Lighting System (Interior): Diagnosis Subaru BRZ ZC

Function Inspection

1. Before troubleshooting Basic inspection Measure the battery voltage. Voltage: 11 to 14V (when the engine is stopped) Inspect for blown light bulbs and fuses, wiring harnesses open circuit, short circuits, and poor contact of connectors, in places where you can inspect visually.
2. Illuminated entry system control operation check A CAUTION: Perform the check with the initial settings of the customize function. NOTE: The following lights will illuminate with the illuminated entry system (Perform the check with the mode change switch of the map light assembly set to the DOOR mode): Map light assembly Push button start switch (text illumination) *1 Transponder key amplifier (key cylinder light) *2 *1: When there is a smart entry & start system *2: When there is no smart entry & start system Check that the lights illuminate in the following conditions: Open one of the doors. Check that the light illuminates for 15 seconds and then goes off in one of the following conditions: Enter the ID collation area for the smart key. * 1 Perform the unlock operation (wireless unlock, smart unlock, and unlock with key interlock). When any doors are open with IG OFF, close all the doors. With all the doors closed, turn the ignition from IG ON -->IG OFF. *1: When there is a smart entry & start system Check that the lights go off in one of the following conditions: Exit the ID collation area for the smart key, then wait for 3 seconds or more. * 1 Close and lock all the doors with IG OFF. With all the doors closed, turn the ignition to ACC ON or IG ON. When the lights illuminate with IG OFF, turn the ignition to ACC ON or start the engine. *1: When there is a smart entry & start system
3. Battery saver inspection When one of the doors is not fully closed with IG OFF, check that the lights that illuminated with the illuminated entry system go off after approx. 20 minutes. NOTE: If the operating conditions for the light control are met, the battery saver control will be cancelled.

Scheme 1

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Symptom Table

ILLUMINATED ENTRY SYSTEM

MAP LIGHT assembly

VANITY LIGHT assembly

COURTESY LIGHT assembly

BATTERY SAVER

TRANSPONDER KEY AMPLIFIER (KEY CYLINDER LIGHT)

TRUNK ROOM LIGHT

How To Troubleshoot

1. Bring in the car Next
2. Interview and phenomenon check NOTE: Refer to «CHECK LIST FOR INTERVIEW»(ref-619176-S00361372272014053000000) . Next
3. Inspection of CAN communication system Check all diagnostic codes to confirm that no diagnostic code is recorded. RESULT Result Go to No diagnostic code recorded A Diagnostic code recorded B B: Refer to "CAN communication system" «HOW TO TROUBLESHOOT»(ref-619155-S21491093182014053000000) A: Go to Next Step
4. Symptom table NOTE: Refer to «SYMPTOM TABLE»(ref-619176-S40255971812014053000000) . RESULT Result Go to Not applicable to the symptom table. A Applicable to the symptom table. B B: Go to Step 6 A: Go to Next Step
5. Based on the trouble phenomenon, perform troubleshooting following the steps below. Function inspection (refer to «FUNCTION INSPECTION»(ref-619176-S26922533302014053000000) ) ECM terminal matrix (Refer to «ECM TERMINAL ARRANGEMENT»(ref-619176-S34723815292014053000000) ) Current Data Display & Save/Work Support (Refer to «CURRENT DATA DISPLAY & SAVE/WORK SUPPORT»(ref-619176-S11045275122014053000000) ) On-vehicle inspection Unit inspection Next
6. Adjustment, repair, or replacement Next
7. Confirmation test Next: Complete

Scheme 4

Circuit description

The main body ECM (multiplex network body computer) is detecting the ACC signal.

Scheme 5

Inspection steps

Scheme 6

Scheme 7

Scheme 8

1. Reading the current data of the SSM3 (ACC SW) On the SSM3, navigate to the [Current Data Display] display, and check the computer data. (Refer to «CURRENT DATA DISPLAY & SAVE/WORK SUPPORT»(ref-619176-S11045275122014053000000) ) Criteria: The normal value on the data monitor is displayed properly. SSM3 SCREEN: [EACH SYSTEM CHECK]--> [INTEG. UNIT MODE]--> [CURRENT DATA DISPLAY & SAVE] Item Name Description/display range Normal value Remarks [ACC SW] Status of the ACC signal Display range: OFF - ON OFF: ACC OFF ON: ACC ON or IG ON This item will be displayed as [ON] in the IG ON status. NG: Go to Step 2 OK: See the next circuit for inspection shown on the symptom table. (Refer to «SYMPTOM TABLE»(ref-619176-S40255971812014053000000) )
2. Inspection of the wiring harness and the connector (ACC 1 relay power supply) NOTE: For inspection procedures and precautions, refer to «INSPECTION PROCEDURES FOR ELECTRICAL CIRCUITS AND HOW TO PERFORM»(ref-619149-S21627727182014053000000) . Disconnect the connectors 3A and 3E of the instrument panel junction block assembly. Measure the voltage between the connector terminals on the vehicle wiring harness side. VOLTAGE Inspection terminals Inspection conditions Standard value 3E-1 - chassis ground Always 11 to 14 V 3A-20 - chassis ground ACC ON 11 to 14 V Measure the resistance between the connector terminals on the vehicle wiring harness side. RESISTANCE Inspection terminals Inspection conditions Standard value 3A-12 - chassis ground Always Less than 1 ohms 3A-13 - chassis ground Always Less than 1 ohms RESULT Result Go to OK (smart entry & start system not equipped) A OK (smart entry & start system equipped) B NG C B: Go to Step 4 . C: Repair or replacement of wiring harness or connector A: Go to Next Step
3. Inspection of the instrument panel junction block assembly (ACC 1 relay inspection) NOTE: For inspection procedures and precautions, refer to «INSPECTION PROCEDURES FOR ELECTRICAL CIRCUITS AND HOW TO PERFORM»(ref-619149-S21627727182014053000000) . Remove the instrument panel junction block assembly from the vehicle. (Refer to «REMOVAL»(ref-619154-S18264387212014053000000) ) Remove the main body ECM (multiplex network body computer) from the instrument panel junction block assembly. Measure the resistance between the terminals. RESISTANCE Inspection terminals Inspection conditions Standard value 3E-1 - MB-9 (ACC) Always 10 kohms or more 3E-1 - MB-9 (ACC) Connect the battery's positive terminal to the 3A-20 terminal, and the ground terminal to the 3A-12 or the 3A-13 terminal. Less than 1 ohms NG: Replacement of the instrument panel junction block assembly (Refer to «REMOVAL»(ref-619154-S18264387212014053000000) ) OK: Replacement of the main body ECM (multiplex network body computer) (Refer to «REMOVAL»(ref-619154-S18264387212014053000000) )
4. Inspection of the instrument panel junction block assembly (ACC 1 relay inspection) NOTE: For inspection procedures and precautions, refer to «INSPECTION PROCEDURES FOR ELECTRICAL CIRCUITS AND HOW TO PERFORM»(ref-619149-S21627727182014053000000) . Remove the instrument panel junction block assembly from the vehicle. (Refer to «REMOVAL»(ref-619154-S18264387212014053000000) ) Remove the main body ECM (multiplex network body computer) from the instrument panel junction block assembly. Measure the resistance between the terminals. RESISTANCE Inspection terminals Inspection conditions Standard value 3E-1 - MB-9 (ACC) Always 10 kohms or more 3E-1 - 3B-28 Always 10 kohms or more 3E-1 - MB-9 (ACC) Connect the battery's positive terminal to the 3A-20 terminal, and the ground terminal to the 3A-12 or the 3A-13 terminal. Less than 1 ohms 3E-1 - 3B-28 Connect the battery's positive terminal to the 3A-20 terminal, and the ground terminal to the 3A-12 or the 3A-13 terminal. Less than 1 ohms NG: Replacement of the instrument panel junction block assembly (Refer to «REMOVAL»(ref-619154-S18264387212014053000000) ) OK: Go to Next Step
5. Inspection of the wiring harness and the connector (instrument panel junction block assembly - main body ECM (multiplex network body computer)) NOTE: For inspection procedures and precautions, refer to «INSPECTION PROCEDURES FOR ELECTRICAL CIRCUITS AND HOW TO PERFORM»(ref-619149-S21627727182014053000000) . Measure the resistance between the connector terminals on the vehicle wiring harness side. RESISTANCE Inspection terminals Inspection conditions Standard value 3B-28 - D5-22 (ACC) Always Less than 1 ohms 3B-28 - chassis ground Always 10 kohms or more NG: Repair or replacement of wiring harness or connector OK: Replacement of the main body ECM (multiplex network body computer) (Refer to «REMOVAL»(ref-619154-S18264387212014053000000) )

The main body ECM (multiplex network body computer) is detecting the IG signal.

Scheme 9

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Scheme 11

1. Reading the current data of the SSM3 (IG SW) Using SSM3, display the [Current Data Display & Save] screen. Check the computer data. (Refer to «CURRENT DATA DISPLAY & SAVE/WORK SUPPORT»(ref-619176-S11045275122014053000000) ) SSM3 SCREEN: [EACH SYSTEM CHECK]--> [INTEG. UNIT MODE]--> [CURRENT DATA DISPLAY & SAVE] Item Name Description/display range Normal value Remarks [Ignition] Status of the IG signal Display range: OFF - ON [OFF]: IG OFF [ON]: IG ON This item will be displayed as [OFF] in the ACC ON status. Criteria: The normal value on the data monitor is displayed properly. NG: Go to Step 2. OK: See the next circuit for inspection shown on the symptom table. (Refer to «SYMPTOM TABLE»(ref-619176-S40255971812014053000000) )
2. Inspection of the wiring harness and the connector (IG1 NO. 1 relay power supply) NOTE: For inspection procedures and precautions, refer to «INSPECTION PROCEDURES FOR ELECTRICAL CIRCUITS AND HOW TO PERFORM»(ref-619149-S21627727182014053000000) . Disconnect the connectors 3A and 3E of the instrument panel junction block assembly. Measure the voltage between the connector terminals on the vehicle wiring harness side. VOLTAGE Inspection terminals Inspection conditions Standard value 3E-1 - chassis ground Always 11 to 14 V 3A-15 - chassis ground IG ON 11 to 14 V Measure the resistance between the connector terminals on the vehicle wiring harness side. RESISTANCE Inspection terminals Inspection conditions Standard value 3A-12 - chassis ground Always Less than 1 ohms 3A-13 - chassis ground Always Less than 1 ohms NG: Repair or replacement of wiring harness or connector OK: Go to Next Step
3. Inspection of the instrument panel junction block assembly (IG1 NO. 1 relay inspection) NOTE: For inspection procedures and precautions, refer to «INSPECTION PROCEDURES FOR ELECTRICAL CIRCUITS AND HOW TO PERFORM»(ref-619149-S21627727182014053000000) . Remove the instrument panel junction block assembly from the vehicle. (Refer to «REMOVAL»(ref-619154-S18264387212014053000000) ) Remove the main body ECM (multiplex network body computer) from the instrument panel junction block assembly. Measure the resistance between the terminals. RESISTANCE Inspection terminals Inspection conditions Standard value 3E-1 - MB-8 (IG) Always 10 kohms or more 3E-1 - MB-8 (IG) Connect the battery's positive terminal to the 3A-15 terminal, and the ground terminal to the 3A-12 or the 3A-13 terminal. Less than 1 ohms NG: Replacement of the instrument panel junction block assembly (Refer to «REMOVAL»(ref-619154-S18264387212014053000000) ) OK: Replacement of the main body ECM (multiplex network body computer) (Refer to «REMOVAL»(ref-619154-S18264387212014053000000) )

The courtesy light assembly is controlled to illuminate by the main body ECM (multiplex network body computer).

Scheme 12

Note. Before performing the troubleshooting, check the fuses and the lights of this circuit.

1. Performing the SSM3 work support On the SSM3, navigate to the [System Operation Check Mode] display, and check the computer data. (Refer to «CURRENT DATA DISPLAY & SAVE/WORK SUPPORT»(ref-619176-S11045275122014053000000) ) SSM3 SCREEN: [EACH SYSTEM CHECK]--> [INTEG. UNIT MODE]--> [WORK SUPPORT]--> [SYSTEM OPERATION CHECK MODE] Item Name Item description Drive [D-Door Courtesy Lamp] The driver's side courtesy light is turned on OFF/ON [P-Door Courtesy Lamp] The passenger's side courtesy light is turned on OFF/ON Criteria: The driver's and passenger's side courtesy lights are turned on RESULT Result Go to All items show the normal status. A [D-Door Courtesy Lamp] shows an abnormal status. B [P-Door Courtesy Lamp] shows an abnormal status. C B: Go to Step 2. C: Go to Step 5 A: See the next circuit for inspection shown on the symptom table. (Refer to «SYMPTOM TABLE»(ref-619176-S40255971812014053000000) )
2. Inspection of the wiring harness and the connector (courtesy light assembly RH - battery) NOTE: For inspection procedures and precautions, refer to «INSPECTION PROCEDURES FOR ELECTRICAL CIRCUITS AND HOW TO PERFORM»(ref-619149-S21627727182014053000000) . Disconnect the connector F4 of the courtesy light assembly RH. Measure the voltage of the vehicle wiring harness connector. VOLTAGE Inspection terminals (Terminal symbol) Inspection conditions Standard value F4-2 - Chassis ground Always 11 to 14 V NG: Repair or replacement of wiring harness or connector OK: Go to Next Step
3. Unit inspection of the courtesy light assembly RH Remove the courtesy light assembly RH. (Refer to «REMOVAL»(ref-619176-S34923732752014061000000) ) Perform the unit inspection of the courtesy light assembly RH. (Refer to «UNIT INSPECTION»(ref-619176-S31975483552014061000000) ) Criteria: The courtesy light assembly RH illuminates. NG: Replacement of the courtesy light assembly RH. (Refer to «DOOR COURTESY LIGHT»(ref-619176-S15487264042014061000000) ) OK: Go to Next Step
4. Inspection of the wiring harness and the connector (main body ECM (multiplex network body computer) - courtesy light assembly RH) NOTE: For inspection procedures and precautions, refer to «INSPECTION PROCEDURES FOR ELECTRICAL CIRCUITS AND HOW TO PERFORM»(ref-619149-S21627727182014053000000) . Disconnect the connector D5 of the main body ECM (multiplex network body computer). Disconnect the connector F4 of the courtesy light assembly RH. Measure the resistance of the vehicle wiring harness connector. RESISTANCE Inspection terminals (Terminal symbol) Inspection conditions Standard value D5-5 (FRCL) - F4-1 Always Less than 1 ohms F4-1 - Chassis ground Always 10 kohms or more NG: Repair or replacement of wiring harness or connector OK: Replacement of the main body ECM (multiplex network body computer) (Refer to «REMOVAL»(ref-619154-S18264387212014053000000) )
5. Inspection of the wiring harness and the connector (courtesy light assembly LH - battery) NOTE: For inspection procedures and precautions, refer to «INSPECTION PROCEDURES FOR ELECTRICAL CIRCUITS AND HOW TO PERFORM»(ref-619149-S21627727182014053000000) . Disconnect the connector E2 of the courtesy light assembly LH. Measure the voltage of the vehicle wiring harness connector. VOLTAGE Inspection terminals (Terminal symbol) Inspection conditions Standard value E2-2 - chassis ground Always 11 to 14 V NG: Repair or replacement of wiring harness or connector OK: Go to Next Step
6. Unit inspection of the courtesy light assembly LH Remove the courtesy light assembly LH. (Refer to «REMOVAL»(ref-619176-S34923732752014061000000) ) Perform the unit inspection of the courtesy light assembly LH. (Refer to «UNIT INSPECTION»(ref-619176-S31975483552014061000000) ) Criteria: The courtesy light assembly LH illuminates. NG: Replacement of the courtesy light assembly LH. (Refer to «DOOR COURTESY LIGHT»(ref-619176-S15487264042014061000000) ) OK: Go to Next Step
7. Inspection of the wiring harness and the connector (main body ECM (multiplex network body computer) - courtesy light assembly LH) NOTE: For inspection procedures and precautions, refer to «INSPECTION PROCEDURES FOR ELECTRICAL CIRCUITS AND HOW TO PERFORM»(ref-619149-S21627727182014053000000) . Disconnect the connector D5 of the main body ECM (multiplex network body computer). Disconnect the connector E2 of the courtesy light assembly LH. Measure the resistance of the vehicle wiring harness connector. RESISTANCE Inspection terminals (Terminal symbol) Inspection conditions Standard value D5-6 (FLCL) - E2-1 Always Less than 1 ohms E2-1 - chassis ground Always 10 kohms or more NG: Repair or replacement of wiring harness or connector OK: Replacement of the main body ECM (multiplex network body computer) (Refer to «REMOVAL»(ref-619154-S18264387212014053000000) )

The text illumination of the push button start switch is controlled by the smart key computer assembly (collation ECM).

Scheme 13

1. Performing the SSM3 work support (push button start switch) On the SSM3, navigate to the [System Operation Check Mode] display, and check the computer data. (Refer to «CURRENT DATA DISPLAY & SAVE/WORK SUPPORT»(ref-619176-S11045275122014053000000) ) SSM3 SCREEN: [EACH SYSTEM CHECK]--> [INTEG. UNIT MODE]--> [WORK SUPPORT]--> [SYSTEM OPERATION CHECK MODE] Item Name Item description Drive [Key illumi. Lamp] Turn on the text illumination of the push button start switch. Stop/output Criteria: The System Operation Inspection Mode is performed properly. NG: Go to Step 2. OK: See the next circuit for inspection shown on the symptom table. (Refer to «SYMPTOM TABLE»(ref-619176-S40255971812014053000000) )
2. Unit inspection of the push button start switch Remove the push button start switch. (Refer to «ENGINE SWITCH»(ref-619186-S00556208322014053000000) ) Perform the unit inspection of the push button start switch. (Refer to «UNIT INSPECTION»(ref-619186-S23287285622014053000000) ) Criteria: The text illumination turns on. NG: Replacement of the push button start switch (Refer to «ENGINE SWITCH»(ref-619186-S00556208322014053000000) ) OK: Go to Next Step
3. Inspection of the wiring harness and the connector (push button start switch - smart key computer assembly (collation ECM) and chassis ground) NOTE: For inspection procedures and precautions, refer to «INSPECTION PROCEDURES FOR ELECTRICAL CIRCUITS AND HOW TO PERFORM»(ref-619149-S21627727182014053000000) . Disconnect the connector D25 of the push button start switch. Disconnect the connector D41 of the smart key computer assembly (collation ECM). Measure the resistance between the connector terminals on the vehicle wiring harness side. RESISTANCE Inspection terminals Inspection conditions Standard value D41-16 (SWIL) - D25-9 (SWIL) Always Less than 1 ohms D41-24 (AGND) -D25-6 (AGND) Always Less than 1 ohms D41-16 (SWIL) - chassis ground Always 10 kohms or more D41-24 (AGND) -chassis ground Always 10 kohms or more NG: Repair or replacement of wiring harness or connector OK: Replacement of the smart key computer assembly (collation ECM)

The main body ECM (multiplex network body computer) is receiving the door lock position switch signal from each door.

Scheme 14

1. Reading the current data of the SSM3 (door lock position switch) Using SSM3, display the [Current Data Display & Save] screen. Check the computer data. (Refer to «CURRENT DATA DISPLAY & SAVE/WORK SUPPORT»(ref-619176-S11045275122014053000000) ) Criteria: The normal value on the data monitor is displayed properly. SSM3 SCREEN: [EACH SYSTEM CHECK]--> [INTEG. UNIT MODE]--> [CURRENT DATA DISPLAY & SAVE] Item Name Description/display range Normal value Remarks [D Door Lock Pos] Lock/unlock status of the driver's side door Display range: [Lock]-[Unlock] [Lock]: When the driver's side door is locked [Unlock]: When the driver's side door is unlocked - [P Door Lock Pos] Lock/unlock status of the passenger's side door Display range: [Lock]-[Unlock] [Lock]: When the passenger's side door is locked [Unlock]: When the passenger's side door is unlocked - RESULT Result Go to OK A NG (The door lock position switch of the driver's side door does not operate.) B NG (The door lock position switch of the passenger's side door does not operate.) C B: Go to Step 2. C: Go to Step 4 . A: See the next circuit for inspection shown on the symptom table. (Refer to «SYMPTOM TABLE»(ref-619176-S40255971812014053000000) )
2. Unit inspection of the front door lock assembly RH Remove the front door lock assembly RH. (Refer to «REMOVAL»(ref-619180-S01261028462014053000000) ) Perform the unit inspection of the front door lock assembly RH. (Refer to «INSTALLATION»(ref-619180-S31517274942014053000000) ) Criteria: The inspection result shows the normal status. NG: Replacement of the front door lock assembly RH (Refer to «REMOVAL»(ref-619180-S01261028462014053000000) ) OK: Go to Next Step
3. Inspection of the wiring harness and the connector (front door lock assembly RH - main body ECM (multiplex network body computer) and chassis ground) NOTE: For inspection procedures and precautions, refer to «INSPECTION PROCEDURES FOR ELECTRICAL CIRCUITS AND HOW TO PERFORM»(ref-619149-S21627727182014053000000) . Disconnect the connector F3 of the front door lock assembly RH. Disconnect the connector D6 of the main body ECM (multiplex network body computer). Measure the resistance between the connector terminals on the vehicle wiring harness side. RESISTANCE Inspection terminals Inspection conditions Standard value D6-11 (LSFD) - F3-7 (LSSR) Always Less than 1 ohms F3-8 (E) - chassis ground Always Less than 1 ohms F3-7 (LSSR) - chassis ground Always 10 kohms or more NG: Repair or replacement of wiring harness or connector OK: Replacement of the main body ECM (multiplex network body computer) (Refer to «REMOVAL»(ref-619154-S18264387212014053000000) )
4. Unit inspection of the front door lock assembly LH Remove the front door lock assembly LH. (Refer to «REMOVAL»(ref-619180-S01261028462014053000000) ) Perform the unit inspection of the front door lock assembly LH. (Refer to «INSTALLATION»(ref-619180-S31517274942014053000000) ) Criteria: The inspection result shows the normal status. NG: Replacement of the front door lock assembly LH (Refer to «REMOVAL»(ref-619180-S01261028462014053000000) ) OK: Go to Next Step
5. Inspection of the wiring harness and the connector (front door lock assembly LH - main body ECM (multiplex network body computer) and chassis ground) NOTE: For inspection procedures and precautions, refer to «INSPECTION PROCEDURES FOR ELECTRICAL CIRCUITS AND HOW TO PERFORM»(ref-619149-S21627727182014053000000) . Disconnect the connector E3 of the front door lock assembly LH. Disconnect the connector D6 of the main body ECM (multiplex network body computer). Measure the resistance between the connector terminals on the vehicle wiring harness side. RESISTANCE Inspection terminals Inspection conditions Standard value D6-12 (LSFP) - E3-8 (LSSR) Always Less than 1 ohms E3-7 (E) - chassis ground Always Less than 1 ohms E3-8 (LSSR) - chassis ground Always 10 kohms or more NG: Repair or replacement of wiring harness or connector OK: Replacement of the main body ECM (multiplex network body computer) (Refer to «REMOVAL»(ref-619154-S18264387212014053000000) )

The main body ECM (multiplex network body computer) is detecting the front door courtesy light switch signal.

Scheme 15

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1. Reading the current data of the SSM3 (courtesy light switch) Using SSM3, display the [Current Data Display & Save] screen. Check the computer data. (Refer to «CURRENT DATA DISPLAY & SAVE/WORK SUPPORT»(ref-619176-S11045275122014053000000) ) Criteria: The normal value on the data monitor is displayed properly. SSM3 SCREEN: [EACH SYSTEM CHECK]--> [INTEG. UNIT MODE]--> [CURRENT DATA DISPLAY & SAVE] Item Name Description/display range Normal value Remarks [D Door Courtesy] Status of the front door courtesy light switch assembly LH Display range: [Close]-[Open] Close: the driver side door is closed Open: the driver side door is opened - [P Door Courtesy] Status of the front door courtesy light switch assembly RH Display range: [Close]-[Open] [Close]: When the passenger's side door is closed [Open]: When the passenger's side door is open - RESULT Result Go to OK A NG (The courtesy light switch of the driver's side door does not operate.) B NG (The courtesy light switch of the passenger's side door does not operate.) C B: Go to Step 2. C: Go to Step 5 . A: See the next circuit for inspection shown on the symptom table. (Refer to «SYMPTOM TABLE»(ref-619176-S40255971812014053000000) )
2. Unit inspection of the front door courtesy light switch assembly RH Remove the front door courtesy light switch assembly RH. (Refer to «REMOVAL»(ref-619176-S27224068782014061000000) ) Perform the unit inspection of the front door courtesy light switch assembly RH. (Refer to «UNIT INSPECTION»(ref-619176-S06501354912014061000000) ) Criteria: The inspection result shows the normal status. NG: Replacement of the front door courtesy light switch assembly RH. (Refer to «FRONT DOOR COURTESY SWITCH»(ref-619176-S26750809972014061000000) ) OK: Go to Next Step
3. Inspection of the wiring harness and the connector (front door courtesy light assembly RH - instrument panel junction block assembly) NOTE: For inspection procedures and precautions, refer to «INSPECTION PROCEDURES FOR ELECTRICAL CIRCUITS AND HOW TO PERFORM»(ref-619149-S21627727182014053000000) . Disconnect the connector G18 of the front door courtesy light switch assembly RH. Disconnect the connector 3A of the instrument panel junction block assembly. Measure the resistance between the connector terminals on the vehicle wiring harness side. RESISTANCE Inspection terminals Inspection conditions Standard value G18-1 - 3A-13 Always Less than 1 ohms G18-1 - Chassis ground Always 10 kohms or more NG: Repair or replacement of wiring harness or connector OK: Go to Next Step
4. Inspection of the instrument panel junction block assembly. NOTE: For inspection procedures and precautions, refer to «INSPECTION PROCEDURES FOR ELECTRICAL CIRCUITS AND HOW TO PERFORM»(ref-619149-S21627727182014053000000) . Remove the instrument panel junction block assembly from the vehicle. (Refer to «REMOVAL»(ref-619154-S18264387212014053000000) ) Measure the resistance between the terminals. Remove the main body ECM (multiplex network body computer) from the instrument panel junction block assembly. RESISTANCE Inspection terminals Inspection conditions Standard value 3B-13 - MB-10 (FPCY) Always Less than 1 ohms NG: Replacement of the instrument panel junction block assembly (Refer to «REMOVAL»(ref-619154-S18264387212014053000000) ) OK: Replacement of the main body ECM (multiplex network body computer) (Refer to «REMOVAL»(ref-619154-S18264387212014053000000) )
5. Unit inspection of the front door courtesy light switch assembly LH Remove the front door courtesy light switch assembly LH. (Refer to «REMOVAL»(ref-619176-S27224068782014061000000) ) Perform the unit inspection of the front door courtesy light switch assembly LH. (Refer to «UNIT INSPECTION»(ref-619176-S06501354912014061000000) ) ) Criteria: The inspection result shows the normal status. NG: Replacement of the front door courtesy light switch assembly LH. (Refer to «FRONT DOOR COURTESY SWITCH»(ref-619176-S26750809972014061000000) ) OK: Go to Next Step
6. Inspection of the wiring harness and the connector (front door courtesy light switch assembly LH - instrument panel junction block assembly) NOTE: For inspection procedures and precautions, refer to «INSPECTION PROCEDURES FOR ELECTRICAL CIRCUITS AND HOW TO PERFORM»(ref-619149-S21627727182014053000000) . Disconnect the connector H21 of the front door courtesy light switch assembly LH. Disconnect the connector 3B of the instrument panel junction block assembly. Measure the resistance between the connector terminals on the vehicle wiring harness side. RESISTANCE Inspection terminals Inspection conditions Standard value H21-1 - 3A-28 Always Less than 1 ohms H21-1 - chassis ground Always 10 kohms or more NG: Repair or replacement of wiring harness or connector OK: Go to Next Step
7. Inspection of the instrument panel junction block assembly. NOTE: For inspection procedures and precautions, refer to «INSPECTION PROCEDURES FOR ELECTRICAL CIRCUITS AND HOW TO PERFORM»(ref-619149-S21627727182014053000000) . Remove the instrument panel junction block assembly from the vehicle. (Refer to «REMOVAL»(ref-619154-S18264387212014053000000) ) Remove the main body ECM (multiplex network body computer) from the instrument panel junction block assembly. Measure the resistance between the terminals. RESISTANCE Inspection terminals Inspection conditions Standard value 3A-28 - MB-16 (FDCY) Always Less than 1 ohms NG: Replacement of the instrument panel junction block assembly (Refer to «REMOVAL»(ref-619154-S18264387212014053000000) ) OK: Replacement of the main body ECM (multiplex network body computer) (Refer to «REMOVAL»(ref-619154-S18264387212014053000000) )

The main body ECM (multiplex network body computer) is detecting the courtesy switch signal of the trunk lock assembly.

Scheme 18

Scheme 19

Scheme 20

1. Reading the current data of the SSM3 Using SSM3, display the [Current Data Display & Save] screen. Check the computer data. (Refer to «CURRENT DATA DISPLAY & SAVE/WORK SUPPORT»(ref-619176-S11045275122014053000000) ) SSM3 SCREEN: [EACH SYSTEM CHECK]--> [INTEG. UNIT MODE]--> [CURRENT DATA DISPLAY & SAVE] Item Name Description/display range Normal value Remarks [Luggage Courtesy SW] Status of the trunk lock assembly Display range: [Close]-[Open] Close: The trunk door is closed. Open: The trunk door is open. - Criteria: The normal value on the data monitor is displayed properly. NG: Go to Step 2. OK: See the next circuit for inspection shown on the symptom table. (Refer to «SYMPTOM TABLE»(ref-619176-S40255971812014053000000) )
2. Inspection of the trunk lock assembly Remove the trunk lock assembly. (Refer to «TRUNK PANEL LOCK assembly»(ref-619180-S08984910562014053000000) ) Check the resistance between the connector terminals. RESISTANCE Inspection terminals Inspection conditions Standard value 3 (D+) - 2 (E) Open Less than 1 ohms 3 (D+) - 2 (E) Locked 10 kohms or more NG: Replacement of the trunk lock assembly (Refer to «TRUNK PANEL LOCK assembly»(ref-619180-S08984910562014053000000) ) OK: Go to Next Step
3. Inspection of the wiring harness and the connector (trunk lock assembly - instrument panel junction block assembly and chassis ground) NOTE: For inspection procedures and precautions, refer to «INSPECTION PROCEDURES FOR ELECTRICAL CIRCUITS AND HOW TO PERFORM»(ref-619149-S21627727182014053000000) . Disconnect the connector 3D of the instrument panel junction block assembly. Disconnect the connector J3 of the trunk lock assembly. Measure the resistance between the connector terminals on the vehicle wiring harness side. RESISTANCE Inspection terminals Inspection conditions Standard value J3-3 (D+) - 3D-26 Always Less than 1 ohms J3-3 (D+) - chassis ground Always 10 kohms or more J3-2 (E) - chassis ground Always Less than 1 ohms NG: Repair or replacement of wiring harness or connector OK: Go to Next Step
4. Inspection of the instrument panel junction block assembly. NOTE: For inspection procedures and precautions, refer to «INSPECTION PROCEDURES FOR ELECTRICAL CIRCUITS AND HOW TO PERFORM»(ref-619149-S21627727182014053000000) . Remove the instrument panel junction block assembly from the vehicle. (Refer to «REMOVAL»(ref-619154-S18264387212014053000000) ) Remove the main body ECM (multiplex network body computer) from the instrument panel junction block assembly. Measure the resistance between the terminals. RESISTANCE Inspection terminals (Terminal symbol) Inspection conditions Standard value 3D-26 - MB-12 Always Less than 1 ohms NG: Replacement of the instrument panel junction block assembly (Refer to «REMOVAL»(ref-619154-S18264387212014053000000) ) OK: Replacement of the main body ECM (multiplex network body computer) (Refer to «REMOVAL»(ref-619154-S18264387212014053000000) )

The main body ECM (multiplex network body computer) controls the map light assembly to illuminate.

Scheme 21

Scheme 22

1. Performing the SSM3 work support (map light) On the SSM3, follow the display to perform [Work Support]. (Refer to «CURRENT DATA DISPLAY & SAVE/WORK SUPPORT»(ref-619176-S11045275122014053000000) ) SSM3 SCREEN: [EACH SYSTEM CHECK]--> [INTEG. UNIT MODE]--> [WORK SUPPORT]--> [SYSTEM OPERATION CHECK MODE] Item Name Item description Drive [Illuminated Entry System] The lights controlled by the illuminated entry system are turned on OFF/ON Criteria: The work support can be performed properly. NOTE: Perform the inspection with the change switch of the map light assembly set to the DOOR mode. NG: Go to Step 2. OK: Perform the circuit test shown on the symptom table. (Refer to «SYMPTOM TABLE»(ref-619176-S40255971812014053000000) )
2. Unit inspection of the map light assembly Remove the map light assembly. (Refer to «REMOVAL»(ref-619176-S22988093682014061000000) ) Perform the unit inspection of the map light assembly. (Refer to «UNIT INSPECTION»(ref-619176-S31045330142014061000000) ) NG: Replacement of the map light assembly. (Refer to «PERSONAL MAP LIGHT»(ref-619176-S39584018302014061000000) ) OK: Go to Next Step
3. Inspection of the wiring harness and the connector (map light assembly - battery) NOTE: For inspection procedures and precautions, refer to «INSPECTION PROCEDURES FOR ELECTRICAL CIRCUITS AND HOW TO PERFORM»(ref-619149-S21627727182014053000000) . Disconnect the connector K3 of the map light assembly. Measure the voltage between the connector terminals on the vehicle wiring harness side. VOLTAGE Inspection terminals Inspection conditions Standard value K3-2 (+B) - chassis ground Always 11 to 14 V NG: Repair or replacement of wiring harness or connector OK: Go to Next Step
4. Inspection of the wiring harness and the connector (map light assembly - main body ECM (multiplex network body computer)) NOTE: For inspection procedures and precautions, refer to «INSPECTION PROCEDURES FOR ELECTRICAL CIRCUITS AND HOW TO PERFORM»(ref-619149-S21627727182014053000000) . Disconnect the connector K3 of the map light assembly. Disconnect the connector D5 of the main body ECM (multiplex network body computer). Measure the resistance between the connector terminals on the vehicle wiring harness side. RESISTANCE Inspection terminals Inspection conditions Standard value K3-3 (DOOR SW) -D5-7 (DOMR) Always Less than 1 ohms D5-7 (DOMR) - chassis ground Always 10 kohms or more NG: Repair or replacement of wiring harness or connector OK: Replacement of the main body ECM (multiplex network body computer) (Refer to «REMOVAL»(ref-619154-S18264387212014053000000) )

The main body ECM (multiplex network body computer) controls the transponder key amplifier (key cylinder light) to illuminate.

Scheme 23

Scheme 24

Scheme 25

1. Performing the SSM3 work support On the SSM3, navigate to the [Work Support] display, and check the computer data. (Refer to «CURRENT DATA DISPLAY & SAVE/WORK SUPPORT»(ref-619176-S11045275122014053000000) ) SSM3 SCREEN: [EACH SYSTEM CHECK]--> [INTEG. UNIT MODE]--> [WORK SUPPORT]--> [SYSTEM OPERATION CHECK MODE] Item Name Item description Drive [Key illumi. Lamp] Turn on the key cylinder light. ON/OFF Criteria: The work support can be performed properly. NG: Go to Step 2. OK: See the next circuit for inspection shown on the symptom table. (Refer to «SYMPTOM TABLE»(ref-619176-S40255971812014053000000) )
2. Unit inspection of the transponder key amplifier Remove the transponder key amplifier. (Refer to «TRANSPONDER KEY AMPLIFIER»(ref-619201-S02331962712014053000000) ) Check that the transponder key amplifier light illuminates. Inspect if the light turns on when battery voltage is applied to each connector terminal. CRITERIA Battery connection Criteria Battery positive terminal -->2 (ILL+) Battery ground terminal -->6 (ILL-) Light turns on. NG: Replacement of the transponder key amplifier (Refer to «TRANSPONDER KEY AMPLIFIER»(ref-619201-S02331962712014053000000) ) OK: Go to Next Step
3. Inspection of the wiring harness and the connector (transponder key amplifier - battery) NOTE: For inspection procedures and precautions, refer to «INSPECTION PROCEDURES FOR ELECTRICAL CIRCUITS AND HOW TO PERFORM»(ref-619149-S21627727182014053000000) . Disconnect the connector D54 of the transponder key amplifier. Measure the voltage between the connector terminals on the vehicle wiring harness side. VOLTAGE Inspection terminals Inspection conditions Standard value D54-2 (ILL+) - chassis ground Always 11 to 14 V NG: Repair or replacement of wiring harness or connector OK: Go to Next Step
4. Inspection of the wiring harness and the connector (transponder key amplifier - main body ECM (multiplex network body computer)) NOTE: For inspection procedures and precautions, refer to «INSPECTION PROCEDURES FOR ELECTRICAL CIRCUITS AND HOW TO PERFORM»(ref-619149-S21627727182014053000000) . Disconnect the connector D54 of the transponder key amplifier. Disconnect the connector D5 of the main body ECM (multiplex network body computer). Measure the resistance between the connector terminals on the vehicle wiring harness side. RESISTANCE Inspection terminals (Terminal symbol) Inspection conditions Standard value D54-6 (ILL-) - D5-28 (ILL) Always Less than 1 ohms D5-28 (ILL) - chassis ground Always 10 kohms or more NG: Repair or replacement of wiring harness or connector OK: Replacement of the main body ECM (multiplex network body computer) (Refer to «REMOVAL»(ref-619154-S18264387212014053000000) )

Exploded View Of Vanity Light. Scheme 26

Unit Inspection

Note. The procedures described below are for the RH side. Perform the same procedures for the LH side.

Scheme 27

1. Inspection of the courtesy light ASSY Light inspection Inspect if the light turns on when battery voltage is applied to each connector terminal. Criteria Inspection terminals Battery connection Criteria 1 - 2 Battery positive -->1 Battery ground -->2 Light turns on. (Scheme 27): Courtesy Light Harness Connector

Exploded View Of Key Transponder Key Amplifier. Scheme 28

Scheme 29

1. Removal of the steering column cover LWR (Refer to «REMOVAL»(ref-619170-S35649174192014053000000) )
2. Removal of the steering column cover UPR (Refer to «REMOVAL»(ref-619170-S35649174192014053000000) )
3. Removal of the transponder key amplifier Disconnect the connector. Release the two claws by using a fine flat tip screwdriver wrapped with protective tape, and remove the transponder key amplifier. (Scheme 29): Removing Transponder Key Amplifier