Accessory Socket: Diagnosis Mitsubishi Outlander III

STANDARD FLOW OF DIAGNOSTIC TROUBLESHOOTING

Refer to CONTENTS OF TROUBLESHOOTING .

HOW TO CONNECT THE SCAN TOOL (M.U.T.-III)

Required Special Tools

MB991958: Scan Tool (M.U.T.-III Sub Assembly)

1. MB991824: Vehicle Communication Interface (V.C.I.)
2. MB991827: M.U.T.-III USB Cable
3. MB991910: M.U.T.-III Main Harness A (Vehicles with CAN communication system)

Scheme 1

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 MB991910 to special tool MB991824.
5. Connect special tool MB991910 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

MB991958: Scan Tool (M.U.T.-III Sub Assembly)

1. MB991824: Vehicle Communication Interface (V.C.I.)
2. MB991827: M.U.T.-III USB Cable
3. MB991910: M.U.T.-III Main Harness A (Vehicles with CAN communication system)

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 "System select" from the start-up screen.
4. Select "From 2006 MY" of "Model Year." When the "Vehicle Information" is displayed, check the contents.
5. Select "ETACS" from "System List", and press the "OK" button. NOTE: When the "Loading Option Setup" list is displayed, check the applicable item.
6. Select "Diagnostic Trouble Code." to read the DTC.
7. If a DTC is set, it is shown.
8. Choose "Erase DTCs" to erase the DTC.

TROUBLE SYMPTOM CHART

TROUBLE SYMPTOM CHART

Scheme 2

TROUBLESHOOTING HINTS

1. Malfunctions of accessory socket (front floor console)
2. Malfunctions of accessory socket (rear floor console)
3. Malfunction of the ETACS-ECU
4. Damaged harness wires and connectors

DIAGNOSIS

Required Special Tools

1. MB991223: Harness Set
2. MB992006: Extra Fine Probe

Scheme 3

Scheme 4

Scheme 5

Scheme 6

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. Connect scan tool MB991958. Refer to " «HOW TO CONNECT SCAN TOOL (M.U.T.-III)»(ref-592995-S40121594052014011300000) ." Turn the ignition switch to the "ON" position. Check whether the ETACS-ECU related DTC is set. Turn the ignition switch to the "LOCK" (OFF) position. Q: Is the DTC set? YES: Diagnose the ETACS-ECU. Refer to «ETACS-ECU»(ref-592996-S40747243222014011300000) . NO: Go to Step 2.
2. STEP 2. Using scan tool MB991958, check data list. Check the input signal of ACC relay. (ETACS-ECU) Turn the ignition switch to the ACC position. ITEM CONDITION Item No. Item name Normal condition Item 288 ACC switch ON Q: Does scan tool MB991958 display the item "ACC switch" as normal condition? YES: Go to Step 3. NO: Troubleshoot the ETACS-ECU. Refer to «INPUT SIGNAL PROCEDURE 1 "THE IGNITION SWITCH (ACC) SIGNAL IS NOT SENT TO THE ETACS-ECU"»(ref-592996-S27174708322014011300000) .
3. STEP 3. Check ETACS-ECU connector C-415, accessory socket (front floor console) connector C-122 and accessory socket (rear floor console) connector C-120 for loose, corroded or damaged terminals, or terminals pushed back in the connector Q: Is ETACS-ECU connector C-415, accessory socket (floor console panel) connector C-122 and accessory socket (floor console) connector C-120 in good condition? YES: Go to Step 4. NO: Repair or replace the damaged component(s) (Refer to «HARNESS CONNECTOR INSPECTION»(ref-592997-S03318112612014011300000) .
4. STEP 4. Check the power supply circuit to the accessory socket (front floor console) and accessory socket (rear floor console). Measure the voltage at accessory socket (front floor console) connector C-122 and accessory socket (rear floor console) connector C-120. Disconnect the connector, and measure at the wiring harness-side connector. Turn the ignition switch to the "ACC" or "ON" position. Measure the voltage between accessory socket (front floor console) connector C-122 terminal No. 2 and ground. The voltage should measure approximately 12 volts (battery positive voltage). Measure the voltage between accessory socket (rear floor console) connector C-120 terminal No. 2 and ground. The voltage should measure approximately 12 volts (battery positive voltage). Q: Is the measured voltage approximately 12 volts (battery positive voltage)? YES: Go to Step 7 . NO < accessory socket (front floor console) side >: Go to Step 5. NO < accessory socket (rear floor console) side >: Go to Step 6 .
5. STEP 5. Check the wiring harness between accessory socket (front floor console) connector C-122 terminal No. 2 and ETACS-ECU connector C-415 terminal No. 3. Check the power supply lines (battery power supply) for open circuit and short circuit. Q: Is the wiring harness between accessory socket (front floor console) connector C-122 terminal No. 2 and ETACS-ECU connector C-415 terminal No. 3 in good condition? YES: Go to Step 7 . NO: Repair the wiring harness.
6. STEP 6. Check the wiring harness between accessory socket (rear floor console) connector C-120 terminal No. 2 and ETACS-ECU connector C-415 terminal No. 12. Check the power supply lines (battery power supply) for open circuit and short circuit. Q: Is the wiring harness between accessory socket (rear floor console) connector C-120 terminal No. 2 and ETACS-ECU connector C-415 terminal No. 12 in good condition? YES: Go to Step 7. NO: Repair the wiring harness.
7. STEP 7. Check the ground circuit to the accessory socket (front floor console) and accessory socket (rear floor console) connector. Measure the resistance at accessory socket (front floor console) connector C-122 and accessory socket (rear floor console) connector C-120. Disconnect the connector, and measure the resistance available at the wiring harness side of the connector. Measure the resistance value between accessory socket (front floor console) connector C-122 terminal No. 1 and ground. The resistance should be 2 ohms or less. Measure the resistance value between accessory socket (rear floor console) connector C-120 terminal No. 1 and ground. The resistance should be 2 ohms or less. Q: Is the measured resistance 2 ohms or less? YES: Go to Step 10 . NO < accessory socket (front floor console) side >: Go to Step 8. NO < accessory socket (rear floor console) side >: Go to Step 9 .
8. STEP 8. Check the wiring harness between accessory socket (front floor console) connector C-122 terminal No. 1 and the ground. Check the ground wires for open circuit. NOTE: Also check grounding connector C-01 for loose, corroded, or damaged terminals, or terminals pushed back in the connector. If grounding connector C-01 is damaged, repair or replace the connector as described in «HARNESS CONNECTOR INSPECTION»(ref-592997-S03318112612014011300000) . Q: Is the wiring harness between accessory socket (front floor console) connector C-122 terminal No. 1 and the ground in good condition? YES: Go to Step 10 . NO: Repair the wiring harness.
9. STEP 9. Check the wiring harness between accessory socket (rear floor console) connector C-120 terminal No. 1 and the ground. Check the body ground wires for open circuit. NOTE: Also check grounding connector C-01 for loose, corroded, or damaged terminals, or terminals pushed back in the connector. If grounding connector C-01 is damaged, repair or replace the connector as described in «HARNESS CONNECTOR INSPECTION»(ref-592997-S03318112612014011300000) . Q: Is the wiring harness between accessory socket (rear floor console) connector C-120 terminal No. 1 and the ground in good condition? YES: Go to Step 10. NO: Repair the wiring harness.
10. STEP 10. Retest the system Check if the accessory socket power is turned ON. Q: Is the check result normal? YES: The trouble can be an intermittent malfunction (Refer to «HOW TO COPE WITH INTERMITTENT MALFUNCTION»(ref-592971-S42664974692014011300000) ). NO: Replace the accessory socket.

Scheme 7

Scheme 8