The squib circuit connectors integrate a "short" spring (which prevents the air bag from deploying unintentionally due to static electricity by shorting the positive wire to the ground wire in the squib circuit when the connectors are disconnected) (Refer to GENERAL DESCRIPTION ). Therefore, if connector C-12, C-205 or C-201 is damaged or improperly engaged, the short spring may not be released when the connector is connected.

Required Special Tools

1. MB991958: Scan Tool (M.U.T.-III Sub Assembly) MB991824: V.C.I. MB991827: M.U.T.-III USB Cable MB991911: M.U.T.-III Main Harness B
2. MB991865: Dummy resister
3. MB991866: Resister harness

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1. STEP 1. Using scan tool MB991958, read the diagnostic trouble code. CAUTION: To prevent damage to scan tool MB991958, always turn the ignition switch to the "LOCK" (OFF) position before connecting or disconnecting scan tool MB991958. Turn the ignition switch to the "ON" position. Check if the DTC is set. Turn the ignition switch to the "LOOK" (OFF) position. Q: Is DTC 34 set? YES: Go to Step 2. NO: Go to Step 3 .
2. STEP 2. Check SRS-ECU connector C-12. Q: Is the connector correctly engaged? YES: Go to Step 3. NO: Engage the connector correctly. Then go to Step 8 .
3. STEP 3. Check SRS-ECU connector C-12, clock spring connector C-205 and driver's air bag module connector C-201 (Using scan tool MB991958, read the diagnostic trouble code). Disconnect the negative battery terminal. Disconnect connectors C-12, C-205 and C-201, and then reconnect them. Connect the negative battery terminal. Erase the diagnostic trouble code memory, and check the diagnostic trouble code. Q: Is DTC 21 set? YES: Go to Step 4. NO: The procedure is complete. It is assumed that DTC 21 set as connector or C-12, C-205 or C-201 was engaged improperly.
4. STEP 4. Check the driver's air bag module (Using scan tool MB991958, read the diagnostic trouble code). Disconnect the negative battery terminal. By sliding the A section (in the figure) of driver's air bag module connector C-201 in the arrow direction, disconnect the connector. Connect special tool MB991865 to special tool MB991866. CAUTION: Do not insert a test probe into the terminal from its front side directly, as the connector contact pressure may be weakened. Insert special tool MB991866 into clock spring side air bag module connector C-201 by backprobing. Connect the negative battery terminal. Erase the diagnostic trouble code memory, and check the diagnostic trouble code. Q: Is DTC 21 set? YES: Go to Step 5. NO: Replace the driver's air bag module (Refer to «AIR BAG MODULE(S) AND CLOCK SPRING»(/mitsubishi/lancer-evolution/ix-2005-2007/remont/airbag/#supplemental-restraint-system-lancer-evolution) ). Then go to Step 8 .
5. STEP 5. Check the clock spring (Using scan tool MB991958, read the diagnostic trouble code). Disconnect the negative battery terminal. Disconnect the clock spring connector C-205. Connect special tool MB991865 to special tool MB991866. CAUTION: Do not insert a test probe into the terminal from its front side directly, as the connector contact pressure may be weakened. Insert special tool MB991866 into clock spring harness side connector C-205 (terminal No.3 and 4) by backprobing. Connect the negative battery terminal. Erase the diagnostic trouble code memory, and check the diagnostic trouble code. Q: Is DTC 21 set? YES: Go to Step 6. NO: Replace the clock spring (Refer to «AIR BAG MODULE(S) AND CLOCK SPRING»(/mitsubishi/lancer-evolution/ix-2005-2007/remont/airbag/#supplemental-restraint-system-lancer-evolution) ). Then go to Step 8 .
6. STEP 6. Check the driver's air bag module circuit at the SRS-ECU connector C-12. Disconnect SRS-ECU connector C-12. WARNING: To prevent the air bag from deploying unintentionally, disconnect the clock spring connector C-205 to short the squib circuit. Disconnect the clock spring connector C-205. CAUTION: Insert an insulator such as a cable tie to a depth of 4mm (0.16 inch) or more, otherwise the short spring will not be released. Insert a cable tie [3 mm (0.12 inch) wide, 0.5 mm (0.02 inch) thick] between terminals 11, 12 and the short spring to release the short spring. CAUTION: Do not insert a test probe into the terminal from its front side directly, as the connector contact pressure may be weakened. Check for continuity between C-12 harness connector terminals 11 and 12. It should be open circuit. Q: Does continuity exist? YES: Go to Step 7. NO: Erase the diagnostic trouble code memory, and check the diagnostic trouble code. If DTC 21 set, replace the SRS-ECU (Refer to «SRS CONTROL UNIT (SRS-ECU)»(/mitsubishi/lancer-evolution/ix-2005-2007/remont/airbag/#supplemental-restraint-system-lancer-evolution) ). Then go to Step 8 .
7. STEP 7. Check the harness for short circuit between SRS-ECU connector C-12 (terminal No.11 and 12) and clock spring connector C-205 (terminal No.3 and 4). Q: Are harness wires between SRS-ECU connector C-12 (terminal No.11 and 12) and clock spring connector C-205 (terminal No.3 and 4) in good condition? YES: Go to Step 8. NO: Repair the harness wires between SRS-ECU connector C-12 and clock spring connector C-205. Then go to Step 8.
8. STEP 8. Recheck for diagnostic trouble code (Using scan tool MB991958, read the diagnostic trouble code). Check again if the DTC is set. Erase the DTC. Turn the ignition switch to the "ON" position. Check if the DTC is set. Turn the ignition switch to the "LOCK" (OFF) position. Q: Is DTC 21 set? YES: Return to Step 1 . NO: The procedure is complete (If no malfunctions are found in all steps, an intermittent malfunction is suspected. Refer to «HOW TO COPE WITH INTERMITTENT MALFUNCTION»(/mitsubishi/lancer-evolution/ix-2005-2007/remont/hoistjack/#general-lancer-evolution__how-to-cope-with-intermittent-malfunctions) ).

Scheme 375

1. The SRS-ECU judges how severe a collision is by detecting signals from the front air bag analog G-sensor. If the impact is over a predetermined level, the SRS-ECU outputs an ignition signal. At this time, if the front air bag safing G-sensor is on, the SRS air bag will inflate.
2. The ignition signal is input to the air bag module via the clock spring to inflate the air bag.

This DTC is set if there is abnormal resistance between the input terminals of the driver's air bag module (squib). The most likely causes for this code to be set are the following

1. Open circuit in the driver's air bag module (squib) or harness
2. Open circuit in the clock spring
3. Malfunction of connector contact

However, if no DTC reset, the SRS warning light will be switched off (DTC will be retained).

1. Open circuit in the clock spring
2. Open circuit due to improper neutral position of the clock spring
3. Open circuit in the driver's air bag module (squib) circuit
4. Disengaged driver's air bag module (squib) connector
5. Improper connector contact
6. Malfunction of the SRS-ECU

Required Special Tools

1. MB991958: Scan Tool (M.U.T.-III Sub Assembly) MB991824: V.C.I. MB991827: M.U.T.-III USB Cable MB991911: M.U.T.-III Main Harness B
2. MB991865: Dummy resister
3. MB991866: Resister harness

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1. STEP 1. Check the driver's air bag module (Using scan tool MB991958, read the diagnostic trouble code). Disconnect the negative battery terminal. By sliding the A section (in the figure) of driver's air bag module connector C-201 in the arrow direction, disconnect the connector. Connect special tool MB991865 to special tool MB991866. CAUTION: Do not insert a test probe into the terminal from its front side directly, as the connector contact pressure may be weakened. Insert special tool MB991866 into clock spring side air bag module connector C-201 by backprobing. Connect the negative battery terminal. Erase the diagnosis trouble code memory, and check the diagnosis trouble code. Q: Is DTC 22 set? YES: Go to Step 2. NO: Replace the driver's air bag module (Refer to «AIR BAG MODULE(S) AND CLOCK SPRING»(/mitsubishi/lancer-evolution/ix-2005-2007/remont/airbag/#supplemental-restraint-system-lancer-evolution) ). Then go to Step 4 .
2. STEP 2. Check the clock spring (Using scan tool MB991958, read the diagnostic trouble code). Disconnect the negative battery terminal. Disconnect the clock spring connector C-205. Connect special tool MB991865 to special tool MB991866. CAUTION: Do not insert a test probe into the terminal from its front side directly, as the connector contact pressure may be weakened. Insert special tool MB991866 into clock spring harness side connector C-205 by backprobing. Connect the negative battery terminal. Erase the diagnostic trouble code memory, and check the diagnostic trouble code. Q: Is DTC 22 set? YES: Go to Step 3. NO: Replace the clock spring (Refer to «AIR BAG MODULE(S) AND CLOCK SPRING»(/mitsubishi/lancer-evolution/ix-2005-2007/remont/airbag/#supplemental-restraint-system-lancer-evolution) ). Then go to Step 4 .
3. STEP 3. Check the harness between the SRS-ECU connector C-12 (terminal No.11 and 12) and the clock spring connector C-205 (terminal No.3 and 4) for open circuit. Disconnect SRS-ECU connector C-12 and clock spring connector C-205. CAUTION: Do not insert a test probe into the terminal from its front side directly, as the connector contact pressure may be weakened. Check for continuity between the following terminals. It should be less than 2 ohms. SRS-ECU connector C-12 (terminal No.11) and the clock spring connector C-205 (terminal No.3) SRS-ECU connector C-12 (terminal No.12) and the clock spring connector C-205 (terminal No.4) Q: Does continuity exist? YES: Erase the diagnostic trouble code memory, and check the diagnostic trouble code. If DTC 22 set, replace the SRS-ECU (Refer to «SRS CONTROL UNIT (SRS-ECU)»(/mitsubishi/lancer-evolution/ix-2005-2007/remont/airbag/#supplemental-restraint-system-lancer-evolution) ). Then go to Step 4. NO: Repair the harness wires between SRS-ECU connector C-12 and clock spring connector C-205. Then go to Step 4.
4. STEP 4. Recheck for diagnostic trouble code. Check again if the DTC is set. Erase the DTC. Turn the ignition switch to the "ON" position. Check if the DTC is set. Turn the ignition switch to the "LOCK" (OFF) position. Q: Is DTC 22 set? YES: Return to Step 1 . NO: The procedure is complete (If no malfunctions are found in all steps, an intermittent malfunction is suspected. Refer to «HOW TO COPE WITH INTERMITTENT MALFUNCTION»(/mitsubishi/lancer-evolution/ix-2005-2007/remont/hoistjack/#general-lancer-evolution__how-to-cope-with-intermittent-malfunctions) ).

Scheme 381

1. The SRS-ECU judges how severe a collision is by detecting signals from the front air bag analog G-sensor. If the impact is over a predetermined level, the SRS-ECU outputs an ignition signal. At this time, if the front air bag safing G-sensor is on, the SRS air bag will inflate.
2. The ignition signal is input to the air bag module to inflate the air bag.

This DTC is set if there is abnormal resistance between the input terminals of the passenger's (front) air bag module (squib). However, if no DTC reset, the SRS warning light will be switched off (DTC will be retained).

1. Improper engaged connector or defective short spring*
2. Short circuit between the passenger's (front) air bag module (squib) circuit terminals
3. Damaged connector(s)
4. Malfunction of the SRS-ECU

Note. *: The squib circuit connectors integrate a "short" spring (which prevents the air bag from deploying unintentionally due to static electricity by shorting the positive wire to the ground wire in the squib circuit when the connectors are disconnected) (Refer to GENERAL DESCRIPTION ). Therefore, if connector C-12 or C-106 is damaged or improperly engaged, the short spring may not be released when the connector is connected.

Required Special Tools

1. MB991958: Scan Tool (M.U.T.-III Sub Assembly) MB991824: V.C.I. MB991827: M.U.T.-III USB Cable MB991911: M.U.T.-III Main Harness B
2. MB991865: Dummy resister
3. MB991866: Resister harness

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1. STEP 1. Using scan tool MB991958, read the diagnostic trouble code. CAUTION: To prevent damage to scan tool MB991958, always turn the ignition switch to the "LOCK" (OFF) position before connecting or disconnecting scan tool MB991958. Turn the ignition switch to the "ON" position. Check if the DTC is set. Turn the ignition switch to the "LOOK (OFF)" position. Q: Is DTC 34 set? YES: Go to Step 2. NO: Go to Step 3 .
2. STEP 2. Check SRS-ECU connector C-12. Q: Is the connector correctly engaged? YES: Go to Step 3. NO: Engage the connector correctly. Then go to Step 7 .
3. STEP 3. Check SRS-ECU connector C-12 and passenger's (front) air bag module connector C-106 (Using scan tool MB991958, read the diagnostic trouble code). Disconnect the negative battery terminal. Disconnect connectors C-12 and C-106, and then reconnect them. Connect the negative battery terminal. Erase the diagnostic trouble code memory, and check the diagnostic trouble code. Q: Is DTC 24 set? YES: Go to Step 4. NO: The procedure is complete. It is assumed that DTC 24 set as connector C-12 or C-106 was engaged improperly.
4. STEP 4. Check the passenger's (front) air bag module (Using scan tool MB991958, read the diagnostic trouble code). Disconnect the negative battery terminal. Disconnect passenger's (front) air bag module connector C-106. Connect special tool MB991865 to special tool MB991866. CAUTION: Do not insert a test probe into the terminal from its front side directly, as the connector contact pressure may be weakened. Disconnect the passenger's (front) air bag module connector C-106, and insert special tool MB991866 into the harness connector by backprobing. Connect the negative battery terminal. Erase the diagnostic trouble code memory, and check the diagnostic trouble code. Q: Is DTC 24 set? YES: Go to Step 5. NO: Replace the passenger's (front) air bag module (Refer to «AIR BAG MODULE(S) AND CLOCK SPRING»(/mitsubishi/lancer-evolution/ix-2005-2007/remont/airbag/#supplemental-restraint-system-lancer-evolution) ). Then go to Step 7 .
5. STEP 5. Check the passenger's (front) air bag module circuit at SRS-ECU connector C-12. Disconnect SRS-ECU connector C-12. WARNING: To prevent the (front) air bag from deploying unintentionally, disconnect the passenger's (front) air bag module connector C-106 to short the squib circuit. Disconnect the passenger's (front) air bag module connector C-106. CAUTION: Insert an insulator such as a cable tie to a depth of 4mm (0.16 inch) or more, otherwise the short spring will not be released. Insert a cable tie [3 mm (0.12 inch) wide, 0.5 mm (0.02 inch) thick] between terminals 9, 10 and the short spring to release the short spring. CAUTION: Do not insert a test probe into the terminal from its front side directly, as the connector contact pressure may be weakened. Check for continuity between C-12 harness connector terminals 9 and 10. It should be open circuit. Q: Does continuity exist? YES: Go to Step 6. NO: Erase the diagnostic trouble code memory, and check the diagnostic trouble code. If DTC 24 set, replace the SRS-ECU (Refer to «SRS CONTROL UNIT (SRS-ECU)»(/mitsubishi/lancer-evolution/ix-2005-2007/remont/airbag/#supplemental-restraint-system-lancer-evolution) ). Then go to Step 7 .
6. STEP 6. Check the harness for short circuit between SRS-ECU connector C-12 (terminal No.9 and 10) and passenger's (front) air bag module connector C-106 (terminal No.1 and 2). Q: Are harness wires between SRS-ECU connector C-12 (terminal No.9 and 10) and passenger's (front) air bag module connector C-106 (terminal No.1 and 2) in good condition? YES: Go to Step 7. NO: Repair the harness wires between SRS-ECU connector C-12 and passenger's (front) air bag module connector C-106. Then go to Step 7.
7. STEP 7. Recheck for diagnostic trouble code. Check again if the DTC is set. Erase the DTC. Turn the ignition switch to the "ON" position. Check if the DTC is set. Turn the ignition switch to the "LOCK" (OFF) position. Q: Is DTC 24 set? YES: Return to Step 1 . NO: The procedure is complete (If no malfunctions are found in all steps, an intermittent malfunction is suspected. Refer to «HOW TO COPE WITH INTERMITTENT MALFUNCTION»(/mitsubishi/lancer-evolution/ix-2005-2007/remont/hoistjack/#general-lancer-evolution__how-to-cope-with-intermittent-malfunctions) ).

Scheme 389

1. The SRS-ECU judges how severe a collision is by detecting signals from the front air bag analog G-sensor. If the impact is over a predetermined level, the SRS-ECU outputs an ignition signal. At this time, if the front air bag safing G-sensor is on, the SRS air bag will inflate.
2. The ignition signal is input to the air bag module to inflate the air bag.

This DTC is set if there is abnormal resistance between the input terminals of the passenger's (front) air bag module (squib). However, if no DTC reset, the SRS warning light will be switched off (DTC will be retained).

1. Open circuit in the passenger's (front) air bag module (squib) circuit
2. Improper connector contact
3. Malfunction of the SRS-ECU

Required Special Tools

1. MB991958: Scan Tool (M.U.T.-III Sub Assembly) MB991824: V.C.I. MB991827: M.U.T.-III USB Cable MB991911: M.U.T.-III Main Harness B
2. MB991865: Dummy resister
3. MB991866: Resister harness

Scheme 390

Scheme 391

Scheme 392

Scheme 393

1. STEP 1. Check the passenger's (front) air bag module (Using scan tool MB991958, read the diagnostic trouble code). Disconnect the negative battery terminal. Disconnect passenger's (front) air bag module connector C-106. Connect special tool MB991865 to special tool MB991866. CAUTION: Do not insert a test probe into the terminal from its front side directly, as the connector contact pressure may be weakened. Disconnect the passenger's (front) air bag module connector C-106, and insert special tool MB991866 into the harness connector by backprobing. Connect the negative battery terminal. Erase the diagnostic trouble code memory, and check the diagnostic trouble code. Q: Is DTC 25 set? YES: Go to Step 2. NO: Replace the passenger's (front) air bag module (Refer to «AIR BAG MODULE(S) AND CLOCK SPRING»(/mitsubishi/lancer-evolution/ix-2005-2007/remont/airbag/#supplemental-restraint-system-lancer-evolution) ). Then go to Step 3 .
2. STEP 2. Check the harness for open circuit between SRS-ECU connector C-12 (terminal No.9 and 10) and the passenger's (front) air bag module connector C-106 (terminal No.1 and 2). Disconnect passenger's (front) air bag module connector C-106. Disconnect SRS-ECU connector C-12. CAUTION: Do not insert a test probe into the terminal from its front side directly, as the connector contact pressure may be weakened. Check for continuity between the following terminals. It should be less than 2 ohms. SRS-ECU connector C-12 (terminal No.9) and the passenger's (front) air bag module connector C-106 (terminal No.2) SRS-ECU connector C-12 (terminal No.10) and the passenger's (front) air bag module connector C-106 (terminal No.1) Q: Does continuity exist? YES: Erase the diagnostic trouble code memory, and check the diagnostic trouble code. If DTC 25 set, replace the SRS-ECU (Refer to «SRS CONTROL UNIT (SRS-ECU)»(/mitsubishi/lancer-evolution/ix-2005-2007/remont/airbag/#supplemental-restraint-system-lancer-evolution) ). Then go to Step 3. NO: Repair the harness wires between SRS-ECU connector C-12 and passenger's (front) air bag module connector C-106. Then go to Step 3.
3. STEP 3. Recheck the diagnostic trouble code. Check again if the DTC is set. Erase the DTC. Turn the ignition switch to the "ON" position. Check if the DTC is set. Turn the ignition switch to the "LOCK" (OFF) position. Q: Is DTC 25 set? YES: Return to Step 1 . NO: The procedure is complete (If no malfunctions are found in all steps, an intermittent malfunction is suspected. Refer to «HOW TO COPE WITH INTERMITTENT MALFUNCTION»(/mitsubishi/lancer-evolution/ix-2005-2007/remont/hoistjack/#general-lancer-evolution__how-to-cope-with-intermittent-malfunctions) ).

Scheme 394

The SRS-ECU judges how severe a collision is by detecting signals from the front impact sensors and the front air bag analog G-sensor. If the impact is over a predetermined level, the SRS-ECU outputs an ignition signal. At this time, if the front air bag safing G-sensor is on, the seat belt pre-tensioner will deploy.

This DTC is set if there is abnormal resistance between the input terminals of the driver's seat belt pre-tensioner (squib). However, if no DTC reset, the SRS warning light will be switched off (DTC will be retained).

TROUBLESHOOTING HITS

1. Improper engaged connector or defective short spring*
2. Short circuit between the driver's seat belt pre-tensioner (squib) circuit terminals
3. Damaged connector(s)
4. Malfunction of the SRS-ECU

Note. *: The squib circuit connectors integrate a "short" spring (which prevents the seat belt pre-tensioner from deploying unintentionally due to static electricity by shorting the positive wire to the ground wire in the squib circuit when the connectors are disconnected) (Refer to GENERAL DESCRIPTION ). Therefore, if connector C-13 or D-16 is damaged or improperly engaged, the short spring may not be released when the connector is connected.

Required Special Tools

1. MB991958: Scan Tool (M.U.T.-III Sub Assembly) MB991824: V.C.I. MB991827: M.U.T.-III USB Cable MB991911: M.U.T.-III Main Harness B
2. MB991865: Dummy resister
3. MB991866: Resister harness (For Pre-tensioner)

Scheme 395

Scheme 396

Scheme 397

Scheme 398

Scheme 399

Scheme 400

Scheme 401

Scheme 402

Scheme 403

1. STEP 1. Using scan tool MB991958, read the diagnostic trouble code. CAUTION: To prevent damage to scan tool MB991958, always turn the ignition switch to the "LOCK" (OFF) position before connecting or disconnecting scan tool MB991958. Turn the ignition switch to the "ON" position. Check if the DTC is set. Turn the ignition switch to the "LOOK" (OFF) position. Q: Is DTC 34 set? YES: Go to Step 2. NO: Go to Step 3 .
2. STEP 2. Check the SRS-ECU connector C-13. Q: Is the connector correctly engaged? YES: Go to Step 3. NO: Engage the connector correctly. Then go to Step 7 .
3. STEP 3. Check SRS-ECU connector C-13 and driver's seat belt pre-tensioner connector D-16 (Using scan tool MB991958, read the diagnostic trouble code). Disconnect the negative battery terminal. Disconnect connectors C-13 and D-16, and then reconnect them. For connector D-16, use a flat-tipped screwdriver to unlock the locking button at the harness side connector by withdrawing it toward you in two stages, and then disconnect the connector. Connector the negative battery terminal. Erase the diagnostic trouble code memory, and check the diagnostic trouble code. Q: Is DTC 26 set? YES: Go to Step 4. NO: The procedure is complete. It is assumed that DTC 26 set as connector C-13 or D-16 was engaged improperly.
4. STEP 4. Check the driver's seat belt pre-tensioner (Using scan tool MB991958, read the diagnostic trouble code). Disconnect the negative battery terminal. Disconnect driver's seat belt pre-tensioner connector D-16. Use a flat-tipped screwdriver to unlock the locking button at the harness side connector by withdrawing it toward you in two stages, and then disconnect the connector. Connect special tool MB991865 to special tool MB991884. Connect special tool MB991884 to the D-16 harness connector. Connect the negative battery terminal. Erase diagnostic trouble code memory, and check the diagnostic trouble code. Q: Is DTC 26 set? YES: Go to Step 5. NO: Replace the driver's seat belt with pre-tensioner (Refer to «SEAT BELTS WITH PRE-TENSIONER»(/mitsubishi/lancer-evolution/ix-2005-2007/remont/airbag/#supplemental-restraint-system-lancer-evolution) ). Then go to Step 7 .
5. STEP 5. Check the driver's seat belt pre-tensioner circuit at the SRS-ECU connector C-13. Disconnect SRS-ECU connector C-13. WARNING: To prevent the seat belt pre-tensioner from deploying unintentionally, disconnect the driver's seat belt pre-tensioner connector D-16 to short the squib circuit. Disconnect driver's seat belt pre-tensioner connector D-16. Use a flat-tipped screwdriver to unlock the locking button at the harness side connector by withdrawing it toward you in two stages, and then disconnect the connector. CAUTION: Insert an insulator such as a cable tie to a depth of 4mm (0.16 inch) or more, otherwise the short spring will not be released. Insert a cable tie [3 mm (0.12 inch) wide, 0.5 mm (0.02 inch) thick] between terminals 29, 30 and the short spring to release the short spring. CAUTION: Do not insert a test probe into the terminal from its front side directly, as the connector contact pressure may be weakened. Check for continuity between terminals 29 and 30. It should be open circuit. Q: Does continuity exist? YES: Go to Step 6. NO: Erase the diagnostic trouble code memory, and check the diagnostic trouble code. If DTC 26 sets, replace the SRS-ECU (Refer to «SRS CONTROL UNIT (SRS-ECU)»(/mitsubishi/lancer-evolution/ix-2005-2007/remont/airbag/#supplemental-restraint-system-lancer-evolution) ). Then go to Step 7 .
6. STEP 6. Check the harness for short circuit between SRS-ECU connector C-13 (terminal No.29 and 30) and driver's seat belt pre-tensioner connector D-16 (terminal No.1 and 2). NOTE: After inspecting intermediate connector C-127 inspect the wiring harness. If the intermediate connector C-127 is damaged, repair or replace it. Refer to «HARNESS CONNECTOR INSPECTION»(/mitsubishi/lancer-evolution/ix-2005-2007/remont/body-electrical/#general-electrical-lancer-evolution) . Q: Are harness wires between SRS-ECU connector C-13 (terminal No.29 and 30) and driver's seat belt pre-tensioner connector D-16 (terminal No.1 and 2) in good condition? YES: Go to Step 7. NO: Repair the harness wires between SRS-ECU connector C-13 and driver's seat belt pre-tensioner connector D-16. Then go to Step 7.
7. STEP 7. Recheck for diagnostic trouble code. Check again if the DTC is set. Erase the DTC. Turn the ignition switch to the "ON" position. Check if the DTC is set. Turn the ignition switch to the "LOCK" (OFF) position. Q: Is DTC 26 set? YES: Return to Step 1 . NO: The procedure is complete (If no malfunctions are found in all steps, an intermittent malfunction is suspected. Refer to «HOW TO COPE WITH INTERMITTENT MALFUNCTION»(/mitsubishi/lancer-evolution/ix-2005-2007/remont/hoistjack/#general-lancer-evolution__how-to-cope-with-intermittent-malfunctions) ).

Scheme 404

The SRS-ECU judges how severe a collision is by detecting signals from the front impact sensors and the front air bag analog G-sensor. If the impact is over a predetermined level, the SRS-ECU outputs an ignition signal. At this time, if the front air bag safing G-sensor is on, the seat belt pre-tensioner will deploy.

This DTC is set if there is abnormal resistance between the input terminals of the driver's seat belt pre-tensioner (squib). However, if no DTC reset, the SRS warning light will be switched off (DTC will be retained).

1. Improper connector contact
2. Open circuit in the driver's seat belt pre-tensioner (squib) circuit
3. Malfunction of the SRS-ECU

Required Special Tools

1. MB991958: Scan Tool (M.U.T.-III Sub Assembly) MB991824: V.C.I. MB991827: M.U.T.-III USB Cable MB991911: M.U.T.-III Main Harness B
2. MB991865: Dummy resister
3. MB991866: Resister harness (For Pre-tensioner)

Scheme 405

Scheme 406

Scheme 407

Scheme 408

Scheme 409

1. STEP 1. Check the driver's seat belt pre-tensioner (Using scan tool MB991958, read the diagnostic trouble code). Disconnect the negative battery terminal. Disconnect the driver's seat belt pre-tensioner connector D-16. Use a flat-tipped screwdriver to unlock the locking button at the harness side connector by withdrawing it toward you in two stages, and then disconnect the connector. Connect special tool MB991865 to special tool MB991884. Connect special tool MB991884 to the D-16 harness connector. Connect the negative battery terminal. Erase the diagnostic trouble code memory, and check the diagnostic trouble code. Q: Is DTC 27 set? YES: Go to Step 2. NO: Replace the driver's seat belt with pre-tensioner (Refer to «SEAT BELTS WITH PRE-TENSIONER»(/mitsubishi/lancer-evolution/ix-2005-2007/remont/airbag/#supplemental-restraint-system-lancer-evolution) ). Then go to Step 3 .
2. STEP 2. Check the harness for open circuit between SRS-ECU connector C-13 (terminal No.29 and 30) and the driver's seat belt pre-tensioner connector D-16 (terminal No.1 and 2). Disconnect SRS-ECU connector C-13 and driver's seat belt pre-tensioner connector D-16, and measure at the wiring harness side. For connector D-16, use a flat-tipped screwdriver to unlock the locking button at the harness side connector by withdrawing it toward you in two stages, and then disconnect the connector. Connect D-16 harness connector to special tool MB991884. CAUTION: Do not insert a test probe into the terminal from its front side directly, as the connector contact pressure may be weakened. Check for continuity between the following terminals. It should be less than 2 ohms. SRS-ECU connector C-13 (terminal No.29) and the special tool (terminal No.1) SRS-ECU connector C-13 (terminal No.30) and the special tool (terminal No.2) Q: Does continuity exist? YES: Erase the diagnostic trouble code memory, and check the diagnostic trouble code. If DTC 27 set, replace the SRS-ECU (Refer to «SRS CONTROL UNIT (SRS-ECU)»(/mitsubishi/lancer-evolution/ix-2005-2007/remont/airbag/#supplemental-restraint-system-lancer-evolution) ). Then go to Step 3. NO: Repair harness wires between SRS-ECU connector C-13 and driver's seat belt pre-tensioner connector D-16. Then go to Step 3.
3. STEP 3. Recheck for diagnostic trouble code. Check again if the DTC is set. Erase the DTC. Turn the ignition switch to the "ON" position. Check if the DTC is set. Turn the ignition switch to the "LOCK" (OFF) position. Q: Is DTC 27 set? YES: Return to Step 1 . NO: The procedure is complete (If no malfunctions are found in all steps, an intermittent malfunction is suspected. Refer to «HOW TO COPE WITH INTERMITTENT MALFUNCTION»(/mitsubishi/lancer-evolution/ix-2005-2007/remont/hoistjack/#general-lancer-evolution__how-to-cope-with-intermittent-malfunctions) ).

Scheme 410

The SRS-ECU judges how severe a collision is by detecting signals from the front impact sensors and the front air bag analog G-sensor. If the impact is over a predetermined level, the SRS-ECU outputs an ignition signal. At this time, if the front air bag safing G-sensor is on, the seat belt pre-tensioner will deploy.

This DTC is set if there is abnormal resistance between the input terminals of the passenger's (front) seat belt pre-tensioner (squib). However, if no DTC reset, the SRS warning light will be switched off (DTC will be retained).

1. Improper engaged connector or defective short spring*
2. Short circuit between the passenger's (front) seat belt pre-tensioner (squib) circuit terminals
3. Damaged connector(s)
4. Malfunction of the SRS-ECU

Note. *: The squib circuit connectors integrate a "short" spring (which prevents the seat belt pre-tensioner from deploying unintentionally due to static electricity by shorting the positive wire to the ground wire in the squib circuit when the connectors are disconnected) (Refer to GENERAL DESCRIPTION ). Therefore, if connector C-13 or D-03 is damaged or improperly engaged, the short spring may not be released when the connector is connected.

Required Special Tools

1. MB991958: Scan Tool (M.U.T.-III Sub Assembly) MB991824: V.C.I. MB991827: M.U.T.-III USB Cable MB991911: M.U.T.-III Main Harness B
2. MB991865: Dummy resister
3. MB991866: Resister harness (For Pre-tensioner)

Scheme 411

Scheme 412

Scheme 413

Scheme 414

Scheme 415

Scheme 416

Scheme 417

Scheme 418

1. STEP 1. Using scan tool MB991958, read the diagnostic trouble code. CAUTION: To prevent damage to scan tool MB991958, always turn the ignition switch to the "LOCK" (OFF) position before connecting or disconnecting scan tool MB991958. Turn the ignition switch to the "ON" position. Check if the DTC is set. Turn the ignition switch to the "LOOK" (OFF) position. Q: Is DTC 34 set? YES: Go to Step 2. NO: Go to Step 3 .
2. STEP 2. Check the SRS-ECU connector C-13. Q: Is connector correctly engaged? YES: Go to Step 3. NO: Engage the connector correctly. Then go to Step 7 .
3. STEP 3. Check SRS-ECU connector C-13 and passenger's (front) seat belt pre-tensioner connector D-03 (Using scan tool MB991958, read the diagnostic trouble code). Disconnect the negative battery terminal. Disconnect connectors C-13 and D-03, and then reconnect them. For connector D-03, use a flat-tipped screwdriver to unlock the locking button at the harness side connector by withdrawing it toward you in two stages, and then disconnect the connector. Connector the negative battery terminal. Erase the diagnostic trouble code memory, and check the diagnostic trouble code. Q: Is DTC 28 set? YES: Go to Step 4. NO: The procedure is complete. It is assumed that DTC 28 set as connector C-13 or D-03 was engaged improperly.
4. STEP 4. Check the passenger's (front) seat belt pre-tensioner (Using scan tool MB991958, read the diagnostic trouble code). Disconnect the negative battery terminal. Disconnect passenger's (front) seat belt pre-tensioner connector D-03. Use a flat-tipped screwdriver to unlock the locking button at the harness connector by withdrawing it toward you in two stages, and then disconnect the connector. Connect special tool MB991865 to special tool MB991884. Connect special tool MB991884 to the D-03 harness connector. Connect the negative battery terminal. Erase the diagnostic trouble code memory, and check the diagnostic trouble code. Q: Is DTC 28 set? YES: Go to Step 5. NO: Replace the passenger's seat belt with pre-tensioner (Refer to «SEAT BELTS WITH PRE-TENSIONER»(/mitsubishi/lancer-evolution/ix-2005-2007/remont/airbag/#supplemental-restraint-system-lancer-evolution) ). Then go to Step 7 .
5. STEP 5. Check the passenger's (front) seat belt pre-tensioner circuit at the SRS-ECU connector C-13. Disconnect SRS-ECU connector C-13. WARNING: To prevent the seat belt pre-tensioner from deploying unintentionally, disconnect the passenger's (front) seat belt pre-tensioner connector D-03 to short the squib circuit. Disconnect passenger's (front) seat belt pre-tensioner connector D-03. Use a flat-tipped screwdriver to unlock the locking button at the harness connector by withdrawing it toward you in two stages, and then disconnect the connector. CAUTION: Insert an insulator such as a cable tie to a depth of 4mm (0.16 inch) or more, otherwise the short spring will not be released. Insert a cable tie [3 mm (0.12 inch) wide, 0.5 mm (0.02 inch) thick] between terminals 27, 28 and the short spring to release the short spring. CAUTION: Do not insert a test probe into the terminal from its front side directly, as the connector contact pressure may be weakened. Check for continuity between C-13 harness connector terminals 27 and 28. It should be open circuit. Q: Does continuity exist? YES: Go to Step 6. NO: Erase the diagnostic trouble code memory, and check the diagnostic trouble code. If DTC 28 set, replace the SRS-ECU (Refer to «SRS CONTROL UNIT (SRS-ECU)»(/mitsubishi/lancer-evolution/ix-2005-2007/remont/airbag/#supplemental-restraint-system-lancer-evolution) ). Then go to Step 7 .
6. STEP 6. Check the harness for short circuit between SRS-ECU connector C-13 (terminal No. 27 and 28) and passenger's (front) seat belt pre-tensioner connector D-03 (terminal No.1 and 2). NOTE: After inspecting intermediate connector C-112, inspect the wiring harness. If the intermediate connector C-112 is damaged, repair or replace it. Refer to «HARNESS CONNECTOR INSPECTION»(/mitsubishi/lancer-evolution/ix-2005-2007/remont/body-electrical/#general-electrical-lancer-evolution) . Q: Are harness wires between SRS-ECU connector C-13 (terminal No. 27 and 28) connector and passenger's (front) seat belt pre-tensioner connector D-03 (terminal No.1 and 2) in good condition? YES: Go to Step 7. NO: Repair the harness wires between SRS-ECU connector C-13 and passenger's (front) seat belt pre-tensioner connector D-03. Then go to Step 7.
7. STEP 7. Recheck for diagnostic trouble code DTC. Check again if the DTC is set. Erase the DTC. Turn the ignition switch to the "ON" position. Check if the DTC is set. Turn the ignition switch to the "LOCK" (OFF) position. Q: Is DTC 28 set? YES: Return to Step 1 . NO: The procedure is complete (If no malfunctions are found in all steps, an intermittent malfunction is suspected. Refer to «HOW TO COPE WITH INTERMITTENT MALFUNCTION»(/mitsubishi/lancer-evolution/ix-2005-2007/remont/hoistjack/#general-lancer-evolution__how-to-cope-with-intermittent-malfunctions) ).

Scheme 419

The SRS-ECU judges how severe a collision is by detecting signals from the front air bag analog G-sensor. If the impact is over a predetermined level, the SRS-ECU outputs an ignition signal. At this time, if the front air bag safing G-sensor is on, the seat belt pre-tensioner will deploy.

This DTC is set if there is abnormal resistance between the input terminals of the passenger's (front) seat belt pre-tensioner (squib). However, if no DTC reset, the SRS warning light will be switched off (DTC will be retained).

1. Open circuit in the passenger's (front) seat belt pre-tensioner (squib) circuit
2. Improper connector contact
3. Malfunction of the SRS-ECU

Required Special Tools

1. MB991958: Scan Tool (M.U.T.-III Sub Assembly) MB991824: V.C.I. MB991827: M.U.T.-III USB Cable MB991911: M.U.T.-III Main Harness B
2. MB991865: Dummy resister
3. MB991866: Resister harness (For Pre-tensioner)

Scheme 420

Scheme 421

Scheme 422

Scheme 423

Scheme 424

1. STEP 1. Check the passenger's (front) seat belt pre-tensioner (Using scan tool MB991958, read the diagnostic trouble code). Disconnect the negative battery terminal. Disconnect passenger's (front) seat belt pre-tensioner connector D-03. Use a flat-tipped screwdriver to unlock the locking button at the harness connector side connector by withdrawing it toward you in two stages, and then disconnect the connector. Connect special tool MB991865 to special tool MB991884. Connect special tool MB991884 to the D-03 harness connector. Connect the negative battery terminal. Erase the diagnostic trouble code memory, and check the diagnostic trouble code. Q: Is DTC 29 set? YES: Go to Step 2. NO: Replace the passenger's (front) seat belt with pre-tensioner (Refer to «SEAT BELTS WITH PRE-TENSIONER»(/mitsubishi/lancer-evolution/ix-2005-2007/remont/airbag/#supplemental-restraint-system-lancer-evolution) ). Then go to Step 3 .
2. STEP 2. Check the harness for open circuit between SRS-ECU connector C-13 (terminal No.27 and 28) and the passenger's (front) seat belt pre-tensioner connector D-03 (terminal No.1 and 2). Disconnect SRS-ECU connector C-13 and passenger's (front) seat belt pre-tensioner connector D-03, and measure at the wiring harness side. For connector D-03, use a flat-tipped screwdriver to unlock the locking button at the harness side connector by withdrawing it toward you in two stages, and then disconnect the connector. Connect D-03 harness connector to special tool MB991884. CAUTION: Do not insert a test probe into the terminal from its front side directly, as the connector contact pressure may be weakened. Check for continuity between the following terminals. It should be less than 2 ohms. SRS-ECU connector C-13 (terminal No.27) and the special tool (terminal No.2) SRS-ECU connector C-13 (terminal No.28) and the special tool (terminal No.1) Q: Does continuity exist? YES: Erase the diagnostic trouble code memory, and check the diagnostic trouble code. If DTC 29 set, replace the SRS-ECU (Refer to «SRS CONTROL UNIT (SRS-ECU)»(/mitsubishi/lancer-evolution/ix-2005-2007/remont/airbag/#supplemental-restraint-system-lancer-evolution) ). Then go to Step 3. NO: Repair the harness wires between SRS-ECU connector C-13 passenger's (front) seat belt pre-tensioner connector D-03. Then go to Step 3.
3. STEP 3. Recheck for diagnostic trouble code. Check again if the DTC is set. Erase the DTC. Turn the ignition switch to the "ON" position. Check if the DTC is set. Turn the ignition switch to the "LOCK" (OFF) position. Q: Is DTC 29 set? YES: Return to Step 1 . NO: The procedure is complete (If no malfunctions are found in all steps, an intermittent malfunction is suspected. Refer to «HOW TO COPE WITH INTERMITTENT MALFUNCTION»(/mitsubishi/lancer-evolution/ix-2005-2007/remont/hoistjack/#general-lancer-evolution__how-to-cope-with-intermittent-malfunctions) ).

This DTC is set if a poor connection at the SRS-ECU is detected. However, if the vehicle condition returns to normal, DTC number 34 will be automatically erased, and the SRS warning light will switch off.

1. Damaged connectors
2. Malfunction of the SRS-ECU

Required Special Tools

1. MB991958: Scan Tool (M.U.T.-III Sub Assembly) MB991824: V.C.I. MB991827: M.U.T.-III USB Cable MB991911: M.U.T.-III Main Harness B

Scheme 425

Scheme 426

Scheme 427

1. STEP 1. Check the SRS-ECU connector C-12, C-13. Q: Are connectors correctly engaged? YES: Go to Step 2. NO: Engage the connectors correctly. Then go to Step 3 .
2. STEP 2. Check SRS-ECU connector C-12, C-13 for damage. Disconnect SRS-ECU connectors C-12 and C-13. Check the connector lock switch terminal inside the harness side connector for improper contact or deformation. Q: Are the SRS-ECU connector C-12, C-13 in good condition? YES: Erase the diagnostic trouble code memory, and check the diagnostic trouble code. If DTC 34 sets, replace the SRS-ECU (Refer to «SRS CONTROL UNIT (SRS-ECU)»(/mitsubishi/lancer-evolution/ix-2005-2007/remont/airbag/#supplemental-restraint-system-lancer-evolution) ). Then go to Step 3. NO: Repair or replace the SRS-ECU connector C-12, C-13. (Refer to «HARNESS CONNECTOR INSPECTION»(/mitsubishi/lancer-evolution/ix-2005-2007/remont/body-electrical/#general-electrical-lancer-evolution) .) Then go to Step 3.
3. STEP 3. Recheck the diagnostic trouble code. Check again if the DTC is set. Erase the DTC. Turn the ignition switch to the "ON" position. Check if the DTC is set. Turn the ignition switch to the "LOCK" (OFF) position. Q: Is DTC 34 set? YES: There is no action to be taken. NO: The procedure is complete (If no malfunctions are found in all steps, an intermittent malfunction is suspected. Refer to «HOW TO COPE WITH INTERMITTENT MALFUNCTION»(/mitsubishi/lancer-evolution/ix-2005-2007/remont/hoistjack/#general-lancer-evolution__how-to-cope-with-intermittent-malfunctions) ).

This DTC is set after the air bag has deployed. If this DTC is set before the air bag has deployed, the cause is probably a malfunction inside the SRS-ECU.

Malfunction of the SRS-ECU

Replace the SRS-ECU (Refer to SRS CONTROL UNIT (SRS-ECU) ).

This code is set when the air bags have deployed simultaneously. If this code is set before the air bags have deployed, an internal failure may have occurred in the SRS-ECU.

Malfunction of the SRS-ECU

Replace the SRS-ECU (Refer to SRS CONTROL UNIT (SRS-ECU) ).

Scheme 428

1. The SRS-ECU is powered from the ignition switch (IG1).
2. The SRS-ECU power is supplied from two circuits. Even if one circuit is shut off, the air bag can inflate.

This DTC is set if the voltage between the IG1 terminals (fuse No.2 circuit) and ground is lower than a predetermined value for a continuous period of five second or more. However, if the vehicle condition returns to normal, DTC number 41 will be automatically erased, and the SRS warning light will switch off.

1. Damaged wiring harnesses or connectors
2. Malfunction of the SRS-ECU

Required Special Tools

1. MB991958: Scan Tool (M.U.T.-III Sub Assembly) MB991824: V.C.I. MB991827: M.U.T.-III USB Cable MB991911: M.U.T.-III Main Harness B

Scheme 429

Scheme 430

Scheme 431

Scheme 432

Scheme 433

Scheme 434

Scheme 435

Scheme 436

Scheme 437

Scheme 438

Scheme 439

Scheme 440

Scheme 441

1. STEP 1. Check junction block fuse number 2. Q: Is the fuse burned out? YES: Go to Step 4 . NO: Go to Step 2.
2. STEP 2. Check the power supply circuit for open circuit at the SRS-ECU connector C-12. Disconnect the negative battery terminal. Disconnect SRS-ECU connector C-12. Connect the negative battery terminal. Turn the ignition switch to the "ON" position. CAUTION: Do not insert a test probe into the terminal from its front side directly, as the connector contact pressure may be weakened. Measure the voltage between C-12 harness connector terminal 16 and body ground. Voltage should measure 9 volts or more. Q: Is the measured voltage within the specified range? YES: Erase the diagnostic trouble code memory, and check the diagnostic trouble code. If DTC 41 set, replace the SRS-ECU (Refer to «SRS CONTROL UNIT (SRS-ECU)»(/mitsubishi/lancer-evolution/ix-2005-2007/remont/airbag/#supplemental-restraint-system-lancer-evolution) ). Then go to Step 10 . NO: Go to Step 3.
3. STEP 3. Check the harness for open circuit between SRS-ECU connector C-12 (terminal No.16) and the ignition switch connector C-208 (terminal No.2). NOTE: After inspecting intermediate connectors C-214 and C-211, inspect the wiring harness. If intermediate connectors are damaged, repair or replace them. Refer to «HARNESS CONNECTOR INSPECTION»(/mitsubishi/lancer-evolution/ix-2005-2007/remont/body-electrical/#general-electrical-lancer-evolution) . Q: Is harness between SRS-ECU connector C-12 (terminal No.16) and the ignition switch connector C-208 (terminal No.2) in good condition? YES: Go to Step 10 . NO: Repair the harness wire between SRS-ECU connector C-12 and the ignition switch connector C-208. Then go to Step 10 .
4. STEP 4. Check for a burned-out fuse. Replace the fuse. Turn the ignition switch to the "ON" position, wait for at least one minute and then turn the ignition switch to the "LOCK" (OFF) position. Check the fuse. Q: Is the fuse in good condition? YES: Go to Step 10 . NO: Go to Step 5.
5. STEP 5. Check the SRS-ECU power supply circuit for short circuit to ground at the junction block connector C-214. Disconnect junction block connector C-214, and measure at the wiring harness side. CAUTION: Do not insert a test probe into the terminal from its front side directly, as the connector contact pressure may be weakened. Check for continuity between terminal 24 and body ground. It should be open circuit. Q: Does continuity exist? YES: Go to Step 8 . NO: Go to Step 6.
6. STEP 6. Check the fuse number 2-related circuit at junction block connector C-214. Disconnect junction block connector C-214, and measure at the wiring harness side. CAUTION: Do not insert a test probe into the terminal from its front side directly, as the connector contact pressure may be weakened. Check for continuity between C-214 harness connector terminal 25 and body ground. It should be open circuit. Q: Does continuity exist? YES: Go to Step 7. NO: Check the other circuit, which flows through multi-purpose fuse number 2.
7. STEP 7. Check the harness for short circuit to ground between junction block connector C-214 (terminal No.25) and combination meter connector C-01 (terminal No.9). NOTE: After inspecting intermediate connector C-23, inspect the wiring harness. If intermediate connectors are damaged, repair or replace them. Refer to «HARNESS CONNECTOR INSPECTION»(/mitsubishi/lancer-evolution/ix-2005-2007/remont/body-electrical/#general-electrical-lancer-evolution) . Q: Is the harness wire between junction block connector C-214 (terminal No.25) and combination meter connector C-01 (terminal No.9) in good condition? YES: Go to Step 10 . NO: Repair the harness wire between junction block connector C-214 and combination meter connector C-01. Then go to Step 10 .
8. STEP 8. Check the power supply circuit for short circuit to ground at the SRS-ECU connector C-12. Disconnect SRS-ECU connector C-12, and measure at the wiring harness side. CAUTION: Do not insert a test probe into the terminal from its front side directly, as the connector contact pressure may be weakened. Check for continuity between terminal 16 and body ground. It should be open circuit. Q: Dose continuity exist? YES: Go to Step 9. NO: Erase the diagnostic trouble code memory, and check the diagnostic trouble code. If DTC 41 set, replace the SRS-ECU (Refer to «SRS CONTROL UNIT (SRS-ECU)»(/mitsubishi/lancer-evolution/ix-2005-2007/remont/airbag/#supplemental-restraint-system-lancer-evolution) ). Then go to Step 10 .
9. STEP 9. Check the harness for short circuit to ground between SRS-ECU connector C-12 (terminal No.16) and junction block connector C-214 (terminal No.24). Q: Are the harness wires between SRS-ECU connector C-12 (terminal No.16) and junction block connector C-214 (terminal No.24) in good condition? YES: Go to Step 10. NO: Repair the harness wires between SRS-ECU connector C-12 and junction block connector C-214. Then go to Step 10.
10. STEP 10. Recheck for diagnostic trouble code. Check again if the DTC is set. Erase the DTC. Turn the ignition switch to the "ON" position. Check if the DTC is set. Turn the ignition switch to the "LOCK" (OFF) position. Q: Is DTC 41 set? YES: Return to Step 1 . NO: The procedure is complete (If no malfunctions are found in all steps, an intermittent malfunction is suspected. Refer to «HOW TO COPE WITH INTERMITTENT MALFUNCTION»(/mitsubishi/lancer-evolution/ix-2005-2007/remont/hoistjack/#general-lancer-evolution__how-to-cope-with-intermittent-malfunctions) ).

Scheme 442

1. The SRS-ECU is powered from the ignition switch (IG1).
2. The SRS-ECU power is supplied from two circuits. Even if one circuit is shut off, the air bag can inflate.

This DTC is set if the voltage between the IG1 terminals (fuse No.3 circuit) and ground is lower than a predetermined value for a continuous period of five second or more. However, if the vehicle condition returns to normal, DTC number 42 will be automatically erased, and the SRS warning light will switch off.

1. Damaged wiring harnesses or connectors
2. Malfunction of the SRS-ECU

Required Special Tools

1. MB991958: Scan Tool (M.U.T.-III Sub Assembly) MB991824: V.C.I. MB991827: M.U.T.-III USB Cable MB991911: M.U.T.-III Main Harness B

Scheme 443

Scheme 444

Scheme 445

Scheme 446

Scheme 447

Scheme 448

Scheme 449

Scheme 450

1. STEP 1. Check junction block fuse number 3. Q: Is the fuse burned out? YES: Go to Step 4 . NO: Go to Step 2.
2. STEP 2. Check the power supply circuit harness for open circuit at the SRS-ECU connector C-12. Disconnect the negative battery terminal. Disconnect SRS-ECU connector C-12. Connect the negative battery terminal. Turn the ignition switch to the "ON" position. CAUTION: Do not insert a test probe into the terminal from its front side directly, as the connector contact pressure may be weakened. Measure the voltage between C-12 harness connector terminal 13 and body ground. Voltage should measure 9 volts or more. Q: Is the measured voltage within the specified range? YES: Erase the diagnostic trouble code memory, and check the diagnostic trouble code. If DTC 42 set, replace the SRS-ECU (Refer to «SRS CONTROL UNIT (SRS-ECU)»(/mitsubishi/lancer-evolution/ix-2005-2007/remont/airbag/#supplemental-restraint-system-lancer-evolution) ). Then go to Step 8 . NO: Go to Step 3.
3. STEP 3. Check the harness for open circuit between SRS-ECU connector C-12 (terminal No.13) and the ignition switch connector C-208 (terminal No.2). NOTE: After inspecting intermediate connectors C-214 and C-211, inspect the wiring harness. If intermediate connectors are damaged, repair or replace them. Refer to «HARNESS CONNECTOR INSPECTION»(/mitsubishi/lancer-evolution/ix-2005-2007/remont/body-electrical/#general-electrical-lancer-evolution) . Q: Is the harness wire between SRS-ECU connector C-12 (terminal No.13) and the ignition switch connector C-208 (terminal No.2) in good condition? YES: Go to Step 8 . NO: Repair the harness wire between SRS-ECU connector C-12 and the ignition switch connector C-208. Then go to Step 8 .
4. STEP 4. Check for a burned-out fuse. Replace the fuse. Turn the ignition switch to the "ON" position, wait for at least one minute and then turn the ignition switch to the "LOCK" (OFF) position. Check the fuse. Q: Is the fuse in good condition? YES: Go to Step 8 . NO: Go to Step 5.
5. STEP 5. Check the SRS-ECU power supply circuit for short circuit to ground at the junction block connector C-214. Disconnect junction block connector C-214, and measure at the wiring harness side. CAUTION: Do not insert a test probe into the terminal from its front side directly, as the connector contact pressure may be weakened. Check for continuity between C-214 harness connector terminal 7 and body ground. It should be open circuit. Q: Does continuity exist? YES: Go to Step 6. NO: Check the other circuit, which flows through fuse number 3.
6. STEP 6. Check the power supply circuit for short circuit to ground at the SRS-ECU connector C-12. Disconnect SRS-ECU connector C-12, and measure at the wiring harness side. CAUTION: Do not insert a test probe into the terminal from its front side directly, as the connector contact pressure may be weakened. Check for continuity between C-12 harness connector terminal 13 and body ground. It should be open circuit. Q: Does continuity exist? YES: Go to Step 7. NO: Erase the diagnostic trouble code memory, and check the diagnostic trouble code. If DTC 42 set, replace the SRS-ECU (Refer to «SRS CONTROL UNIT (SRS-ECU)»(/mitsubishi/lancer-evolution/ix-2005-2007/remont/airbag/#supplemental-restraint-system-lancer-evolution) ). Then go to Step 8 .
7. STEP 7. Check the harness for short circuit to ground between SRS-ECU connector C-12 (terminal No.13) and junction block connector C-214 (terminal No.7). Q: Is the harness wire between SRS-ECU connector C-12 (terminal No.13) and junction block connector C-214 (terminal No.7) in good condition? YES: Go to Step 8. NO: Repair the harness wire between SRS-ECU connector C-12 and junction block connector C-214. Then go to Step 8.
8. STEP 8. Recheck for diagnostic trouble code. Check again if the DTC is set. Erase the DTC. Turn the ignition switch to the "ON" position. Check if the DTC is set. Turn the ignition switch to the "LOCK" (OFF) position. Q: Is DTC 42 set? YES: Return to Step 1 . NO: The procedure is complete (If no malfunctions are found in all steps, an intermittent malfunction is suspected. Refer to «HOW TO COPE WITH INTERMITTENT MALFUNCTION»(/mitsubishi/lancer-evolution/ix-2005-2007/remont/hoistjack/#general-lancer-evolution__how-to-cope-with-intermittent-malfunctions) ).

Scheme 451

1. Power for the SRS warning light is supplied from the ignition switch (IG1).
2. The SRS warning light illuminates when the ignition switch is turned to the "ON" position and goes out after approximately seven seconds if there is not a malfunction in the SRS system.

This DTC is set when an open circuit is detected for a continuous period of five seconds while the SRS-ECU is monitoring the SRS warning light and the light is OFF. (transistor OFF.) However, If the vehicle condition returns to normal, DTC number 43 will be automatically erased, and the SRS warning light will switch off.

1. Damaged wiring harnesses or connectors
2. Blown bulb
3. Malfunction of the SRS-ECU
4. Malfunction of the combination meter

Required Special Tools

1. MB991958: Scan Tool (M.U.T.-III Sub Assembly) MB991824: V.C.I. MB991827: M.U.T.-III USB Cable MB991911: M.U.T.-III Main Harness B

Scheme 452

Scheme 453

Scheme 454

Scheme 455

Scheme 456

Scheme 457

Scheme 458

1. STEP 1. Check the SRS warning light. Connect the negative battery terminal. Disconnect SRS-ECU connector C-12. Turn the ignition switch to the "ON" position. Q: Does the warning light illuminate? YES: Erase the diagnostic trouble code memory, and check the diagnostic trouble code. If DTC 43 set, replace the SRS-ECU (Refer to «SRS CONTROL UNIT (SRS-ECU)»(/mitsubishi/lancer-evolution/ix-2005-2007/remont/airbag/#supplemental-restraint-system-lancer-evolution) ). Then go to Step 6 . NO: Go to Step 2.
2. STEP 2. Check the ground line at the SRS-ECU connector C-12. Disconnect the negative battery terminal. Disconnect SRS-ECU connector C-12. CAUTION: Do not insert a test probe into the terminal from its front side directly, as the connector contact pressure may be weakened. Check for continuity between C-12 harness connector terminal 7 and ground. It should be less than 2 ohms. Q: Does continuity exist? YES: Go to Step 3. NO: Go to Step 5 .
3. STEP 3. Check the SRS warning light bulb. Q: Has the SRS warning light bulb blown? YES: Replace the SRS warning light bulb. Then go to Step 6 . NO: Go to Step 4.
4. STEP 4. Check the harness for open circuit between ignition switch connector C-208 (terminal No.2) and combination meter connector C-01 (terminal No.9), and between combination meter connector C-02 (terminal No.36) and SRS-ECU connector C-12 (terminal No.8). NOTE: After inspecting intermediate connectors C-01, C-02, C-23, C-211, C-214 inspect the wiring harness. If intermediate connectors C-01, C-02, C-23, C-211, C-214 are damaged, repair or replace them. Refer to «HARNESS CONNECTOR INSPECTION»(/mitsubishi/lancer-evolution/ix-2005-2007/remont/body-electrical/#general-electrical-lancer-evolution) . Q: Are the harness wires between SRS-ECU connector C-12 and the ignition switch connector C-208 in good condition? YES: Replace the combination meter (Refer to «COMBINATION METERS ASSEMBLY»(/mitsubishi/lancer-evolution/ix-2005-2007/remont/antenna-systems/#chassis-electrical-lancer-evolution) ). Then go to Step 6 . NO: Repair the harness wires between SRS-ECU connector C-12 and the ignition switch connector C-208. Then go to Step 6 .
5. STEP 5. Check the harness for open circuit between SRS-ECU connector C-12 (terminal No.7) and ground. Q: Is the harness wire between SRS-ECU connector C-12 (terminal No.7) and ground in good condition? YES: Go to Step 6. NO: Repair the harness wires between SRS-ECU connector C-12 and ground. Then go to Step 6.
6. STEP 6. Recheck for diagnostic trouble code. Check again if the DTC is set. Erase the DTC. Turn the ignition switch to the "ON" position. Check if the DTC is set. Turn the ignition switch to the "LOCK" (OFF) position. Q: Is DTC 43 set? YES: Return to Step 1 . NO: The procedure is complete (If no malfunctions are found in all steps, an intermittent malfunction is suspected. Refer to «HOW TO COPE WITH INTERMITTENT MALFUNCTION»(/mitsubishi/lancer-evolution/ix-2005-2007/remont/hoistjack/#general-lancer-evolution__how-to-cope-with-intermittent-malfunctions) ).

Scheme 459

1. Power for the SRS warning light is supplied from the ignition switch (IG1).
2. The SRS warning light illuminates when the ignition switch is turned to the "ON" position and goes out after approximately seven seconds if there is not a malfunction in the SRS system.

This DTC is set when a short to ground occurs in the harness between the SRS warning light and SRS-ECU while SRS-ECU is monitoring the light and the light is ON.

1. Damaged wiring harnesses or connectors
2. Malfunction of the SRS-ECU
3. Malfunction of the combination meter

Required Special Tools

1. MB991958: Scan Tool (M.U.T.-III Sub Assembly) MB991824: V.C.I. MB991827: M.U.T.-III USB Cable MB991911: M.U.T.-III Main Harness B

Scheme 460

Scheme 461

Scheme 462

1. STEP 1. Check SRS-ECU connector C-12 for damage. Disconnect SRS-ECU connector C-12. Check the short bar for warning light inside the harness connector for improper contact or deformation. Q: Is SRS-ECU connector C-12 in good condition? YES: Then go to Step 2. NO: Repair or replace the SRS-ECU connector C-12 (Refer to «SRS CONTROL UNIT (SRS-ECU)»(/mitsubishi/lancer-evolution/ix-2005-2007/remont/airbag/#supplemental-restraint-system-lancer-evolution) ). Then go to Step 4 .
2. STEP 2. Check the SRS warning light. Disconnect the negative battery cable. Disconnect the combination meter connector C-02. Connect the negative battery cable. Turn the ignition switch to the "ON" position. Q: Does the SRS warning light go out? YES: Go to Step 3. NO: Replace the combination meter (Refer to «COMBINATION METER ASSEMBLY»(/mitsubishi/lancer-evolution/ix-2005-2007/remont/antenna-systems/#chassis-electrical-lancer-evolution) ). Then go to Step 4 .
3. STEP 3. Check the harness for short circuit to ground between SRS-ECU connector C-12 (terminal No.8) and combination meter connector C-02 (terminal No.36). Q: Is the harness wire between the SRS-ECU connector C-12 (terminal No.8) and combination meter connector C-02 (terminal No.36) in good condition? YES: Erase the diagnostic trouble code memory, and check the diagnostic trouble code. If DTC 43 set, replace the SRS-ECU (Refer to «SRS CONTROL UNIT (SRS-ECU)»(/mitsubishi/lancer-evolution/ix-2005-2007/remont/airbag/#supplemental-restraint-system-lancer-evolution) ). Then go to Step 4. NO: Repair the harness wire between SRS-ECU connector C-12 and combination meter connector C-02. Then go to Step 4.
4. STEP 4. Recheck for diagnostic trouble code. Check again if the DTC is set. Erase the DTC. Turn the ignition switch to the "ON" position. Check if the DTC is set. Turn the ignition switch to the "LOCK" (OFF) position. Q: Is DTC 43 set? YES: Return to Step 1 . NO: The procedure is complete (If no malfunctions are found in all steps, an intermittent malfunction is suspected. Refer to «HOW TO COPE WITH INTERMITTENT MALFUNCTION»(/mitsubishi/lancer-evolution/ix-2005-2007/remont/hoistjack/#general-lancer-evolution__how-to-cope-with-intermittent-malfunctions) ).

Scheme 463

1. Power for the SRS warning light is supplied from the ignition switch (IG1).
2. The SRS warning light illuminates when the ignition switch is turned to the "ON" position and goes out after approximately seven seconds if there is not a malfunction in the SRS system.

1. This DTC is set under one of the following cases while the SRS-ECU is monitoring the warning light drive circuit: When a short circuit occurs in the warning light drive circuit. When a malfunction is detected in the output transistor inside the SRS-ECU. However, If the vehicle condition returns to normal, DTC number 44 will be automatically erased, and the SRS warning light will switch off.

1. Damaged wiring harnesses or connectors
2. Malfunction of the SRS-ECU

Required Special Tools

1. MB991958: Scan Tool (M.U.T.-III Sub Assembly) MB991824: V.C.I. MB991827: M.U.T.-III USB Cable MB991911: M.U.T.-III Main Harness B

1. STEP 1. Check the SRS warning light drive circuit system. Refer to «DTC 43: SRS Warning Light Drive Circuit System Fault 1 (Light does not Switch Off.)»(/mitsubishi/lancer-evolution/ix-2005-2007/remont/airbag/#supplemental-restraint-system-lancer-evolution) . Q: Is the SRS warning light drive circuit normal? YES: Erase the diagnostic trouble code memory, and check the diagnostic trouble code. If DTC 43 set, replace the SRS-ECU (Refer to «SRS CONTROL UNIT (SRS-ECU)»(/mitsubishi/lancer-evolution/ix-2005-2007/remont/airbag/#supplemental-restraint-system-lancer-evolution) ). Then go to Step 2. NO: Repair the harness wires or replace the SRS-ECU (Refer to «SRS CONTROL UNIT (SRS-ECU)»(/mitsubishi/lancer-evolution/ix-2005-2007/remont/airbag/#supplemental-restraint-system-lancer-evolution) ). Then go to Step 2.
2. STEP 2. Recheck for diagnostic trouble code. Check again if the DTC is set. Erase the DTC. Turn the ignition switch to the "ON" position. Check if the DTC is set. Turn the ignition switch to the "LOCK" (OFF) position. Q: Is DTC 44 set? YES: There is no action to be taken. NO: The procedure is complete (If no malfunctions are found in all steps, an intermittent malfunction is suspected. Refer to «HOW TO COPE WITH INTERMITTENT MALFUNCTION»(/mitsubishi/lancer-evolution/ix-2005-2007/remont/hoistjack/#general-lancer-evolution__how-to-cope-with-intermittent-malfunctions) ).

This DTC is set when an SRS-ECU designed only for the driver's airbag, is installed on vehicle, which has both driver's and passenger's side air bags. However, If the vehicle condition returns to normal, DTC number 46 will be automatically erased, and the SRS warning light will switch off.

Incorrect SRS-ECU

Replace the SRS-ECU (Refer to SRS CONTROL UNIT (SRS-ECU) ).

Scheme 464

1. The SRS-ECU judges how severe a collision is by detecting signals from the front air bag analog G-sensor. If the impact is over a predetermined level, the SRS-ECU outputs an ignition signal. At this time, if the front air bag safing G-sensor is on, the SRS air bag will inflate.
2. The ignition signal is input to the air bag module via the clock spring to inflate the air bag.

This DTC is set if there is abnormal resistance between the input terminals of the driver's air bag module (squib).

1. Malfunction of the clock spring
2. Damaged harness wires and connectors
3. Short to the power supply in the driver's air bag module (squib) harness
4. Malfunction of the SRS-ECU

Required Special Tools

1. MB991958: Scan Tool (M.U.T.-III Sub Assembly) MB991824: V.C.I. MB991827: M.U.T.-III USB Cable MB991911: M.U.T.-III Main Harness B
2. MB991865: Dummy resister
3. MB991866: Resister harness

Scheme 465

Scheme 466

Scheme 467

Scheme 468

Scheme 469

Scheme 470

1. STEP 1. Check the driver's air bag module (Using scan tool MB991958, read the diagnostic trouble code). Disconnect the negative battery terminal. By sliding the A section (in the figure) of driver's air bag module connector C-201 in arrow direction, disconnect the connector. Connect special tool MB991865 to special tool MB991866. CAUTION: Do not insert a test probe into the terminal from its front side directly, as the connector contact pressure may be weakened. Insert special tool MB991866 into clock spring side air bag module connector C-201 by backprobing. Connect the negative battery terminal. Erase the diagnostic trouble code memory, and check the diagnostic trouble code. Q: Is DTC 61 out put? YES: Go to Step 2. NO: Replace the driver's air bag module (Refer to «AIR BAG MODULE(S) AND CLOCK SPRING»(/mitsubishi/lancer-evolution/ix-2005-2007/remont/airbag/#supplemental-restraint-system-lancer-evolution) ). Then go to Step 5 .
2. STEP 2. Check the clock spring (Using scan tool MB991958, read the diagnostic trouble code). Disconnect the negative battery terminal. Disconnect the clock spring connector C-205. Connect special tool MB991865 to special tool MB991866. CAUTION: Do not insert a test probe into the terminal from its front side directly, as the connector contact pressure may be weakened. Insert special tool MB991866 into clock spring harness side connector C-205 (terminal No.3 and 4) by backprobing. Connect the negative battery terminal. Erase the diagnostic trouble code memory, and check the diagnostic trouble code. Q: Is DTC 61 set? YES: Go to Step 3. NO: Replace the clock spring (Refer to «AIR BAG MODULE(S) AND CLOCK SPRING»(/mitsubishi/lancer-evolution/ix-2005-2007/remont/airbag/#supplemental-restraint-system-lancer-evolution) ). Then go to Step 5 .
3. STEP 3. Check the driver's air bag module circuit at the SRS-ECU connector C-12. Disconnect SRS-ECU connector C-12. WARNING: To prevent the air bag from deploying unintentionally, disconnect the clock spring connector C-205 to short the squib circuit. Disconnect the clock spring connector C-205. Turn the ignition switch to the "ON" position. CAUTION: Do not insert a test probe into the terminal from its front side directly, as the connector contact pressure may be weakened. Measure the voltage between C-12 harness connector terminals 11, 12 and body ground. Voltage should measure 0 volt. Q: Is the measured voltage 0 volt? YES: Erase the diagnostic trouble code memory, and check the diagnostic trouble code. If DTC 61 sets, replace the SRS-ECU (Refer to «SRS CONTROL UNIT (SRS-ECU)»(/mitsubishi/lancer-evolution/ix-2005-2007/remont/airbag/#supplemental-restraint-system-lancer-evolution) ). Then go to Step 5 . NO: Go to Step 4.
4. STEP 4. Check the harness for short circuit to power supply between SRS-ECU connector C-12 (terminal No.11 and 12) and clock spring connector C-205 (terminal No.3 and 4). Q: Are the harness wires between the SRS-ECU connector C-12 (terminal No.11 and 12) and clock spring connector C-205 (terminal No.3 and 4) in good condition? YES: Go to Step 5. NO: Repair the harness wires between SRS-ECU connector C-12 and clock spring connector C-205. Then go to Step 5.
5. STEP 5. Recheck for diagnostic trouble code. Check again if the DTC is set. Erase the DTC. Turn the ignition switch to the "ON" position. Check if the DTC is set. Turn the ignition switch to the "LOCK" (OFF) position. Q: Is DTC 61 set? YES: Return to Step 1 . NO: The procedure is complete (If no malfunctions are found in all steps, an intermittent malfunction is suspected. Refer to «HOW TO COPE WITH INTERMITTENT MALFUNCTION»(/mitsubishi/lancer-evolution/ix-2005-2007/remont/hoistjack/#general-lancer-evolution__how-to-cope-with-intermittent-malfunctions) ).

Scheme 471

1. The SRS-ECU judges how severe a collision is by detecting signals from the front air bag analog G-sensor. If the impact is over a predetermined level, the SRS-ECU outputs an ignition signal. At this time, if the front air bag safing G-sensor is on, the SRS air bag will inflate.
2. The ignition signal is input to the air bag module via the clock spring to inflate the air bag.

This DTC is set if there is abnormal resistance between the input terminals of the driver's air bag module (squib).

1. Malfunction of the clock spring
2. Damaged harness wires and connectors
3. Short to the ground in the driver's air bag module (squib) harness
4. Malfunction of the SRS-ECU

Required Special Tools

1. MB991958: Scan Tool (M.U.T.-III Sub Assembly) MB991824: V.C.I. MB991827: M.U.T.-III USB Cable MB991911: M.U.T.-III Main Harness B
2. MB991865: Dummy resister
3. MB991866: Resister harness

Scheme 472

Scheme 473

Scheme 474

Scheme 475

Scheme 476

Scheme 477

1. STEP 1. Check the driver's air bag module (Using scan tool MB991958, read the diagnostic trouble code). Disconnect the negative battery terminal. By sliding the A section (in the figure) of driver's air bag module connector C-201 in arrow direction, disconnect the connector. Connect special tool MB991865 to special tool MB991866. CAUTION: Do not insert a test probe into the terminal from its front side directly, as the connector contact pressure may be weakened. Insert special tool MB991866 into clock spring side air bag module connector C-201 by backprobing. Connect the negative battery terminal. Erase the diagnostic trouble code memory, and check the diagnostic trouble code. Q: Is DTC 62 set? YES: Go to Step 2. NO: Replace the driver's air bag module (Refer to «AIR BAG MODULE(S) AND CLOCK SPRING»(/mitsubishi/lancer-evolution/ix-2005-2007/remont/airbag/#supplemental-restraint-system-lancer-evolution) ). Then go to Step 5 .
2. STEP 2. Check the clock spring (Using scan tool MB991958, read the diagnostic trouble code). Disconnect the clock spring connector C-205. Connect special tool MB991865 to special tool MB991866. CAUTION: Do not insert a test probe into the terminal from its front side directly, as the connector contact pressure may be weakened. Insert special tool MB991866 into clock spring harness side connector C-205 (terminal No.3 and 4) by backprobing. Connect the negative battery terminal. Erase the diagnostic trouble code memory, and check the diagnostic trouble code. Q: Is DTC 62 set? YES: Go to Step 3. NO: Replace the clock spring (Refer to «AIR BAG MODULE(S) AND CLOCK SPRING»(/mitsubishi/lancer-evolution/ix-2005-2007/remont/airbag/#supplemental-restraint-system-lancer-evolution) ). Then go to Step 5 .
3. STEP 3. Check the driver's air bag module circuit at the SRS-ECU connector C-12. Disconnect SRS-ECU connector C-12. WARNING: To prevent the air bag from deploying unintentionally, disconnect the clock spring connector C-205 to short the squib circuit. Disconnect the clock spring connector C-205. CAUTION: Do not insert a test probe into the terminal from its front side directly, as the connector contact pressure may be weakened. Check for continuity between C-12 harness connector terminals 11, 12 and body ground. It should be open circuit. Q: Does continuity exist? YES: Go to Step 5 . NO: Erase the diagnostic trouble code memory, and check the diagnostic trouble code. If DTC 62 set, replace the SRS-ECU (Refer to «SRS CONTROL UNIT (SRS-ECU)»(/mitsubishi/lancer-evolution/ix-2005-2007/remont/airbag/#supplemental-restraint-system-lancer-evolution) ). Then go to Step 5 .
4. STEP 4. Check the harness for short circuit to ground between SRS-ECU connector C-12 (terminal No.11 and 12) and clock spring connector C-205 (terminal No.3 and 4). Q: Are the harness wires between SRS-ECU connector C-12 (terminal No.11 and 12) and clock spring connector C-205 (terminal No.3 and 4) in good condition? YES: Go to Step 5. NO: Repair the harness wires between SRS-ECU connector C-12 and clock spring connector C-205. Then go to Step 5.
5. STEP 5. Recheck for diagnostic trouble code. Check again if the DTC is set. Erase the DTC. Turn the ignition switch to the "ON" position. Check if the DTC is set. Turn the ignition switch to the "LOCK" (OFF) position. Q: Is DTC 62 set? YES: Return to Step 1 . NO: The procedure is complete (If no malfunctions are found in all steps, an intermittent malfunction is suspected. Refer to «HOW TO COPE WITH INTERMITTENT MALFUNCTION»(/mitsubishi/lancer-evolution/ix-2005-2007/remont/hoistjack/#general-lancer-evolution__how-to-cope-with-intermittent-malfunctions) ).

Scheme 478

1. The SRS-ECU judges how severe a collision is by detecting signals from the front air bag analog G-sensor. If the impact is over a predetermined level, the SRS-ECU outputs an ignition signal. At this time, if the front air bag safing G-sensor is on, the SRS air bag will inflate.
2. The ignition signal is input to the air bag module to inflate the air bag.

This DTC is set if there is abnormal resistance between the input terminals of the passenger's (front) air bag module (squib).

1. Damaged harness wires and connectors
2. Short to the power supply in the passenger's (front) air bag module (squib) harness
3. Malfunction of the SRS-ECU

Required Special Tools

1. MB991958: Scan Tool (M.U.T.-III Sub Assembly) MB991824: V.C.I. MB991827: M.U.T.-III USB Cable MB991911: M.U.T.-III Main Harness B
2. MB991865: Dummy resister
3. MB991866: Resister harness

Scheme 479

Scheme 480

Scheme 481

Scheme 482

Scheme 483

1. STEP 1. Check the passenger's (front) air bag module (Using scan tool MB991958, read the diagnostic trouble code). Disconnect passenger's (front) air bag module connector C-106. Connect special tool MB991865 to special tool MB991866. CAUTION: Do not insert a test probe into the terminal from its front side directly, as the connector contact pressure may be weakened. Disconnect the passenger's (front) air bag module connector C-106, and insert special tool MB991866 into the harness connector by backprobing. Connect the negative battery terminal. Erase the diagnostic trouble code memory, and check the diagnostic trouble code. Q: Is DTC 64 set? YES: Go to Step 2. NO: Replace the passenger's (front) air bag module (Refer to «AIR BAG MODULE(S) AND CLOCK SPRING»(/mitsubishi/lancer-evolution/ix-2005-2007/remont/airbag/#supplemental-restraint-system-lancer-evolution) ). Then go to Step 4 .
2. STEP 2. Check the passenger's (front) air bag module circuit at the SRS-ECU connector C-12. Disconnect SRS-ECU connector C-12. WARNING: To prevent the air bag from deploying unintentionally, disconnect the passenger's (front) air bag module connector C-106 to short the squib circuit. Disconnect the passenger's (front) air bag module connector C-106. Turn the ignition switch to the "ON" position. CAUTION: Do not insert a test probe into the terminal from its front side directly, as the connector contact pressure may be weakened. Measure the voltage between C-12 harness connector terminals 9, 10 and body ground. Voltage should measure 0 volt. Q: Is the measured voltage 0 volt? YES: Erase the diagnostic trouble code memory, and check the diagnostic trouble code. If DTC 64 set, replace the SRS-ECU (Refer to «SRS CONTROL UNIT (SRS-ECU)»(/mitsubishi/lancer-evolution/ix-2005-2007/remont/airbag/#supplemental-restraint-system-lancer-evolution) ). Then go to Step 4 . NO: Go to Step 3.
3. STEP 3. Check the harness wires for short circuit to power supply between SRS-ECU connector C-12 (terminal No. 9 and 10) and passenger's (front) air bag module connector C-106 (terminal No. 1 and 2). Q: Are the harness wires between SRS-ECU connector C-12 (terminal No. 9 and 10) and passenger's (front) air bag module connector C-106 (terminal No.1 and 2) in good condition? YES: Go to Step 4. NO: Repair the harness wires between SRS-ECU connector C-12 and passenger's (front) air bag module connector C-106. Then go to Step 4.
4. STEP 4. Recheck for diagnostic trouble code. Check again if the DTC is set. Erase the DTC. Turn the ignition switch to the "ON" position. Check if the DTC is set. Turn the ignition switch to the "LOCK" (OFF) position. Q: Is DTC 64 set? YES: Return to Step 1 . NO: The procedure is complete (If no malfunctions are found in all steps, an intermittent malfunction is suspected. Refer to «HOW TO COPE WITH INTERMITTENT MALFUNCTION»(/mitsubishi/lancer-evolution/ix-2005-2007/remont/hoistjack/#general-lancer-evolution__how-to-cope-with-intermittent-malfunctions) ).

Scheme 484

1. The SRS-ECU judges how severe a collision is by detecting signals from the front air bag analog G-sensor. If the impact is over a predetermined level, the SRS-ECU outputs an ignition signal. At this time, if the front air bag safing G-sensor is on, the SRS air bag will inflate.
2. The ignition signal is input to the air bag module to inflate the air bag.

This DTC is set if there is abnormal resistance between the input terminals of the passenger's (front) air bag module (squib).

1. Damaged harness wires and connectors
2. Short to the ground in the passenger's (front) air bag module (squib) harness
3. Malfunction of the SRS-ECU

Required Special Tools

1. MB991958: Scan Tool (M.U.T.-III Sub Assembly) MB991824: V.C.I. MB991827: M.U.T.-III USB Cable MB991911: M.U.T.-III Main Harness B
2. MB991865: Dummy resister
3. MB991866: Resister harness

Scheme 485

Scheme 486

Scheme 487

Scheme 488

Scheme 489

1. STEP 1. Check the passenger's (front) air bag module (Using scan tool MB991958, read the diagnostic trouble code). Disconnect the negative battery terminal. Disconnect passenger' (front) air bag module connector C-106. Connect special tool MB991865 to special tool MB991866. CAUTION: Do not insert a test probe into the terminal from its front side directly, as the connector contact pressure may be weakened. Disconnect the passenger's (front) air bag module connector C-106, and insert special tool MB991866 into the harness connector by backprobing. Connect the negative battery terminal. Erase the diagnostic trouble code memory, and check the diagnostic trouble code. Q: Is DTC 65 set? YES: Go to Step 2. NO: Replace the passenger's (front) air bag module (Refer to «AIR BAG MODULE(S) AND CLOCK SPRING»(/mitsubishi/lancer-evolution/ix-2005-2007/remont/airbag/#supplemental-restraint-system-lancer-evolution) ). Then go to Step 4 .
2. STEP 2. Check the passenger's (front) air bag module circuit at the SRS-ECU connector C-12. Disconnect SRS-ECU connector C-12. DANGER To prevent the air bag from deploying unintentionally, disconnect the passenger's (front) air bag module connector C-106 to short the squib circuit. Disconnect the passenger's (front) air bag module connector C-106. CAUTION: Do not insert a test probe into the terminal from its front side directly, as the connector contact pressure may be weakened. Check for continuity between C-12 harness connector terminals 9, 10 and body ground. It should be open circuit. Q: Does continuity exist? YES: Go to Step 3. NO: Erase the diagnostic trouble code memory, and check the diagnostic trouble code. If DTC 65 set, replace the SRS-ECU (Refer to «SRS CONTROL UNIT (SRS-ECU)»(/mitsubishi/lancer-evolution/ix-2005-2007/remont/airbag/#supplemental-restraint-system-lancer-evolution) ). Then go to Step 4 .
3. STEP 3. Check the harness wires for short circuit to ground between SRS-ECU connector C-12 (terminal No.9 and 10) and passenger's (front) air bag module connector C-106 (terminal No.1 and 2). Q: Are the harness wires between SRS-ECU connector C-12 (terminal No.9 and 10) and passenger's (front) air bag module connector C-106 (terminal No.1 and 2). good condition? YES: Go to Step 4. NO: Repair the harness wires between SRS-ECU connector C-12 and passenger's (front) air bag module connector C-106. Then go to Step 4.
4. STEP 4. Recheck for diagnostic trouble code. Check again if the DTC is set. Erase the DTC. Turn the ignition switch to the "ON" position. Check if the DTC is set. Turn the ignition switch to the "LOCK" (OFF) position. Q: Is DTC 65 set? YES: Return to Step 1 . NO: The procedure is complete (If no malfunctions are found in all steps, an intermittent malfunction is suspected. Refer to «HOW TO COPE WITH INTERMITTENT MALFUNCTION»(/mitsubishi/lancer-evolution/ix-2005-2007/remont/hoistjack/#general-lancer-evolution__how-to-cope-with-intermittent-malfunctions) ).

Scheme 490

The SRS-ECU judges how severe a collision is by detecting signals from the front impact sensors and the front air bag analog G-sensor. If the impact is over a predetermined level, the SRS-ECU outputs an ignition signal. At this time, if the front air bag safing G-sensor is on, the seat belt pre-tensioner will deploy.

This DTC is set if there is abnormal resistance between the input terminals of the driver's seat belt pre-tensioner (squib).

1. Damaged wiring harnesses or connectors
2. Short to the power supply in the driver's seat belt pre-tensioner (squib) harness
3. Malfunction of the SRS-ECU

Required Special Tools

1. MB991958: Scan Tool (M.U.T.-III Sub Assembly) MB991824: V.C.I. MB991827: M.U.T.-III USB Cable MB991911: M.U.T.-III Main Harness B
2. MB991865: Dummy resister
3. MB991866: Resister harness (For Pre-tensioner)

Scheme 491

Scheme 492

Scheme 493

Scheme 494

Scheme 495

1. STEP 1. Check the driver's seat belt pre-tensioner (Using scan tool MB991958, read the diagnostic trouble code). Disconnect the negative battery terminal. Disconnect driver's seat belt pre-tensioner connector D-16. Use a flat-tipped screwdriver to unlock the locking button at the harness side connector by withdrawing it toward you in two stages, and then disconnect the connector. Connect special tool MB991865 to special tool MB991884. Connect special tool MB991884 to the D-16 harness connector. Connect the negative battery terminal. Erase the diagnostic trouble code memory, and check the diagnostic trouble code. Q: Is DTC 66 set? YES: Go to Step 2. NO: Replace the driver's seat belt with pre-tensioner (Refer to «SEAT BELTS WITH PRE-TENSIONER»(/mitsubishi/lancer-evolution/ix-2005-2007/remont/airbag/#supplemental-restraint-system-lancer-evolution) ). Then go to Step 4 .
2. STEP 2. Check the driver's seat belt pre-tensioner circuit at the SRS-ECU connector C-13. Disconnect SRS-ECU connector C-13. Disconnect driver's seat belt pre-tensioner connector D-16. Use a flat-tipped screwdriver to unlock the locking button at the harness side connector by withdrawing it toward you in two stages, and then disconnect the connector. Turn the ignition switch to the "ON" position. CAUTION: Do not insert a test probe into the terminal from its front side directly, as the connector contact pressure may be weakened. Measure the voltage between C-13 harness connector terminals 29, 30 and body ground. Voltage should measure 0 volt. Q: Is the measured voltage 0 volt? YES: Erase the diagnostic trouble code memory, and check the diagnostic trouble code. If DTC 65 set, replace the SRS-ECU (Refer to «SRS CONTROL UNIT (SRS-ECU)»(/mitsubishi/lancer-evolution/ix-2005-2007/remont/airbag/#supplemental-restraint-system-lancer-evolution) ). Then go to Step 4 . NO: Go to Step 3.
3. STEP 3. Check the harness wires for short circuit to power supply between SRS-ECU connector C-13 (terminal No.29 and 30) and driver's seat belt pre-tensioner connector D-16 (terminal No. 1 and 2). NOTE: After inspecting intermediate connector C-127 inspect the wiring harness. If the intermediate connector C-127 is damaged, repair or replace it. Refer to «HARNESS CONNECTOR INSPECTION»(/mitsubishi/lancer-evolution/ix-2005-2007/remont/body-electrical/#general-electrical-lancer-evolution) . Q: Are the harness wires between SRS-ECU connector C-13 (terminal No.29 and 30) and driver's seat belt pre-tensioner connector D-16 (terminal No.1 and 2) in good condition? YES: Go to Step 4. NO: Repair the harness wires between SRS-ECU connector C-13 and driver's seat belt pre-tensioner connector D-16. Then go to Step 4.
4. STEP 4. Recheck for diagnostic trouble code. Check again if the DTC is set. Erase the DTC. Turn the ignition switch to the "ON" position. Check if the DTC is set. Turn the ignition switch to the "LOCK" (OFF) position. Q: Is DTC 66 set? YES: Return to Step 1 . NO: The procedure is complete (If no malfunctions are found in all steps, an intermittent malfunction is suspected. Refer to «HOW TO COPE WITH INTERMITTENT MALFUNCTION»(/mitsubishi/lancer-evolution/ix-2005-2007/remont/hoistjack/#general-lancer-evolution__how-to-cope-with-intermittent-malfunctions) ).

Scheme 496

The SRS-ECU judges how severe a collision is by detecting signals from the front impact sensors and the front air bag analog G-sensor. If the impact is over a predetermined level, the SRS-ECU outputs an ignition signal. At this time, if the front air bag safing G-sensor is on, the seat belt pre-tensioner will deploy.

This DTC is set if there is abnormal resistance between the input terminals of the driver's seat belt pre-tensioner (squib).

1. Damaged wiring harnesses or connectors
2. Short to the ground in the driver's seat belt pre-tensioner (squib) harness
3. Malfunction of the SRS-ECU

Required Special Tools

1. MB991958: Scan Tool (M.U.T.-III Sub Assembly) MB991824: V.C.I. MB991827: M.U.T.-III USB Cable MB991911: M.U.T.-III Main Harness B
2. MB991865: Dummy resister
3. MB991866: Resister harness (For Pre-tensioner)

Scheme 497

Scheme 498

Scheme 499

Scheme 500

Scheme 501

1. STEP 1. Check the driver's seat belt pre-tensioner (Using scan tool MB991958, read the diagnostic trouble code). Disconnect the negative battery terminal. Disconnect driver's seat belt pre-tensioner connector D-16. Use a flat-tipped screwdriver to unlock the locking button at the harness side connector by withdrawing it toward you in two stages, and then disconnect the connector. Connect special tool MB991865 to special tool MB991884. Connect special tool MB991884 to the D-16 harness connector. Connect the negative battery terminal. Erase the diagnostic trouble code memory, and check the diagnostic trouble code. Q: Is DTC 67 set? YES: Go to Step 2. NO: Replace the driver's seat belt with pre-tensioner (Refer to «SEAT BELTS WITH PRE-TENSIONER»(/mitsubishi/lancer-evolution/ix-2005-2007/remont/airbag/#supplemental-restraint-system-lancer-evolution) ). Then go to Step 4 .
2. STEP 2. Check the driver's seat belt pre-tensioner circuit at the SRS-ECU connector C-13. Disconnect SRS-ECU connector C-13. Disconnect driver's seat belt pre-tensioner connector D-16. Use a flat-tipped screwdriver to unlock the locking button at the harness side connector by withdrawing it toward you in two stages, and then disconnect the connector. CAUTION: Do not insert a test probe into the terminal from its front side directly, as the connector contact pressure may be weakened. Check for continuity between C-13 harness connector terminals 29, 30 and body ground. It should be open circuit. Q: Does continuity exist? YES: Go to Step 3. NO: Erase the diagnostic trouble code memory, and check the diagnostic trouble code. If DTC 67 set, replace the SRS-ECU (Refer to «SRS CONTROL UNIT (SRS-ECU)»(/mitsubishi/lancer-evolution/ix-2005-2007/remont/airbag/#supplemental-restraint-system-lancer-evolution) ). Then go to Step 4 .
3. STEP 3. Check harness wires for short circuit to ground between SRS-ECU connector C-13 (terminal No.29 and 30) and driver's seat belt pre-tensioner connector D-16 (terminal No. 1 and 2). NOTE: After inspecting intermediate connector C-127, inspect the wiring harness. If the intermediate connector C-127 is damaged, repair or replace it. Refer to «HARNESS CONNECTOR INSPECTION»(/mitsubishi/lancer-evolution/ix-2005-2007/remont/body-electrical/#general-electrical-lancer-evolution) . Q: Are the harness wires between SRS-ECU connector C-13 (terminal No.29 and 30) and driver's seat belt pre-tensioner connector D-16 (terminal No. 1 and 2) in good condition? YES: Go to Step 4. NO: Repair the harness wires between SRS-ECU connector C-13 and driver's seat belt pre-tensioner connector D-16. Then go to Step 4.
4. STEP 4. Recheck for diagnostic trouble code. Check again if the DTC is set. Erase the DTC. Turn the ignition switch to the "ON" position. Check if the DTC is set. Turn the ignition switch to the "LOCK" (OFF) position. Q: Is DTC 67 set? YES: Return to Step 1 . NO: The procedure is complete (If no malfunctions are found in all steps, an intermittent malfunction is suspected. Refer to «HOW TO COPE WITH INTERMITTENT MALFUNCTION»(/mitsubishi/lancer-evolution/ix-2005-2007/remont/hoistjack/#general-lancer-evolution__how-to-cope-with-intermittent-malfunctions) ).

Scheme 502

The SRS-ECU judges how severe a collision is by detecting signals from the front impact sensors and the front air bag analog G-sensor. If the impact is over a predetermined level, the SRS-ECU outputs an ignition signal. At this time, if the front air bag safing G-sensor is on, the seat belt pre-tensioner will deploy.

This DTC is set if there is abnormal resistance between the input terminals of the passenger's (front) seat belt pre-tensioner (squib).

1. Damaged wiring harnesses or connectors
2. Short to the power supply in the passenger's (front) seat belt pre-tensioner (squib) harness
3. Malfunction of the SRS-ECU

Required Special Tools

1. MB991958: Scan Tool (M.U.T.-III Sub Assembly) MB991824: V.C.I. MB991827: M.U.T.-III USB Cable MB991911: M.U.T.-III Main Harness B
2. MB991865: Dummy resister
3. MB991866: Resister harness (For Pre-tensioner)

Scheme 503

Scheme 504

Scheme 505

Scheme 506

Scheme 507

1. STEP 1. Check the passenger's (front) seat belt pre-tensioner (Using scan tool MB991958, read the diagnostic trouble code). Disconnect the negative battery terminal. Disconnect passenger's (front) seat belt pre-tensioner connector D-03. Use a flat-tipped screwdriver to unlock the locking button at the harness side connector by withdrawing it toward you in two stages, and then disconnect the connector. Connect special tool MB991865 to special tool MB991884. Connect special tool MB991884 to the D-03 harness connector. Connect the negative battery terminal. Erase the diagnostic trouble code memory, and check the diagnostic trouble code. Q: Is DTC 68 set? YES: Go to Step 2. NO: Replace the passenger's seat belt with pre-tensioner (Refer to «SEAT BELTS WITH PRE-TENSIONER»(/mitsubishi/lancer-evolution/ix-2005-2007/remont/airbag/#supplemental-restraint-system-lancer-evolution) ). Then go to Step 4 .
2. STEP 2. Check the passenger's (front) seat belt pre-tensioner circuit at the SRS-ECU connector C-13. Disconnect SRS-ECU connector C-13. Disconnect passenger's (front) seat belt pre-tensioner connector D-03. Use a flat-tipped screwdriver to unlock the locking button at the harness side connector by withdrawing it toward you in two stages, and then disconnect the connector. Turn the ignition switch to the "ON" position, CAUTION: Do not insert a test probe into the terminal from its front side directly, as the connector contact pressure may be weakened. Measure the voltage between C-13 harness connector terminals 27, 28 and body ground. Voltage should measure 0 volt. Q: Is the circuit normal? YES: Erase the diagnostic trouble code memory, and check the diagnostic trouble code. If DTC 68 sets, replace the SRS-ECU (Refer to «SRS CONTROL UNIT (SRS-ECU)»(/mitsubishi/lancer-evolution/ix-2005-2007/remont/airbag/#supplemental-restraint-system-lancer-evolution) ). Then go to Step 4 . NO: Go to Step 3.
3. STEP 3. Check the harness wires for short circuit to power supply between SRS-ECU connector C-13 (terminal No.27 and 28) and passenger's (front) seat belt pre-tensioner connector D-03 (terminal No. 1 and 2). NOTE: After inspecting intermediate connector C-112 inspect the wiring harness. If the intermediate connector C-112 is damaged, repair or replace it. Refer to «HARNESS CONNECTOR INSPECTION»(/mitsubishi/lancer-evolution/ix-2005-2007/remont/body-electrical/#general-electrical-lancer-evolution) . Q: Are the harness wires between SRS-ECU connector C-13 (terminal No.27 and 28) and passenger's (front) seat belt pre-tensioner connector D-03 (terminal No.1 and 2) in good condition? YES: Go to Step 4. NO: Repair the harness wires between SRS-ECU connector C-13 and passenger's (front) seat belt pre-tensioner connector D-03. Then go to Step 4.
4. STEP 4. Recheck for diagnostic trouble code. Check again if the DTC is set. Erase the DTC. Turn the ignition switch to the "ON" position. Check if the DTC is set. Turn the ignition switch to the "LOCK" (OFF) position. Q: Is DTC 68 set? YES: Return to Step 1 . NO: The procedure is complete (If no malfunctions are found in all steps, an intermittent malfunction is suspected. Refer to «HOW TO COPE WITH INTERMITTENT MALFUNCTION»(/mitsubishi/lancer-evolution/ix-2005-2007/remont/hoistjack/#general-lancer-evolution__how-to-cope-with-intermittent-malfunctions) ).

Scheme 508

The SRS-ECU judges how severe a collision is by detecting signals from the front impact sensors and the front air bag analog G-sensor. If the impact is over a predetermined level, the SRS-ECU outputs an ignition signal. At this time, if the front air bag safing G-sensor is on, the seat belt pre-tensioner will deploy.

This DTC is set if there is abnormal resistance between the input terminals of the passenger's (front) seat belt pre-tensioner (squib).

1. Damaged wiring harnesses or connectors
2. Short to the ground in the passenger's (front) seat belt pre-tensioner (squib) harness
3. Malfunction of the SRS-ECU

Required Special Tools

1. MB991958: Scan Tool (M.U.T.-III Sub Assembly) MB991824: V.C.I. MB991827: M.U.T.-III USB Cable MB991911: M.U.T.-III Main Harness B
2. MB991865: Dummy resister
3. MB991866: Resister harness (For Pre-tensioner)

Scheme 509

Scheme 510

Scheme 511

Scheme 512

Scheme 513

1. STEP 1. Check the passenger's (front) seat belt pre-tensioner (Using scan tool MB991958, read the diagnostic trouble code). Disconnect the negative battery terminal. Disconnect passenger's (front) seat belt pre-tensioner connector D-03. Use a flat-tipped screwdriver to unlock the locking button at the harness side connector by withdrawing it toward you in two stages, and then disconnect the connector. Connect special tool MB991865 to special tool MB991884. Connect special tool MB991884 to the D-03 harness connector. Connect the negative battery terminal. Erase the diagnostic trouble code memory, and then check the diagnostic trouble code. Q: Is DTC 69 set? YES: Go to Step 2. NO: Replace the passenger's (front) seat belt with pre-tensioner (Refer to «SEAT BELTS WITH PRE-TENSIONER»(/mitsubishi/lancer-evolution/ix-2005-2007/remont/airbag/#supplemental-restraint-system-lancer-evolution) ). Then go to Step 3 .
2. STEP 2. Check the passenger's (front) seat belt pre-tensioner circuit at the SRS-ECU connector C-13. Disconnect SRS-ECU connector C-13. Disconnect passenger's (front) seat belt pre-tensioner connector D-03. Use a flat-tipped screwdriver to unlock the locking button at the harness side connector by withdrawing it toward you in two stages, and then disconnect the connector. CAUTION: Do not insert a test probe into the terminal from its front side directly, as the connector contact pressure may be weakened. Check for continuity between C-13 harness connector terminals 27, 28 and body ground. It should be open circuit. Q: Does continuity exist? YES: Go to Step 3. NO: Erase the diagnostic trouble code memory, and check the diagnostic trouble code. If DTC 69 sets, replace the SRS-ECU (Refer to «SRS CONTROL UNIT (SRS-ECU)»(/mitsubishi/lancer-evolution/ix-2005-2007/remont/airbag/#supplemental-restraint-system-lancer-evolution) ). Then go to Step 4 .
3. STEP 3. Check harness wires for short circuit to ground between SRS-ECU connector C-13 (terminal No.27 and 28) and passenger's (front) seat belt pre-tensioner connector D-03 (terminal No. 1 and 2). NOTE: After inspecting intermediate connector C-112 inspect the wiring harness. If the intermediate connector C-112 is damaged, repair or replace it. Refer to «HARNESS CONNECTOR INSPECTION»(/mitsubishi/lancer-evolution/ix-2005-2007/remont/body-electrical/#general-electrical-lancer-evolution) . Q: Are the harness wires between SRS-ECU connector C-13 (terminal No.27 and 28) and passenger's (front) seat belt pre-tensioner connector D-03 (terminal No. 1 and 2) in good condition? YES: Go to Step 4. NO: Repair the harness wires between SRS-ECU connector C-13 and passenger's (front) seat belt pre-tensioner connector D-03. Then go to Step 4.
4. STEP 4. Recheck for diagnostic trouble code. Check again if the DTC is set. Erase the DTC. Turn the ignition switch to the "ON" position. Check if the DTC is set. Turn the ignition switch to the "LOCK" (OFF) position. Q: Is DTC 69 set? YES: Return to Step 1 . NO: The procedure is complete (If no malfunctions are found in all steps, an intermittent malfunction is suspected. Refer to «HOW TO COPE WITH INTERMITTENT MALFUNCTION»(/mitsubishi/lancer-evolution/ix-2005-2007/remont/hoistjack/#general-lancer-evolution__how-to-cope-with-intermittent-malfunctions) ).

Scheme 514

1. The SRS-ECU is powered from the ignition switch (IG1).
2. The SRS-ECU power is supplied from two circuits. Even if one circuit is shut off, the air bag can inflate.
3. The SRS system diagnosis can be done by connecting scan tool MB991958 to the data link connector.

TECHNICAL DESCRIPTION (COMMENT)

If communication is not possible with the SRS only, the cause is probably an open circuit in the on-board diagnostic output circuit of the SRS or in the power circuit (including ground circuit).

1. Damaged wiring harnesses or connectors
2. Malfunction of the SRS-ECU

Scheme 515

Scheme 516

Scheme 517

Scheme 518

Scheme 519

Scheme 520

Scheme 521

Scheme 522

Scheme 523

1. STEP 1. Check that the scan tool can communicate with the other systems. Q: Can the scan tool communicate with the other systems? YES: Go to Step 2. NO: Refer to «INSPECTION PROCEDURE 1: COMMUNICATION WITH SCAN TOOL IS NOT POSSIBLE (COMMUNICATION WITH ALL SYSTEM IS NOT POSSIBLE)»(/mitsubishi/lancer-evolution/ix-2005-2007/remont/testing-diagnostics/#multiport-fuel-injection-mfi-lancer-evolution) .
2. STEP 2. Check the communication line between the SRS-ECU and the scan tool. Disconnect SRS-ECU connector C-12 and data link connector C-14 and measure at the wiring harness side. CAUTION: Do not insert a test probe into the terminal of the SRS-ECU connector C-12 from its front side directly as the connector contact pressure may be weakened. Check for continuity between the following terminals. SRS-ECU connector C-12 (terminal No.20) and date ling connector C-14 (terminal No.7) It should be less than 2 ohms. Q: Does continuity exist? YES: Go to Step 3. NO: Go to Step 5 .
3. STEP 3. Check the ground circuit to the SRS-ECU. Disconnect SRS-ECU connector C-12, and measure at the wiring harness side. CAUTION: Do not insert a test probe into the terminal from its front side directly, as the connector contact pressure may be weakened. Check for continuity between terminal 7 and body ground. It should be less than 2 ohms. Q: Does continuity exist? YES: Go to Step 4. NO: Go to Step 6 .
4. STEP 4. Check the power supply circuit to the SRS-ECU. Disconnect the negative battery terminal. Disconnect SRS-ECU connector C-12, and measure at the wiring harness side. Connect the negative battery terminal. Turn the ignition switch to the "ON" position. CAUTION: Do not insert a test probe into the terminal from its front side directly, as the connector contact pressure may be weakened. Measure the voltage between terminals 13, 16 and body ground. Voltage should measure 9 volts or more. Q: Is the measured voltage within the specified range? YES: Recheck the trouble symptom. If it is not solved, replace the SRS-ECU (Refer to «SRS CONTROL UNIT (SRS-ECU)»(/mitsubishi/lancer-evolution/ix-2005-2007/remont/airbag/#supplemental-restraint-system-lancer-evolution) ). Then go to Step 8 . NO: Go to Step 7 .
5. STEP 5. Check the harness wires between SRS-ECU connector C-12 (terminal No.20) and data link connector C-14 (terminal No.7). NOTE: After inspecting intermediate connector C-101, inspect the wiring harness. If the intermediate connector C-101, is damaged, repair or replace it. Refer to «HARNESS CONNECTOR INSPECTION»(/mitsubishi/lancer-evolution/ix-2005-2007/remont/body-electrical/#general-electrical-lancer-evolution) . Q: Are the harness wires between SRS-ECU connector C-12 (terminal No.20) and data link connector C-14 (terminal No.7) in good condition? YES: Go to step 8 . NO: Repair the harness wires between SRS-ECU connector C-12 and data link connector C-14. Then go to Step 8 .
6. STEP 6. Check the harness wire between SRS-ECU connector C-12 (terminal No.7) and ground. Q: Are the harness wire between SRS-ECU connector C-12 (terminal No.7) and ground in good condition? YES: Go to Step 8 . NO: Repair the harness wire between SRS-ECU connector C-12 and ground. Then go to Step 8 .
7. STEP 7. Check the harness wires between SRS-ECU connector C-12 (terminal No.13 and 16) and ignition switch connector C-208 (terminal No.2). NOTE: After inspecting intermediate connector C-214 and C-211, inspect the wiring harness. If the intermediate connector C-214 or C-211 is damaged, repair or replace it. Refer to «HARNESS CONNECTOR INSPECTION»(/mitsubishi/lancer-evolution/ix-2005-2007/remont/body-electrical/#general-electrical-lancer-evolution) . Q: Are the harness wires between SRS-ECU connector C-12 (terminal No. 13 and 16) and ignition switch connector C-208 (terminal No.2) in good condition? YES: Go to Step 8. NO: Repair the harness wires between SRS-ECU connector C-12 and ignition switch connector C-208. Then go to Step 8.
8. STEP 8. Retest the system. Q: Does the scan tool communicate normally with the SRS system? YES: The procedure is complete (If no malfunctions are found in all steps, an intermittent malfunction is suspected. Refer to «HOW TO COPE WITH INTERMITTENT MALFUNCTION»(/mitsubishi/lancer-evolution/ix-2005-2007/remont/hoistjack/#general-lancer-evolution__how-to-cope-with-intermittent-malfunctions) ). NO: There is no action to be taken.

SPECIAL TOOLS

SPECIAL TOOLS CHART TOOL TOOL NUMBER AND NAME SUPERSESSION APPLICATION MB990784 Ornament remover General service tool Removal of cover. MB991958 MB991824 MB991827 MB991910 MB991911 MB991914 MB991825 MB991826 Scan tool (M.U.T.-III sub assembly) Vehicle communication interface (V.C.I.) M.U.T.-III USB cable M.U.T.-III main harness A (Vehicles with CAN communication system) M.U.T.-III main harness B (Vehicles without CAN communication system) M.U.T.-III main harness C (for Daimler Chrysler models only) M.U.T.-III measurement adapter M.U.T.-III trigger harness MB991824-KIT NOTE: G: MB991826 M.U.T.-III trigger harness is not necessary when pushing V.C.I. ENTER key. Checking diagnostic trouble code CAUTION: M.U.T.-III main harness B (MB991911) should be used. M.U.T.-III main harness A and C should not be used for this vehicle. MB991865 Dummy resistor SRS air bag circuit check MB991866 Resistor harness MB991884 Resistor harness Resistor harness (For Pre-tensioner) Seat belt with pre-tensioner circuit check MB686560 SRS air bag adapter harness General service tool Deployment of passenger's (front) air bag module inside the vehicle Deployment of passenger's (front) air bag module MB991885 Adapter harness Pre-tensioner adapter harness Deployment of seat belt with pre-tensioner inside the vehicle Deployment of seat belt with pre-tensioner outside the vehicle MB991223 MB991219 MB991220 MB991221 MB991222 Harness set Test harness LED harness LED harness adapter Probe General service tools Checking the continuity and measuring the voltage at the SRS-ECU harness connector MB992006 Extra fine probe General service tool Continuity check and voltage measurement at harness wire or connector for loose, corroded or damaged terminals, or terminals pushed back in the connector

Scheme 524

Scheme 525

Scheme 526

Scheme 527

Scheme 528

Scheme 529

Scheme 530

Scheme 531

Scheme 532

Scheme 533

Scheme 534

Scheme 535

Scheme 536

Scheme 537

Scheme 538

TEST EQUIPMENT

TEST EQUIPMENT TOOL NAME USE Digital multi-meter Use a multi-meter for which the maximum test current is 2 mA or less at the minimum range of resistance measurement Checking the SRS electrical circuitry with SRS check harness

Scheme 539

POST-COLLISION DIAGNOSIS

To inspect and service the SRS after a collision (whether or not the air bags have deployed), perform the following steps.

SRS-ECU MEMORY CHECK

Required Special Tools

1. MB991958: Scan Tool (M.U.T.-III Sub Assembly) MB991824: V.C.I. MB991827: M.U.T.-III USB Cable MB991911: M.U.T.-III Main Harness B

1. Connect scan tool MB991958 to the data link connector (16-pin). NOTE: If the battery power supply has been disconnected or disrupted by the collision, scan tool MB991958 cannot communicate with the SRS-ECU. Check the battery then check and, if necessary, repair the front wiring harness and the instrument panel wiring harness before proceeding.
2. Read (and write down) all displayed DTC (Refer to «DIAGNOSTIC TROUBLE CODE CHART»(/mitsubishi/lancer-evolution/ix-2005-2007/remont/airbag/#supplemental-restraint-system-lancer-evolution__diagnostic-trouble-code-chart) ).
3. Read the data list (fault duration and how many times memories are erased) using scan tool MB991958. DATA LIST DATA LIST DTC No. DATA LIST ITEM APPLICABILITY 92 Number indicating how often the memory is cleared Maximum time to be stored: 250 times 93 How long a problem has lasted (How long it takes from the occurrence of the problem till the first air bag squib igniting signal.) Maximum time to be stored: 9,999 minutes (approximately 7 days) 94 How long a problem has lasted (how long it takes from the first air bag squib igniting signal till now.)
4. Erase DTC's and after waiting 5 seconds or more read (and write down) all displayed DTC's (Refer to «DIAGNOSTIC TROUBLE CODE CHART»(/mitsubishi/lancer-evolution/ix-2005-2007/remont/airbag/#supplemental-restraint-system-lancer-evolution__diagnostic-trouble-code-chart) ).

WHEN FRONT AIR BAGS DEPLOY IN A COLLISION.

1. Replace the following parts with new ones. Front impact sensor (Refer to «FRONT IMPACT SENSORS»(/mitsubishi/lancer-evolution/ix-2005-2007/remont/airbag/#supplemental-restraint-system-lancer-evolution) ). SRS-ECU (Refer to «SRS CONTROL UNIT (SRS-ECU)»(/mitsubishi/lancer-evolution/ix-2005-2007/remont/airbag/#supplemental-restraint-system-lancer-evolution) ). Air bag module (Refer to «AIR BAG MODULE(S) AND CLOCK SPRING»(/mitsubishi/lancer-evolution/ix-2005-2007/remont/airbag/#supplemental-restraint-system-lancer-evolution) ). Seat belt with pre-tensioner (Refer to «SEAT BELTS WITH PRE-TENSIONER»(/mitsubishi/lancer-evolution/ix-2005-2007/remont/airbag/#supplemental-restraint-system-lancer-evolution) ). Refer to «INSTRUMENT PANEL»(/mitsubishi/lancer-evolution/ix-2005-2007/remont/gauges-instrument-panels/#interior-lancer-evolution) ( ).
2. Check the following parts and replace if there are any malfunctions. Clock spring (Refer to «AIR BAG MODULE(S) AND CLOCK SPRING»(/mitsubishi/lancer-evolution/ix-2005-2007/remont/airbag/#supplemental-restraint-system-lancer-evolution) ). Steering wheel, steering column and shaft assembly Check the wiring harness (built into the steering wheel) and connectors for damage, and terminals for deformation. Install the air bag module to check fit or alignment with the steering wheel. Check the steering wheel for noise, binding or difficult operation and excessive free play. Check the steering column shaft shock absorbing mechanism (Refer to «STEERING COLUMN SHAFT ASSEMBLY SHOCK ABSORBING MECHANISM CHECK»(/mitsubishi/lancer-evolution/ix-2005-2007/remont/manual-power-steering/#power-steering-lancer-evolution__steering-column-shaft-assembly-shock-absorbing) ).
3. Check the wiring harnesses for binding, the connectors for damage, poor connections, and the terminals for deformation. (Refer to «SERVICE PRECAUTIONS»(/mitsubishi/lancer-evolution/ix-2005-2007/remont/airbag/#supplemental-restraint-system-lancer-evolution) ).

WHEN AIR BAGS DO NOT DEPLOY IN LOW-SPEED COLLISION.

Check the SRS components. If the SRS components are showing any visible damage such as dents, cracks, or deformation, replace them with new ones. Concerning parts removed for inspection, replacement with new parts and cautionary points for working, refer to appropriate INDIVIDUAL COMPONENT SERVICE .

Scheme 540

1. Check the radiator support panel for distortion and rust.
2. Check the front impact sensor for dents, cracks, deformation or rust.
3. Check the front impact sensor wiring harness for binding, check the connector for damage, and check the terminals for deformation.

Scheme 541

1. Check the SRS-ECU case and brackets for dents, cracks or deformation.
2. Check the connector for damage, and the terminals for deformation.
3. Check the fit of the SRS-ECU and its bracket.

Scheme 542

1. Check the pad cover for dents, cracks or deformation.
2. Check the connector for damage, terminals deformities, and the harness for binding.
3. Check the air bag inflator case for dents, cracks or deformities.
4. Install the air bag module (driver's side) to the steering wheel to check fit or alignment with the steering wheel.
5. Install the air bag module (front passenger's side) to the instrument panel and front deck crossmember to check fit or alignment.

Scheme 543

1. Check the clock spring connectors and protective tube for damage, and the terminals for deformation.
2. Visually check the case for damage.

STEERING WHEEL, STEERING COLUMN AND SHAFT ASSEMBLY

1. Check the wiring harness (built into the steering wheel) and the connectors for damage, and the terminals for deformation.
2. Install the driver's air bag module to check fit or alignment with the steering wheel.
3. Check the steering wheel for noise, binding or difficult operation and excessive free play.
4. Check the steering column shaft shock absorbing mechanism (Refer to «STEERING COLUMN SHAFT ASSEMBLY SHOCK ABSORBING MECHANISM CHECK»(/mitsubishi/lancer-evolution/ix-2005-2007/remont/manual-power-steering/#power-steering-lancer-evolution__steering-column-shaft-assembly-shock-absorbing) ).

SEAT BELT WITH PRE-TENSIONER

1. Check the seat belt for damage or deformation.
2. Check the seat belt with pre-tensioner for cracks or deformation.
3. Check that the unit is installed correctly to the vehicle body.

HARNESS CONNECTOR (FLOOR WIRING HARNESS)

Check the harnesses for binding, the connectors for damage, poor connection, and the terminals for deformation (Refer to SERVICE PRECAUTIONS ).

INDIVIDUAL COMPONENT SERVICE

If the SRS components are to be removed or replaced as a result of maintenance, diagnosis, etc., follow the appropriate procedure in this section (Front impact sensor: refer to FRONT IMPACT SENSORS , SRS-ECU: refer to SRS CONTROL UNIT (SRS-ECU) , Air Bag Modules and Clock Spring: refer to AIR BAG MODULE(S) AND CLOCK SPRING , Seat Belt with Pre-tensioner: refer to SEAT BELTS WITH PRE-TENSIONER ).

Scheme 544

Note. The illustration above shows the front impact sensor (LH). The position of the front impact sensor (RH) is symmetrical to this.

<< A >> NEGATIVE (-) BATTERY CABLE DISCONNECTION

Disconnect the negative (-) battery cable from the battery and tape the terminal to prevent accidental connection and air bag(s) deployment.

>> A << PRE-INSTALLATION INSPECTION

when the new front impact sensor refer to the previous item "INSPECTION."

>> B << FRONT IMPACT SENSOR INSTALLATION

1. Securely connect the connector.
2. Position the front impact sensor facing toward the front of the vehicle as shown by the arrow on the label, and install it securely.

Scheme 545

1. Connect the negative (-) battery cable.
2. Turn the ignition switch to "ON" position.
3. Does the SRS warning light illuminate for approximately seven seconds, and then goes out?
4. If yes, the SRS system is functioning properly. If no, consult page «SRS WARNING LIGHT CHECK»(/mitsubishi/lancer-evolution/ix-2005-2007/remont/airbag/#supplemental-restraint-system-lancer-evolution) .

INSPECTION

Scheme 546

Scheme 547

1. Check the front impact sensor for dents, cracks, deformation or rust. WARNING: If the resistance value shows the short-circuit or the open-circuit, be sure to replace the front impact sensor with a new one.
2. Check the short-circuit or the open-circuit between the front impact sensor terminals. When short-circuit: 2 ohm and less When open-circuit: 2 Mohms and over
3. Check for continuity between the terminal and the bracket. When there is continuity, it shows insufficient insulation of the sensor. Replace the sensor with a new one.
4. Check for deformation and rust on the radiator support panel.

Scheme 548

Disconnect the negative (-) battery cable from the battery and tape the terminal to prevent accidental connection and deployment.

>> A << SRS-ECU INSTALLATION

Scheme 549

1. Connect the negative (-) battery cable.
2. Turn the ignition switch to the "ON" position.
3. Does the SRS warning light illuminate for approximately seven seconds, and then goes out?
4. If yes, the SRS system is functioning properly. If no, refer to «SRS WARNING LIGHT CHECK»(/mitsubishi/lancer-evolution/ix-2005-2007/remont/airbag/#supplemental-restraint-system-lancer-evolution) .

1. Check the SRS-ECU and brackets for dents, cracks or deformation.
2. Check the SRS-ECU connector for damage, and the terminals for deformation.

Note. Refer to TROUBLE SYMPTOM CHART for inspection of SRS-ECU for other than physical damage.

REMOVAL AND INSTALLATION

Scheme 550

Required Special Tools

1. MB991958: Scan Tool (M.U.T.-III Sub Assembly) MB991824: V.C.I. MB991827: M.U.T.-III USB Cable MB991911: M.U.T.-III Main Harness B MB992006: Extra Fine Probe MB990784: Ornament remover

Scheme 551

Required Special Tools

1. MB991958: Scan Tool (M.U.T.-III Sub Assembly) MB991824: V.C.I. MB991827: M.U.T.-III USB Cable MB991911: M.U.T.-III Main Harness B

Disconnect the negative (-) battery cable from the battery and tape the terminal to prevent accidental connection and air bag(s) deployment.

<< B >> COVER REMOVAL

Insert the special tool MB990784 as shown in the illustration to remove the cover.

Scheme 552

<< C >> STEERING WHEEL-DRIVER'S AIR BAG MODULE ASSEMBLY REMOVAL

Scheme 553

Scheme 554

1. By sliding the A section (in the figure) of the driver's air bag module connector in the arrow direction, disconnect the connector.
2. Insert the hexagonal bit socket into the arrow section in the figure. Completely loosen the bolt, and then remove the steering wheel air bag module assembly. NOTE: Use a hexagonal bit socket or a hexagonal wrench having an effective length of 75 mm (3.0 inches) or more in the hexagonal section and diameter of 8 mm (0.3 inch) or more.

<< D >> CLOCK SPRING REMOVAL

<< E >> PASSENGER'S (FRONT) AIR BAG MODULE REMOVAL

Insert the screwdriver (-) into the position specified in the figure and lift the screwdriver upward to release the pawls engaged, and then remove the passenger's (front) air bag module.

Scheme 555

1. When installing the new air bag modules and clock spring, refer to " «INSPECTION»(/mitsubishi/lancer-evolution/ix-2005-2007/remont/airbag/#supplemental-restraint-system-lancer-evolution) " .
2. Connect the negative (-) battery cable. CAUTION: To prevent damage to scan tool MB991958, always turn the ignition, switch to the "LOCK" (OFF) position before connecting or disconnecting scan tool MB991958.
3. Connect scan tool MB991958 to the data link connector.
4. Turn the ignition switch to the "ON" position.
5. Check DTCs using scan tool MB991958 to ensure entire SRS operates properly. Confirm that no DTCs other than 24 and 21 are set. WARNING: Wait at least 60 seconds after disconnecting the battery cable before doing any further work (Refer to «SERVICE PRECAUTIONS»(/mitsubishi/lancer-evolution/ix-2005-2007/remont/airbag/#supplemental-restraint-system-lancer-evolution) ). WARNING: Battery posts, terminals and related accessories contain lead and lead compounds. WASH HANDS AFTER HANDLING.
6. Turn the ignition switch to the "LOCK" (OFF) position. Disconnect the negative (-) battery cable and tape the terminal to prevent accidental connection and air bags deployment.

>> B << CLOCK SPRING INSTALLATION

Scheme 556

1. Align the mating marks of the clock spring. < Mating Mark Alignment > Turn the clock spring clockwise fully. Then turn it back approximately 3-3/4 turns counterclockwise to align the mating marks.
2. Turn the front wheels to the straight-ahead position. Then install the clock spring to the column switch.

>> C << STEERING WHEEL-DRIVER'S AIR BAG MODULE ASSEMBLY INSTALLATION

1. Before installing the steering wheel-driver's air bag module turn the vehicle's front wheels to the straight-ahead position and align the mating marks of the clock spring.
2. After securing the steering wheel, turn the steering wheel all the way in both directions to confirm that the steering wheel rotation is normal.

Scheme 557

1. Connect the negative (-) battery cable.
2. Turn the ignition switch to "ON" position.
3. Does the "SRS" warning light illuminate for approximately seven seconds, and goes out?
4. If yes, the SRS system is functioning properly. If no, refer to «SRS WARNING LIGHT CHECK»(/mitsubishi/lancer-evolution/ix-2005-2007/remont/airbag/#supplemental-restraint-system-lancer-evolution) .

AIR BAG MODULE CHECK

Scheme 558

1. Check the pad cover for dents, cracks or deformation.
2. Check the connectors for damage, the terminals for deformation, and the harness for binds.
3. Check the air bag inflator case for dents, cracks or deformation.
4. Install the driver's air bag module to the steering wheel and check fit and alignment with the wheel.
5. Install the passenger's (front) air bag module to the instrument panel and front deck crossmember and check fit and alignment.

CLOCK SPRING CHECK

If any malfunction is found in the following inspections, replace the clock spring with a new one.

Scheme 559

Scheme 560

1. Check the connectors and protective tube for damage, and the terminals for deformation.
2. Visually check the case for damage.
3. Check to see that there is a charge (continuity) between the C-204 clock spring connector terminal and C-203 horn switch. CAUTION: Do not directly insert a probe, etc. into the terminal from the front of the connector.
4. Insert the special tool (MB992006) from behind the driver's air bag module connector of the C-201 driver's seat.
5. As shown in the Figure, connect the circuit tester to the special tool (MB992006) and check to see that there is a charge between the terminals.

Scheme 561

Required Special Tools

1. MB991958: Scan Tool (M.U.T.-III Sub Assembly) MB991824: V.C.I. MB991827: M.U.T.-III USB Cable MB991911: M.U.T.-III Main Harness B

Disconnect the negative (-) battery cable from the battery and tape the terminal to prevent accidental connection and seat belt pre-tensioner operation.

Scheme 562

1. Use a flat-tipped screwdriver to unlock the locking button at the harness side connector by withdrawing it toward you in two stages.
2. Disconnect the pretensioner connector.

1. When installing the new seat belt pre-tensioner, refer to "INSPECTION" (Refer to «AIR BAG MODULE AND SEAT BELT PRE-TENSIONER DISPOSAL PROCEDURES»(/mitsubishi/lancer-evolution/ix-2005-2007/remont/airbag/#supplemental-restraint-system-lancer-evolution__air-bag-module-and-seat-belt) ).
2. Connect the negative (-) battery cable. CAUTION: To prevent damage to scan tool MB991958, always turn the ignition, switch to the "LOCK" (OFF) position before connecting or disconnecting scan tool MB991958.
3. Connect scan tool MB991958 to the data link connector.
4. Turn the ignition switch to the "ON" position.
5. Check DTCs using scan tool MB991958 to ensure entire SRS operates properly. Confirm that no DTCs other than 26 and 28 are set. WARNING: Wait at least 60 seconds after disconnecting the battery cable before doing any further work (Refer to «SERVICE PRECAUTIONS»(/mitsubishi/lancer-evolution/ix-2005-2007/remont/airbag/#supplemental-restraint-system-lancer-evolution) ). WARNING: Battery posts, terminals and related accessories contain lead and lead compounds. WASH HANDS AFTER HANDLING.
6. Turn the ignition switch to the "LOCK" (OFF) position. Disconnect the negative (-) battery cable and tape the terminal to prevent accidental connection and seat belt pre-tensioner operation.

>> B << PRE-TENSIONER CONNECTOR CONNECTION

Connect the pretensioner connector, then securely lock the locking button of the harness-side connector.

Scheme 563

1. Connect the negative (-) battery cable.
2. Turn the ignition switch to the "ON" position.
3. Does the SRS warning light illuminate for approximately seven seconds, and goes out?
4. If yes, the SRS system is functioning properly. If no, refer to «SRS WARNING LIGHT CHECK»(/mitsubishi/lancer-evolution/ix-2005-2007/remont/airbag/#supplemental-restraint-system-lancer-evolution) .

SEAT BELT WITH PRE-TENSIONER CHECK

1. Check seat belt pre-tensioner for dents, cracks or deformation.
2. Check the connectors for damage, the terminals for deformation, and the harness for binding.

AIR BAG MODULE AND SEAT BELT PRE-TENSIONER DISPOSAL PROCEDURES

Before disposing of an air bag or a vehicle equipped with an air bag, follow the procedures below to deploy the air bag.

UNDEPLOYED AIR BAG MODULE DISPOSAL

Required Special Tools

1. MB686560: SRS Air Bag Adapter Harness
2. MB991885: Adapter Harness (For pre-tensioner)

Scheme 564

Scheme 565

Scheme 566

Scheme 567

1. Move the vehicle to an isolated spot. WARNING: Wait at least 60 seconds after disconnecting the battery cables before doing any further work (Refer to «SERVICE PRECAUTIONS»(/mitsubishi/lancer-evolution/ix-2005-2007/remont/airbag/#supplemental-restraint-system-lancer-evolution) ). WARNING: Battery posts, terminals and related accessories contain lead and lead compounds. WASH HANDS AFTER HANDLING.
2. Disconnect the negative (-) and positive (+) battery cables from the battery terminals, and then remove the battery from the vehicle.
3. Remove the steering column cover lower (Refer to «INSTRUMENT PANEL»(/mitsubishi/lancer-evolution/ix-2005-2007/remont/gauges-instrument-panels/#interior-lancer-evolution) ).
4. Remove the connection between the C-205 clock spring connector (four-pin) and the harness side connector (four-pin, yellow). NOTE: If the clock spring connector is disconnected from the instrument panel wiring harness, both electrodes of the clock spring connector will be automatically shorted to prevent unintended deployment of the air bag due to static electricity, etc.
5. Obtain two suitable wires, which are 6 meters (20 feet) or longer, as deployment wires. Then connect the wires at one end to short. NOTE: This prevents the air bag from unintentional deployment caused by static electricity, etc.
6. Cut with a nipper, etc. the instrument panel wiring harness shown in the Figure of the instructions, while the C-205 clock spring connector is disconnected. NOTE: The disconnection location should be sufficiently away from the C-205 harness side connector with consideration to the expansion harness connection location upon disconnections.
7. Individually connect a harness on the two harnesses disconnected, cover the connection areas with insulator tape and then pull out the expansion harness outside the vehicle.
8. Connect the C-205 harness side connector connected with an expansion harness to the C-205 clock spring connector. WARNING: If the glass is scratched, air bag deployment could cause it to crack and fly out of the vehicle, so always put a cover over the vehicle.
9. To suppress the operation sound as much as possible completely close all door windows, close the doors and put the cover on the vehicle. WARNING: Before deploying the air bag in this manner, first check to be sure that there is no one in or near the vehicle. Wear safety glasses. The inflator will be quite hot immediately following the deployment, so wait at least 30 minutes to allow it to cool before attempting to handle it. Although not poisonous, do not inhale gas from the air bag deployment. See Deployed Air Bag Module Disposal (Refer to «DEPLOYED AIR BAG MODULE AND OPERATED SEAT BELT PRE-TENSIONER DISPOSAL»(/mitsubishi/lancer-evolution/ix-2005-2007/remont/airbag/#supplemental-restraint-system-lancer-evolution__deployed-air-bag-module-and-operated) ) for post-deployment handling instructions. If the air bag module fails to deploy, do not go near the module.
10. At a location as far away from the vehicle as possible, disconnect the two connected wires from each other, and connect them to the two terminals of the battery (which has been removed from the vehicle) to deploy the air bag.
11. After deployment, dispose of the air bag module according to the Deployed Air Bag Module and Operated Seat Belt Pre-tensioner Disposal (Refer to «DEPLOYED AIR BAG MODULE AND OPERATED SEAT BELT PRE-TENSIONER DISPOSAL»(/mitsubishi/lancer-evolution/ix-2005-2007/remont/airbag/#supplemental-restraint-system-lancer-evolution__deployed-air-bag-module-and-operated) ).

Scheme 568

Scheme 569

Scheme 570

Scheme 571

1. Move the vehicle to an isolated spot. WARNING: Wait at least 60 seconds after disconnecting the battery cables before doing any further work (Refer to «SERVICE PRECAUTIONS»(/mitsubishi/lancer-evolution/ix-2005-2007/remont/airbag/#supplemental-restraint-system-lancer-evolution) ). WARNING: Battery posts, terminals and related accessories contain lead and lead compounds. WASH HANDS AFTER HANDLING.
2. Disconnect the negative (-) and positive (+) battery cables from the battery terminals, and then remove the battery from the vehicle.
3. Remove the glove box (Refer to «INSTRUMENT PANEL»(/mitsubishi/lancer-evolution/ix-2005-2007/remont/gauges-instrument-panels/#interior-lancer-evolution) ).
4. Remove the connection between the C-106 passenger's (front) air bag module connector (two-pin, red) and the instrument panel wiring harness connector (two-pin, red). NOTE: If the air bag module connector is disconnected from the instrument panel wiring harness, both electrodes of the air bag module connector will be automatically shorted to prevent unintended deployment of the air bag due to static electricity, etc.
5. Connect deployment wires, each 6 meters (20 feet) or longer, to the two leads of special tool MB686560, and cover the connections with insulator tape. The other ends of the deployment wires should be connected to each other (short-circuited), to prevent sudden unexpected deployment of the air bag module.
6. Connect the C-106 passenger's (front) air bag module connector (two-pin, red) to special tool MB686560 and move the deployment wires out of the vehicle. WARNING: If the glass is scratched, air bag deployment could cause it to crack and fly out of the vehicle, so always put a cover over the vehicle.
7. To suppress the operation sound as much as possible completely close all door windows, close the doors and put the cover on the vehicle. WARNING: Before deploying the air bag in this manner, first check to be sure that there is no one in or near the vehicle. Wear safety glasses. The inflator will be quite hot immediately following the deployment, so wait at least 30 minutes to allow it to cool before attempting to handle it. Although not poisonous, do not inhale gas from the air bag deployment. See Deployed Air Bag Module Disposal (Refer to «DEPLOYED AIR BAG MODULE AND OPERATED SEAT BELT PRE-TENSIONER DISPOSAL»(/mitsubishi/lancer-evolution/ix-2005-2007/remont/airbag/#supplemental-restraint-system-lancer-evolution__deployed-air-bag-module-and-operated) ) for post-deployment handling instructions. If the air bag module fails to deploy, do not go near the module.
8. At a location as far away from the vehicle as possible, disconnect the two connected wires from each other, and connect them to the two terminals of the battery (which has been removed from the vehicle) to deploy the air bag.
9. After deployment, dispose of the air bag module according to the Deployed Air Bag Module and Operated Seat Belt Pre-tensioner Disposal (Refer to «DEPLOYED AIR BAG MODULE AND OPERATED SEAT BELT PRE-TENSIONER DISPOSAL»(/mitsubishi/lancer-evolution/ix-2005-2007/remont/airbag/#supplemental-restraint-system-lancer-evolution__deployed-air-bag-module-and-operated) ).

Scheme 572

Scheme 573

Scheme 574

Scheme 575

Scheme 576

1. Move the vehicle to an isolated spot. WARNING: Wait at least 60 seconds after disconnecting the battery cables before doing any further work (Refer to «SERVICE PRECAUTIONS»(/mitsubishi/lancer-evolution/ix-2005-2007/remont/airbag/#supplemental-restraint-system-lancer-evolution) ). WARNING: Battery posts, terminals and related accessories contain lead and lead compounds. WASH HANDS AFTER HANDLING.
2. Disconnect the negative (-) and positive (+) battery cables from the battery terminals, and then remove the battery from the vehicle.
3. Remove the center pillar lower trim (Refer to «TRIMS»(/mitsubishi/lancer-evolution/ix-2005-2007/remont/gauges-instrument-panels/#interior-lancer-evolution) ).
4. Execute the following steps to disconnect the connection between D-03 or D-16 seat belt pre-tensioner connector (two-pin) and harness side connector (two-pin, black). NOTE: If the seat belt pre-tensioner connector is disconnected from the floor wiring harness, both electrodes of the seat belt pre-tensioner connector will be automatically shorted to prevent unintended operation of the seat belt pre-tensioner due to static electricity, etc. Use a flat-tipped screwdriver to unlock the locking button at the harness side connector (two-pin, black) by withdrawing it toward you in two stages. Disconnect the D-03 or D-16 harness side connector.
5. Connect deployment wires, each 6 meters (20 feet) or longer, to the two leads of special tool MB991885, and cover the connections with insulator tape. The other ends of the deployment wires should be connected to each other (short-circuited), to prevent sudden unexpected operation of the seat belt pre-tensioner.
6. Connect the D-03 or D-16 seat belt pre-tensioner two-pin connector to special tool MB686560 and move the deployment wires out of the vehicle. WARNING: If the glass is scratched, seat belt pre-tensioner operation could cause it to crack and fly out of the vehicle, so always put a cover over the vehicle.
7. To suppress the operation sound as much as possible completely close all door windows, close the doors and put the cover on the vehicle. WARNING: Before operating the seat belt pre-tensioner in this manner, first check to be sure that there is no one in or near the vehicle. Wear safety glasses. The inflator will be quite hot immediately following the operation, so wait at least 30 minutes to allow it to cool before attempting to handle it. Although not poisonous, do not inhale gas from the seat belt pre-tensioner operation. See Deployed Air Bag and Operated Seat Belt pre-tensioner Disposal (Refer to «DEPLOYED AIR BAG MODULE AND OPERATED SEAT BELT PRE-TENSIONER DISPOSAL»(/mitsubishi/lancer-evolution/ix-2005-2007/remont/airbag/#supplemental-restraint-system-lancer-evolution__deployed-air-bag-module-and-operated) ) for post-operation handling instructions. If the seat belt pre-tensioner fails to operate, do not go near the seat belt pre-tensioner.
8. At a location as far away from the vehicle as possible, disconnect the two connected wires from each other, and connect them to the two terminals of the battery (which has been removed from the vehicle) to operate the seat belt pre-tensioner.
9. After operation, dispose of the seat belt pre-tensioner according to the Deployed Air Bag Module and Operated Seat Belt Pre-tensioner Disposal (Refer to «DEPLOYED AIR BAG MODULE AND OPERATED SEAT BELT PRE-TENSIONER DISPOSAL»(/mitsubishi/lancer-evolution/ix-2005-2007/remont/airbag/#supplemental-restraint-system-lancer-evolution__deployed-air-bag-module-and-operated) ).

DEPLOYMENT OUTSIDE THE VEHICLE < DRIVER'S AIR BAG MODULE >

Scheme 577

Scheme 578

Scheme 579

Scheme 580

Scheme 581

1. Disconnect the negative (-) and positive (+) battery cables from the battery terminals, and then remove the battery from the vehicle. CAUTION: Once disconnected, both electrodes of the steering wheel-driver's air bag module connector short automatically to prevent accidental deployment caused by static etc. Still, in consideration of the accidental deployment, store the steering wheel-driver's air bag module on flat place with deployment surface facing up. Also, do not put anything on it.
2. Remove the steering wheel-driver's air bag module assembly from the vehicle (Refer to «AIR BAG MODULE(S) AND CLOCK SPRING»(/mitsubishi/lancer-evolution/ix-2005-2007/remont/airbag/#supplemental-restraint-system-lancer-evolution) ).
3. Prepare two wires longer than 6 meters (20 feet) for deployment and connect the terminals in one end to short-circuit. This is to prevent accidental deployment caused by static etc. CAUTION: Never fail to do Step 4 in order to prevent accidental deployment caused by static.
4. Touch the vehicle's body with bare hands to discharge static in you.
5. Release the secured connector of the steering wheel-driver's air bag module assembly to cut off the connector from the harness with a nipper and etc. Connect deployment harnesses to each of two separated harnesses and cover the area with insulator tape.
6. Use a rope to tie the steering wheel-driver's air bag module assembly to secure old tires with wheels.
7. Route the deployment harness connected to steering wheel-driver's air bag module beneath old tires with wheels. Then, secure the steering wheel-driver's air bag module assembly with the deployment surface facing up.
8. Place three old tires without wheels on the tire secured with the steering wheel-driver's air bag module. WARNING: Before deployment, check carefully to be sure that no one is nearby. The inflator will be quite hot immediately following the deployment, so wait at least 30 minutes to allow it to cool before attempting to handle it. Although not poisonous, do not inhale gas from air bag deployment. See Deployed Air Bag Module Disposal and Operated Seat Belt Pre-tensioner (Refer to «DEPLOYED AIR BAG MODULE AND OPERATED SEAT BELT PRE-TENSIONER DISPOSAL»(/mitsubishi/lancer-evolution/ix-2005-2007/remont/airbag/#supplemental-restraint-system-lancer-evolution__deployed-air-bag-module-and-operated) ) for post-deployment handling instructions. If the air bag fails to deploy, do not go near the module.
9. At a location as far away from the air bag module as possible, and from a shielded position, disconnect the two connected wires from each other, and connect them, to the two terminals of the battery (which has been removed from the vehicle) to deploy the air bag.
10. Discard the deployed air bag module as specified in Deployed Air Bag Module and Operated Seat Belt Pre-tensioner Disposal (Refer to «DEPLOYED AIR BAG MODULE AND OPERATED SEAT BELT PRE-TENSIONER DISPOSAL»(/mitsubishi/lancer-evolution/ix-2005-2007/remont/airbag/#supplemental-restraint-system-lancer-evolution__deployed-air-bag-module-and-operated) ).

DEPLOYMENT OUTSIDE THE VEHICLE < PASSENGER'S (FRONT) AIR BAG MODULE >

Scheme 582

Scheme 583

Scheme 584

Scheme 585

1. Disconnect the negative (-) and positive (+) battery cables from the battery terminals, and then remove the battery from the vehicle. CAUTION: Once disconnected, both electrodes of the front passenger's (front) air bag module connector short automatically to prevent accidental deployment caused by static etc. Still, in consideration of the accidental deployment, store the air bag module on flat place with deployment surface facing up. Also, do not put anything on it.
2. Remove the passenger's (front) air bag module from the vehicle (Refer to «AIR BAG MODULE(S) AND CLOCK SPRING»(/mitsubishi/lancer-evolution/ix-2005-2007/remont/airbag/#supplemental-restraint-system-lancer-evolution) ).
3. Connect two wires, each 6 meters (20 feet) or longer, to the two leads of special tool MB686560, and cover the connections with insulator tape. The other ends of the two wires should be connected to each other (short-circuited), to prevent sudden unexpected deployment of the passenger's (front) air bag module.
4. Connect the deployment wires to special tool MB686560, pass it beneath the tire and wheel assembly, and connect it to the passenger's (front) air bag module. CAUTION: The adapter harness below the wheel should be loose. If it is too tight, the reaction when the air bag deploys could damage the adapter harness. During deployment, the connector of special tool MB686560 must not be between the tires.
5. Pass the thick wire through the passenger's (front) air bag module mounting hole, and then secure the passenger's (front) air bag module to an old tire with a wheel in it so that the pad on the module is facing upwards.
6. Place three old tires without wheels on top of the tire secured to the passenger's (front) air bag module, and secure all tires together with ropes (four locations). WARNING: Before deployment, check carefully to be sure that no one is nearby. The inflator will be quite hot immediately following the deployment, so wait at least 30 minutes to allow it to cool before attempting to handle it. Although not poisonous, do not inhale gas from air bag deployment. See Deployed Air Bag Module Disposal and Operated Seat Belt Pre-tensioner (Refer to «DEPLOYED AIR BAG MODULE AND OPERATED SEAT BELT PRE-TENSIONER DISPOSAL»(/mitsubishi/lancer-evolution/ix-2005-2007/remont/airbag/#supplemental-restraint-system-lancer-evolution__deployed-air-bag-module-and-operated) ) for post-deployment handling instructions. If the air bag fails to deploy, do not go near the module.
7. At a location as far away from the air bag module as possible, and from a shielded position, disconnect the two connected wires from each other, and connect them to the two terminals of the battery (which has been removed from the vehicle) to deploy the air bag.
8. Discard the deployed air bag module as specified in Deployed Air Bag Module and Operated Seat Belt Pre-tensioner Disposal (Refer to «DEPLOYED AIR BAG MODULE AND OPERATED SEAT BELT PRE-TENSIONER DISPOSAL»(/mitsubishi/lancer-evolution/ix-2005-2007/remont/airbag/#supplemental-restraint-system-lancer-evolution__deployed-air-bag-module-and-operated) ).

DEPLOYMENT OUTSIDE THE VEHICLE < SEAT BELT PRE-TENSIONER >

Scheme 586

Scheme 587

Scheme 588

Scheme 589

1. Disconnect the negative (-) and positive (+) battery cables from the battery terminals, and then remove the battery from the vehicle. WARNING: Store the operated seat belt pre-tensioner the correct way up with its operation surface uppermost on a flat surface. Do not place anything on top of them.
2. Remove the seat belt with pre-tensioner from the vehicle (Refer to «SEAT BELTS WITH PRE-TENSIONER»(/mitsubishi/lancer-evolution/ix-2005-2007/remont/airbag/#supplemental-restraint-system-lancer-evolution) ).
3. Use a flat-tipped screwdriver to unlock the locking button at the harness side connector (two-pin, black) by with drawing it toward you in two stages.
4. Disconnect the D-03 or D-16 harness side connector.
5. Connect two wires, each 6 meters (20 feet) or longer, to the two leads of special tool MB991885, and cover the connections with insulation tape. The other ends of the two wires should be connected to each other (short-circuited), to prevent sudden unexpected operation of the seat belt pre-tensioner.
6. Connect the special tool MB991885, which the deployment wires is attached to, to the seat belt pre-tensioner connector. CAUTION: The adapter harness below the wheel should be loose. If it is too tight, the reaction when the seat belt pre-tensioner operates could damage the adapter harness.
7. Pass the thick wires through the hole on the seat belt pre-tensioner bracket and secure them to the front (raised part) of the wheel on two place.
8. Pull the seat belt out the outside of the tire, and then place one tire without a wheel inside on top of the existing tire. WARNING: Before operation, check carefully to be sure that no one is nearby. The inflator will be quite hot immediately following the operation, so wait at least 30 minutes to allow it to cool before attempting to handle it. Although not poisonous, do not inhale gas from seat belt pre-tensioner operation. See Deployed Air Bag Module and Operated Seat Belt pre-tensioner Disposal (Refer to «DEPLOYED AIR BAG MODULE AND OPERATED SEAT BELT PRE-TENSIONER DISPOSAL»(/mitsubishi/lancer-evolution/ix-2005-2007/remont/airbag/#supplemental-restraint-system-lancer-evolution__deployed-air-bag-module-and-operated) ) for post-operation handling instructions. If the seat belt pre-tensioner fails to operate, do not go near the seat belt pre-tensioner.
9. At a location as far away from the pre-tensioner as possible, and from a shielded position, disconnect the two connected wires from each other, and connect them to the two terminals of the battery (which has been removed from the vehicle) to operated seat belt pre-tensioner.
10. Discard the operated seat belt pre-tensioner as specified in Deployed Air Bag Module and Operated Seat Belt pre-tensioner Disposal (Refer to «DEPLOYED AIR BAG MODULE AND OPERATED SEAT BELT PRE-TENSIONER DISPOSAL»(/mitsubishi/lancer-evolution/ix-2005-2007/remont/airbag/#supplemental-restraint-system-lancer-evolution__deployed-air-bag-module-and-operated) ).

DEPLOYED AIR BAG MODULE AND OPERATED SEAT BELT PRE-TENSIONER DISPOSAL

After deployment and operation, the air bag module and seat belt pre-tensioner should be disposed of in the same manner as any other scrap parts, adhering to local laws and/or legislation. Observe the following precautions during air bag or seat belt pre-tensioner disposal

Scheme 590

1. The inflator will be quite hot immediately following deployment, so wait at least 30 minutes to allow it cool before attempting to handle it.
2. Do not put water or oil on the air bag after deployment or on the seat belt pre-tensioner after operation. WARNING: If after following these precautions, any material does get into the eyes or on the skin, immediately rinse the affected area with a large amount of clean water. If any irritation develops, seek medical attention.
3. There may be material on the deployed air bag module or the operated seat belt pre-tensioner, that could irritate the eye and/or skin. Wear gloves and safety glasses when handling a deployed air bag module or the operated seat belt pre-tensioner.
4. Tightly seal the air bag module and seat belt pre-tensioner in a strong plastic bag for disposal.
5. Be sure to always wash your hands after completing this operation.

FASTENER TIGHTENING SPECIFICATIONS

FASTENER TIGHTENING SPECIFICATIONS

See also:
• HOW TO COPE WITH INTERMITTENT MALFUNCTIONS
• INSPECTION PROCEDURE 1: COMMUNICATION WITH SCAN TOOL IS NOT POSSIBLE (COMMUNICATION WITH ALL SYSTEM IS NOT POSSIBLE)
• HARNESS CONNECTOR INSPECTION
• COMBINATION METERS ASSEMBLY
• INSTRUMENT PANEL
• STEERING COLUMN SHAFT ASSEMBLY SHOCK ABSORBING MECHANISM CHECK
• SCHEMATIC
• CIRCUIT DIAGRAM
• SPECIAL TOOLS
• TEST EQUIPMENT
• INDIVIDUAL COMPONENT SERVICE
• GENERAL DESCRIPTION
• POST-COLLISION DIAGNOSIS
• >> B << FRONT IMPACT SENSOR INSTALLATION
• DIAGNOSTIC TROUBLE CODE CHART
• TROUBLE SYMPTOM CHART
• AIR BAG MODULE AND SEAT BELT PRE-TENSIONER DISPOSAL PROCEDURES
• DEPLOYED AIR BAG MODULE AND OPERATED SEAT BELT PRE-TENSIONER DISPOSAL