Lighting System: Overview Nissan Maxima A34

System Description

Control of the headlamp system operation is dependent upon the position of the combination switch (lighting switch). When the lighting switch is placed in the 2ND position, the BCM (body control module) receives input signal requesting the headlamps (and tail lamps) illuminate. This input signal is communicated to the IPDM E/R (intelligent power distribution module engine room) across the CAN communication lines. The CPU (central processing unit) of the IPDM E/R controls the headlamp high and headlamp low relay coils. These relays, when energized, direct power to the respective headlamps, which then illuminate.

If voltage is applied to a high beam solenoid, the bulb shade will move and a high beam and a low beam are changed.

Low Beam Operation

With the lighting switch in 2ND position, the BCM receives input signal requesting the headlamps to illuminate. This input signal is communicated to the IPDM E/R across the CAN communication lines. The CPU in the IPDM E/R controls the headlamp low relay coil, which when energized, directs power

1. Through 15A fuse (No. 36, located in the IPDM E/R)
2. To IPDM E/R terminal 20
3. To headlamp RH terminal 3, and
4. Through 15A fuse (No. 45, located in the IPDM E/R)
5. To IPDM E/R terminal 30
6. To headlamp LH terminal 3.

Ground is supplied

1. To headlamp LH and RH terminal 4
2. Through grounds E15 and E24.

With power and ground supplied, low beam headlamps illuminate.

High Beam Operation/Flash-to-Pass Operation

With the lighting switch in 2ND position and placed in HIGH or PASS position, the BCM receives input signal requesting the headlamp high beams to illuminate. This input signal is communicated to the IPDM E/R across the CAN communication lines. The CPU in the IPDM E/R controls the headlamp high relay coil and low relay coil, which when energized, directs power

1. Through 15A fuse (No. 36, located in the IPDM E/R)
2. To IPDM E/R terminal 20
3. To headlamp RH terminal 3, and
4. Through 15A fuse (No. 45, located in the IPDM E/R)
5. To IPDM E/R terminal 30
6. To headlamp LH terminal 3, and
7. Through 10A fuse (No. 40, located in the IPDM E/R)
8. To IPDM E/R terminal 27
9. To headlamp RH terminal 7, and
10. Through 10A fuse (No. 38, located in the IPDM E/R)
11. To IPDM E/R terminal 28
12. To headlamp LH terminal 7.

Ground is supplied

1. To headlamp LH and RH terminals 4 and 8
2. Through grounds E15 and E24.

With power and ground supplied, the high beam headlamps illuminate.

If voltage is applied to a high beam solenoid, the bulb shade will move and a high beam and a low beam are changed.

The unified meter and A/C amp that received the high beam request signal by BCM across the CAN communication makes a high beam indicator lamp turn on in combination meter.

AUTO LIGHT OPERATION

Refer to SYSTEM DESCRIPTION in AUTO LIGHT SYSTEM.

CAN Communication System Description

Refer to CAN COMMUNICATION .

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CONSULT-II OPERATION

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1. With the ignition switch OFF, connect CONSULT-II and CONSULT-II CONVERTER to the data link connector, then turn ignition switch ON.
2. Touch "START (NISSAN BASED VHCL)".
3. Touch "BCM" on "SELECT SYSTEM" screen. If "BCM" is not indicated, go to «CONSULT-II DATA LINK CONNECTOR (DLC) CIRCUIT»(ref-233642-S33893762202006052600000) .
4. Touch "HEAD LAMP" on "SELECT TEST ITEM" screen.

Operation Procedure

1. Touch "HEAD LAMP" on "SELECT TEST ITEM" screen.
2. Touch "WORK SUPPORT" on "SELECT DIAG MODE" screen.
3. Touch item on "SELECT WORK ITEM" screen.
4. Touch "START".
5. Touch "CHANGE SETT".
6. The setting will be changed and "CUSTOMIZING COMPLETED" will be displayed.
7. Touch "END".

Scheme 7

1. Touch "HEAD LAMP" on "SELECT TEST ITEM" screen.
2. Touch "DATA MONITOR" on "SELECT DIAG MODE" screen.
3. Touch either "ALL SIGNALS" or "SELECTION FROM MENU" on the "SELECT MONITOR ITEM" screen. DATA MONITOR DETAIL All signals Monitors all the signals. Selection from menu Selects and monitors individual signal.
4. Touch "START".
5. When "SELECTION FROM MENU" is selected, touch individual items to be monitored. When "ALL SIGNALS" is selected, all the items will be monitored.
6. Touch "RECORD" while monitoring, then the status of the monitored item can be recorded. To stop recording, touch "STOP".

1. Touch "HEAD LAMP" on "SELECT TEST ITEM" screen.
2. Touch "ACTIVE TEST" on "SELECT DIAG MODE" screen.
3. Touch item to be tested and check operation of the selected item.
4. During the operation check, touching "BACK" deactivates the operation.

1. Touch "BCM" on "SELECT TEST ITEM" screen.
2. Touch "SELF-DIAG RESULTS" on "SELECT DIAG MODE" screen.
3. Self-diagnostic results are displayed.

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1. With the ignition switch OFF, connect CONSULT-II and CONSULT-II CONVERTER to the data link connector, then turn the ignition switch ON.
2. Touch "START (NISSAN BASED VHCL)".
3. Touch "IPDM E/R" on "SELECT SYSTEM" screen. If "IPDM E/R" is not displayed, go to «CONSULT-II DATA LINK CONNECTOR (DLC) CIRCUIT»(ref-233642-S33893762202006052600000) .
4. Select the desired part to be diagnosed on the "SELECT DIAG MODE" screen.

1. Touch "DATA MONITOR" on "SELECT DIAG MODE" screen.
2. Touch "ALL SIGNALS", "MAIN SIGNALS" or "SELECT FROM MENU" on the "SELECT MONITOR ITEM" screen. DATA MONITOR DETAIL ALL SIGNALS All items will be monitored. MAIN SIGNALS Monitor the predetermined item. SELECT FROM MENU Select any item for monitoring.
3. Touch "START".
4. Touch the required monitoring item on "SELECT ITEM MENU". In "ALL SIGNALS", all items are monitored. In "MAIN SIGNALS", predetermined items are monitored.
5. Touch "RECORD" while monitoring to record the status of the item being monitored. To stop recording, touch "STOP".

Scheme 12

Note. Perform monitoring of IPDM E/R data with the ignition switch ON. When the ignition switch is at ACC, the display may not be correct.

Scheme 13

1. Touch "ACTIVE TEST" on "SELECT DIAG MODE" screen.
2. Touch item to be tested, and check operation.
3. Touch "START".
4. Touch "STOP" while testing to stop the operation.

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1. CHECK COMBINATION SWITCH INPUT SIGNAL With CONSULT-II Select "BCM" on CONSULT-II. With "HEAD LAMP" data monitor, make sure "HI BEAM SW" turns ON-OFF linked with operation of lighting switch. When lighting switch is in HIGH position: HI BEAM SW ON Without CONSULT-II Refer to «COMBINATION SWITCH INSPECTION»(ref-233676-S39849350602006052600000) . OK or NG OK: GO TO 2 . NG: Check lighting switch. Refer to «COMBINATION SWITCH INSPECTION»(ref-233676-S39849350602006052600000) .
2. HEADLAMP ACTIVE TEST With CONSULT-II Select "BCM" on CONSULT-II, and select "HEAD LAMP" on "SELECT TEST ITEM" screen. Select "ACTIVE TEST" on "SELECT DIAG MODE" screen. Select "HEAD LAMP" on "SELECT TEST ITEM" screen. Touch "HI" on "ACTIVE TEST" screen. Make sure headlamp high beam operates. Headlamp high beam should operate (Headlamp high beam stay on steady). Without CONSULT-II Start auto active test. Refer to «AUTO ACTIVE TEST»(ref-233661-S03416427522006052600000) . Make sure headlamp high beam operates. Headlamp high beam should operate. OK or NG OK: GO TO 3 . NG: GO TO 4 .
3. CHECK IPDM E/R Select "IPDM E/R" on CONSULT-II, and select "DATA MONITOR" on "SELECT DIAG MODE" screen. Make sure "HL LO REQ" and "HL HI REQ" turns ON when lighting switch is in HI position. When lighting switch is in: HL LO REQ ON HIGH position: HL HI REQ ON OK or NG OK: Replace IPDM E/R. Refer to «REMOVAL AND INSTALLATION OF IPDM E/R»(ref-233661-S42132645482006052600000) . NG: Replace BCM. Refer to «REMOVAL AND INSTALLATION of BCM»(ref-233675-S19678858802006052600000) .
4. CHECK HEADLAMP INPUT SIGNAL With CONSULT-II Turn ignition switch OFF. Disconnect front combination lamp RH and LH connector. Select "BCM" on CONSULT-II, and select "HEAD LAMP" on "SELECT TEST ITEM" screen. Select "ACTIVE TEST" on "SELECT DIAG MODE" screen. Select "HEAD LAMP" on "SELECT TEST ITEM" screen. Touch "HI" on "ACTIVE TEST" screen. When headlamp high beam is operating, check voltage between front combination lamp RH and LH harness connector and ground (headlamp high beam stays ON steady). Without CONSULT-II Turn ignition switch OFF. Disconnect front combination lamp RH and LH connector. Start auto active test. Refer to «AUTO ACTIVE TEST»(ref-233661-S03416427522006052600000) . When headlamp high beam is operating, check voltage between front combination lamp RH and LH harness connector and ground. OK or NG OK: GO TO 6 . NG: GO TO 5 .
5. CHECK HEADLAMP CIRCUIT Turn ignition switch OFF. Disconnect IPDM E/R connector. Check continuity between IPDM E/R harness connector E122 terminal 27 (L/W) and front combination lamp RH harness connector E107 terminal 7 (L/W). 27 (L/W) - 7 (L/W): Continuity should exist. Check continuity between IPDM E/R harness connector E122 terminal 28 (G) and front combination lamp LH harness connector E11 terminal 7 (G). 28 (G) - 7 (G): Continuity should exist. OK or NG OK: Replace IPDM E/R. Refer to «REMOVAL AND INSTALLATION OF IPDM E/R»(ref-233661-S42132645482006052600000) . NG: Repair harness or connector.
6. CHECK HEADLAMP GROUND Check continuity between front combination lamp RH harness connector E107 terminal 8 (B) and ground. 8 (B) - Ground: Continuity should exist. Check continuity between front combination lamp LH harness connector E11 terminal 8 (B) and ground. 8 (B) - Ground: Continuity should exist. OK or NG OK: Replace headlamp assembly. Refer to «COMBINATION LAMP REMOVAL AND INSTALLATION»(ref-233676-S28540727632006052600000) . NG: Repair harness or connector.

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1. CHECK HEADLAMP INPUT SIGNAL Disconnect front combination lamp RH or LH connector. Turn ignition switch ON. Lighting switch is turned to HIGH position. Check voltage between front combination lamp RH or LH harness connector and ground. OK or NG OK: GO TO 3 . NG: GO TO 2 .
2. CHECK HEADLAMP CIRCUIT Turn ignition switch OFF. Disconnect IPDM E/R connector. Check continuity between IPDM E/R harness connector E122 terminal 27 (L/W) and front combination lamp RH harness connector E107 terminal 7 (L/W). 27 (L/W) - 7 (L/W): Continuity should exist. Check continuity between IPDM E/R harness connector E122 terminal 28 (G) and front combination lamp LH harness connector E11 terminal 7 (G). 28 (G) - 7 (G): Continuity should exist. OK or NG OK: Replace IPDM E/R. Refer to «REMOVAL AND INSTALLATION OF IPDM E/R»(ref-233661-S42132645482006052600000) . NG: Repair harness or connector.
3. CHECK HEADLAMP GROUND Check continuity between front combination lamp RH harness connector E107 terminal 8 (B) and ground. 8 (B) - Ground: Continuity should exist. Check continuity between front combination lamp LH harness connector E11 terminal 8 (B) and ground. 8 (B) - Ground: Continuity should exist. OK or NG OK: Replace headlamp assembly. Refer to «COMBINATION LAMP REMOVAL AND INSTALLATION»(ref-233676-S28540727632006052600000) ". NG: Repair harness or connector.

Daytime light system turns on daytime light lamps while driving. Daytime light lamps are not turned on if engine is activated with parking brake on. Take off parking brake to turn on daytime light lamps. The lamps turn off when lighting switch is in the 2ND position or AUTO position (Headlamp is "ON") and when lighting switch is in the PASSING position. (Daytime light lamps are not turned off only by parking brake itself.)

A parking brake signal and engine run or stop signal are sent to BCM (body control module) by CAN communication line.

DAYTIME LIGHT OPERATION

With the engine running, the lighting switch in the OFF or 1ST position and parking brake released, power is supplied

1. Through daytime light relay terminal 1
2. To combination meter terminal 19
3. Through daytime light relay terminal 5
4. To front combination lamp LH and RH terminal 9.

Ground is supplied

1. To combination meter terminals 10, 11 and 12
2. Through grounds M57, M61 and M79, and
3. To front combination lamp RH and LH terminal 10
4. Through grounds E15 and E24.

With power and ground supplied, the daytime lights illuminate.

For auto light operation, refer to SYSTEM DESCRIPTION in AUTO LIGHT SYSTEM.

Refer to CAN COMMUNICATION .

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1. With the ignition switch OFF, connect CONSULT-II and CONSULT-II CONVERTER to the data link connector, then turn ignition switch ON.
2. Touch "START (NISSAN BASED VHCL)".
3. Touch "BCM" on "SELECT SYSTEM" screen. If "BCM" is not indicated, go to «CONSULT-II DATA LINK CONNECTOR (DLC) CIRCUIT»(ref-233642-S33893762202006052600000) .
4. Touch "HEAD LAMP" on "SELECT TEST ITEM" screen.

1. Touch "HEAD LAMP" on "SELECT TEST ITEM" screen.
2. Touch "DATA MONITOR" on "SELECT DIAG MODE" screen.
3. Touch either "ALL SIGNALS" or "SELECTION FROM MENU" on the "SELECT MONITOR ITEM" screen. DATA MONITOR DETAIL All signals Monitors all the signals. Selection from menu Selects and monitors individual signal.
4. Touch "START".
5. When "SELECTION FROM MENU" is selected, touch individual items to be monitored. When "ALL SIGNALS" is selected, all the items will be monitored.
6. Touch "RECORD" while monitoring, then the status of the monitored item can be recorded. To stop recording, touch "STOP".

1. Touch "HEAD LAMP" on "SELECT TEST ITEM" screen.
2. Touch "ACTIVE TEST" on "SELECT DIAG MODE" screen.
3. Touch item to be tested and check operation of the selected item.
4. During the operation check, touching "BACK" deactivates the operation.

1. Touch "BCM" on "SELECT TEST ITEM" screen.
2. Touch "SELF-DIAG RESULTS" on "SELECT DIAG MODE" screen.
3. Self-diagnostic results are displayed.

Automatically turns on/off the parking lamps and the headlamps in accordance with ambient light.

Timing for when the lamps turn on/off can be selected using four modes.

Refer to CAN COMMUNICATION .

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1. With the ignition switch OFF, connect CONSULT-II and CONSULT-II CONVERTER to the data link connector, then turn ignition switch ON.
2. Touch "START (NISSAN BASED VHCL)".
3. Touch "BCM" on "SELECT SYSTEM" screen. If "BCM" is not indicated, go to «CONSULT-II DATA LINK CONNECTOR (DLC) CIRCUIT»(ref-233642-S33893762202006052600000) .
4. Touch "HEAD LAMP" on "SELECT TEST ITEM" screen.

1. Touch "HEAD LAMP" on "SELECT TEST ITEM" screen.
2. Touch "WORK SUPPORT" on "SELECT DIAG MODE" screen.
3. Touch "CUSTOM A/LIGHT SETTING" or "ILL DELAY SET" on "SELECT WORK ITEM" screen.
4. Touch "START".
5. Touch "MODE 1-4" of setting to be changed (CUSTOM A/LIGHT SETTING). Touch "MODE 1-8" of setting to be changed (ILL DELAY SET).
6. Touch "CHANGE SETT".
7. The setting will be changed and "CUSTOMIZING COMPLETED" will be displayed.
8. Touch "END".

Scheme 36

1. Sensitivity of auto light can be selected and set from four modes.

1. Touch "HEAD LAMP" on "SELECT TEST ITEM" screen.
2. Touch "DATA MONITOR" on "SELECT DIAG MODE" screen.
3. Touch either "ALL SIGNALS" or "SELECTION FROM MENU" on the "SELECT MONITOR ITEM" screen. DATA MONITOR CHART All signals Monitors all the signals. Selection from menu Selects and monitors individual signal.
4. Touch "START".
5. When "SELECTION FROM MENU" is selected, touch individual items to be monitored. When "ALL SIGNALS" is selected, all the items will be monitored.
6. Touch "RECORD" while monitoring, then the status of the monitored item can be recorded. To stop recording, touch "STOP".

1. Touch "HEAD LAMP" on "SELECT TEST ITEM" screen.
2. Touch "ACTIVE TEST" on "SELECT DIAG MODE" screen.
3. Touch item to be tested and check operation of the selected item.
4. During the operation check, touching "BACK" deactivates the operation.

1. Touch "BCM" on "SELECT TEST ITEM" screen.
2. Touch "SELF-DIAG RESULTS" on "SELECT DIAG MODE" screen.
3. Self-diagnostic results are displayed.

Scheme 37

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Scheme 40

1. With the ignition switch OFF, connect CONSULT-II and CONSULT-II CONVERTER to the data link connector, then turn the ignition switch ON.
2. Touch "START (NISSAN BASED VHCL)".
3. Touch "IPDM E/R" on "SELECT SYSTEM" screen. If "IPDM E/R" is not displayed, go to «CONSULT-II DATA LINK CONNECTOR (DLC) CIRCUIT»(ref-233642-S33893762202006052600000) .
4. Select the desired part to be diagnosed on the "SELECT DIAG MODE" screen.

1. Touch "DATA MONITOR" on "SELECT DIAG MODE" screen.
2. Touch "ALL SIGNALS", "MAIN SIGNALS" or "SELECT FROM MENU" on the "SELECT MONITOR ITEM" screen. DATA MONITOR REFERENCE ALL SIGNALS All items will be monitored. MAIN SIGNALS Monitor the predetermined item. SELECT FROM MENU Select any item for monitoring.
3. Touch "START".
4. Touch the required monitoring item on "SELECT ITEM MENU". In "ALL SIGNALS", all items are monitored. In "MAIN SIGNALS", predetermined items are monitored.
5. Touch "RECORD" while monitoring to record the status of the item being monitored. To stop recording, touch "STOP".

Scheme 41

Note. Perform monitoring of IPDM E/R data with the ignition switch ON. When the ignition switch is at ACC, the display may not be correct.

Scheme 42

1. Touch "ACTIVE TEST" on "SELECT DIAG MODE" screen.
2. Touch item to be tested, and check operation.
3. Touch "START".
4. Touch "STOP" while testing to stop the operation.

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1. CHECK LIGHTING SWITCH INPUT SIGNAL With CONSULT-II Select "BCM" on CONSULT-II. With "HEAD LAMP" data monitor, make sure "AUTO LIGHT SW" turns ON-OFF linked with operation of lighting switch. When lighting switch is in: AUTO LIGHT SW ON AUTO position Without CONSULT-II Refer to «COMBINATION SWITCH INSPECTION»(ref-233676-S39849350602006052600000) . OK or NG OK: Inspection End. NG: Check lighting switch. Refer to «COMBINATION SWITCH INSPECTION»(ref-233676-S39849350602006052600000) .

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1. CHECK OPTICAL SENSOR INPUT SIGNAL With CONSULT-II Select "BCM" on CONSULT-II. With "OPTICAL SENSOR" data monitor, make sure "OPTICAL SENSOR", check difference in the voltage when the optical sensor is illuminated and not illuminated. Illuminated OPTICAL SENSOR: 3.1 V or more Not illuminated OPTICAL SENSOR: 0.6 V or less CAUTION: Optical sensor must be completely subjected to work lamp light. If the optical sensor is insufficiently illuminated, the measured value may not satisfy the standard. Without CONSULT-II GO TO 2 . OK or NG OK: Inspection End. NG: GO TO 2 .
2. CHECK OPTICAL SENSOR POWER SUPPLY CIRCUIT Turn ignition switch OFF. Disconnect BCM connector and optical sensor connector. Check continuity (open circuit) between BCM harness connector M18 terminal 17 (W/R) and optical sensor harness connector M15 terminal 1 (W/R). 17 (W/R) - 1 (W/R): Continuity should exist. Check continuity (short circuit) between BCM harness connector M18 terminal 17 (W/R) and ground. 17 (W/R) - Ground: Continuity should not exist. OK or NG OK: GO TO 3 . NG: Repair harness or connector.
3. CHECK OPTICAL SENSOR POWER SUPPLY CIRCUIT Check continuity (open circuit) between BCM harness connector M18 terminal 14 (L/Y) and optical sensor harness connector M15 terminal 2 (L/Y). 14 (L/Y) - 2 (L/Y): Continuity should exist. Check continuity (short circuit) between BCM harness connector M18 terminal 14 (L/Y) and ground. 14 (L/Y) - Ground: Continuity should not exist. OK or NG OK: GO TO 4 . NG: Repair harness or connector.
4. CHECK OPTICAL SENSOR POWER SUPPLY CIRCUIT Check continuity (open circuit) between BCM harness connector M18 terminal 18 (L/O) and optical sensor harness connector M15 terminal 3 (L/O). 18 (L/O) - 3 (L/O): Continuity should exist. Check continuity (short circuit) between BCM harness connector M18 terminal 18 (L/O) and ground. 18 (L/O) - Ground: Continuity should not exist. OK or NG OK: GO TO 5 . NG: Repair harness or connector.
5. CHECK OPTICAL SENSOR VOLTAGE Connect BCM connector. Turn ignition switch ON. Check voltage between BCM harness connector M18 terminal 17 (W/R) and ground. 17 (W/R) - Ground: Approx. 5 V should exist. OK or NG OK: Replace the optical sensor. Refer to «REMOVAL AND INSTALLATION OF OPTICAL SENSOR»(ref-233676-S41108571962006052600000) . NG: Replace BCM. Refer to «REMOVAL AND INSTALLATION of BCM»(ref-233675-S19678858802006052600000) .

Control of the fog lamps is dependent upon the position of the combination switch (lighting switch). The lighting switch must be in the 2ND position or AUTO position (LOW beam is ON) for front fog lamp operation. When the lighting switch is placed in the fog lamp position, the BCM (body control module) receives input signal requesting the fog lamps to illuminate. When the headlamps are illuminated, this input signal is communicated to the IPDM E/R (intelligent power distribution module engine room) across the CAN communication lines. The CPU (central processing unit) of the IPDM E/R controls the front fog lamp relay coil. When activated, this relay directs power to the front fog lamps.

FOG LAMP OPERATION

The fog lamp switch is built into the combination switch. The lighting switch must be in the 2ND position or AUTO position (LOW beam is ON) and the fog lamp switch must be ON for fog lamp operation.

With the fog lamp switch in the ON position, the CPU of the IPDM E/R grounds the coil side of the fog lamp relay. The fog lamp relay then directs power

1. Through IPDM E/R terminal 37
2. To front combination lamp LH terminal 11, and
3. Through IPDM E/R terminal 36
4. To front combination lamp RH terminal 11.

Ground is supplied

1. To combination lamp LH and RH terminal 12
2. Through grounds E15 and E24.

With power and ground supplied, the front fog lamps illuminate.

Refer to CAN COMMUNICATION .

TURN SIGNAL OPERATION

When the ignition switch is in the ON or START position, power is supplied

1. Through 10A fuse [No. 1, located in the fuse block (J/B)]
2. To BCM terminal 38, and
3. Through 10A fuse [No. 12, located in the fuse block (J/B)]
4. To unified meter and A/C amp. terminal 22, and
5. Through 10A fuse [No. 14, located in the fuse block (J/B)]
6. To combination meter terminal 23.

Ground is supplied

1. To BCM terminal 52
2. To unified meter and A/C amp. terminals 29 and 30
3. To combination meter terminals 10, 11 and 12
4. Through grounds M57, M61 and M79.

HAZARD LAMP OPERATION

Power is supplied at all times

1. Through 50A fusible link (letter f , located in the fuse and fusible link box)
2. To BCM terminal 55, and
3. Through 10A fuse [No. 19, located in the fuse block (J/B)]
4. To combination meter terminal 24
5. To unified meter and A/C amp. terminal 21.

Ground is supplied

1. To BCM terminal 52
2. To combination meter terminals 10, 11 and 12
3. To unified meter and A/C amp. terminals 29 and 30
4. Through grounds M57, M61 and M79.

When the hazard switch is depressed, ground is supplied

1. To BCM terminal 29
2. To hazard switch terminal 2
3. To hazard switch terminal 1
4. Through grounds M57, M61 and M79.

When the hazard switch is depressed, BCM outputs turn signal from BCM terminals 45 and 46, interpreting it as turn signal is ON.

The BCM supplies power

1. Through terminals 45 and 46
2. To front combination lamp LH and RH terminal 5
3. Through front combination lamp LH and RH terminal 10
4. To grounds E15 and E24, and
5. To rear combination lamp LH and RH terminal 3
6. Through rear combination lamp LH and RH terminal 5
7. To grounds B7 and B19.

BCM sends signal to unified meter and A/C amp through CAN communication lines and turns on turn signal indicator lamp within combination meter.

REMOTE KEYLESS ENTRY SYSTEM OPERATION

Power is supplied at all times

1. Through 50A fusible link (letter f , located in the fuse and fusible link box)
2. To BCM terminal 55, and
3. Through 10A fuse [No. 21, located in the fuse block (J/B)]
4. To BCM terminal 42, and
5. Through 10A fuse [No. 19, located in the fuse block (J/B)]
6. To unified meter and A/C amp. terminal 21
7. To combination meter terminal 24.

Ground is supplied

1. To BCM terminal 52
2. To combination meter terminals 10, 11 and 12
3. To unified meter and A/C amp. terminals 29 and 30
4. Through grounds M57, M61 and M79.

When the remote keyless entry system is triggered by input from the keyfob, BCM outputs turn signal from BCM terminals 45 and 46, interpreting it as turn signal is ON.

The BCM supplies power

1. Through terminals 45 and 46
2. To front combination lamp LH and RH terminal 5
3. Through front combination lamp LH and RH terminal 10
4. To grounds E15 and E24, and
5. To rear combination lamp LH and RH terminal 3
6. Through rear combination lamp LH and RH terminal 5
7. To grounds B7 and B19.

BCM sends signal to unified meter and A/C amp. Through CAN communication lines and turns on turn signal indicator lamp with combination meter. With power and input supplied, the BCM controls the flashing of the hazard warning lamps when keyfob is used to activate the remote keyless entry system.

Refer to CAN COMMUNICATION .

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1. With the ignition switch OFF, connect CONSULT-II and CONSULT-II CONVERTER to the data link connector, then turn ignition switch ON.
2. Touch "START (NISSAN BASED VHCL)".
3. Touch "BCM" on "SELECT SYSTEM" screen. If "BCM" is not indicated, go to «CONSULT-II DATA LINK CONNECTOR (DLC) CIRCUIT»(ref-233642-S33893762202006052600000) ".
4. Touch "FLASHER" on "SELECT TEST ITEM" screen.

1. Touch "FLASHER" on "SELECT TEST ITEM" screen.
2. Touch "DATA MONITOR" on "SELECT DIAG MODE" screen.
3. Touch either "ALL SIGNALS" or "SELECTION FROM MENU" on the "SELECT MONITOR ITEM" screen. DATA MONITOR REFERENCE All signals Monitors all the signals. Selection from menu Selects and monitors the individual signal.
4. Touch "START".
5. When "SELECTION FROM MENU" is selected, touch items to be monitored. When "ALL SIGNALS" is selected, all the items will be monitored.
6. Touch "RECORD" while monitoring, then the status of the monitored item can be recorded. To stop recording, touch "STOP".

1. Touch "FLASHER" on "SELECT TEST ITEM" screen.
2. Touch "ACTIVE TEST" on "SELECT DIAG MODE" screen.
3. Touch item to be tested and check operation of the selected item.
4. During the operation check, touching "BACK" deactivates the operation.

CORNERING LAMP OPERATION

When the ignition switch is in the ON or START position, power is supplied

1. To ignition relay, located in the IPDM E/R, and
2. Through 10A fuse [No. 1, located in the fuse block (J/B)]
3. To BCM terminal 38.

Ground is supplied

1. To BCM terminal 52
2. Through grounds M57, M61 and M79, and
3. To IPDM E/R terminals 38 and 60
4. Through grounds E15 and E24.

Refer to CAN COMMUNICATION .

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1. With the ignition switch OFF, connect CONSULT-II and CONSULT-II CONVERTER to the data link connector, then turn ignition switch ON.
2. Touch "START (NISSAN BASED VHCL)".
3. Touch "IPDM E/R" on "SELECT SYSTEM" screen. If "IPDM E/R" is not indicated, go to «CONSULT-II DATA LINK CONNECTOR (DLC) CIRCUIT»(ref-233642-S33893762202006052600000) .
4. Touch appropriate item, "DATA MONITOR" or "ACTIVE TEST" on "SELECT DIAG MODE" screen.

1. Touch "DATA MONITOR" on "SELECT DIAG MODE" screen.
2. Touch either "ALL SIGNALS", "MAIN SIGNALS" or "SELECTION FROM MENU" on the "SELECT MONITOR ITEM" screen. DATA MONITOR CHART All signals Monitors all the signals. Selection from menu Selects and monitors the individual signal.
3. Touch "START".
4. When "SELECTION FROM MENU" is selected, touch items to be monitored. When "ALL SIGNALS" is selected, all the items will be monitored.
5. Touch "RECORD" while monitoring, then the status of the monitored item can be recorded. To stop recording, touch "STOP".

Scheme 59

Note. Perform monitoring of IPDM E/R data with the ignition switch ON. When the ignition switch is at ACC, the display may not be correct.

1. Touch "ACTIVE TEST" on "SELECT DIAG MODE" screen.
2. Touch "CORNERING LAMP" on "SELECT TEST ITEM" screen.
3. Touch "RH" or "LH" item to be tested and check operation of the selected item.
4. During the operation check, touching "BACK" deactivates the operation.

Scheme 60

Scheme 61

Scheme 62

Scheme 63

Scheme 64

Scheme 65

1. ACTIVE TEST With CONSULT-II Select "IPDM E/R" on CONSULT-II, and select "ACTIVE TEST" on "SELECT DIAG MODE" screen. Select "CORNERING LAMP" on "SELECT TEST ITEM" screen. Select "RH", then "LH" on "ACTIVE TEST" screen. Make sure cornering lamp RH and cornering lamp LH operate. Without CONSULT-II GO TO 3 . OK or NG OK: GO TO 2 . NG: GO TO 3 .
2. CHECK COMBINATION SWITCH INPUT SIGNAL Select "IPDM E/R" on CONSULT-II, and select "DATA MONITOR" on "SELECT DIAG MODE" screen. Make sure "CRNRNG LMP REQ" turns ON-OFF linked with operation of lighting switch. When lighting switch is in TURN RH position: CRNRNG LMP REQ ON When lighting switch is in TURN LH position: CRNRNG LMP REQ ON OK or NG OK: Replace IPDM E/R. Refer to «REMOVAL AND INSTALLATION OF IPDM E/R»(ref-233661-S42132645482006052600000) . NG: Replace BCM. Refer to «REMOVAL AND INSTALLATION of BCM»(ref-233675-S19678858802006052600000) .
3. CHECK BULB Check bulb standard of each cornering lamp is correct. Refer to «EXTERIOR LAMP»(ref-233676-S06225393942006052600000) . OK or NG OK: GO TO 4 . NG: Replace cornering lamp bulb.
4. CHECK CORNERING LAMPS CIRCUIT Turn ignition switch OFF. Disconnect IPDM E/R connectors and cornering lamp LH and RH connectors. Check continuity between IPDM E/R harness connector E122 terminal 23 (L/O) and cornering lamp RH harness connector E137 terminal + (L/O). + (L/O) - 23 (L/O): Continuity should exist. Check continuity between IPDM E/R harness connector E124 terminal 34 (O/L) and front cornering lamp LH harness connector E43 terminal + (O/L). + (O/L) - 34 (O/L): Continuity should exist OK or NG OK: GO TO 5 . NG: Repair harness or connector.
5. CHECK GROUND Check continuity between cornering lamp LH harness connector E43 terminal - (B) and ground. - (B) - Ground: Continuity should exist. Check continuity between cornering lamp RH harness connector E137 terminal - (B) and ground. - (B) - Ground: Continuity should exist. OK or NG OK: GO TO 6 . NG: Repair harness or connector.
6. CHECK CORNERING LAMPS SHORT CIRCUIT Check continuity (short circuit) between cornering lamp LH harness connector E43 terminal + (O/L) and ground. (O/L) - Ground: Continuity should not exist. Check continuity (short circuit) between cornering lamp RH harness connector E137 terminal + (L/O) and ground. + (L/O) - Ground: Continuity should not exist. OK or NG OK: Replace IPDM E/R. Refer to «REMOVAL AND INSTALLATION OF IPDM E/R»(ref-233661-S42132645482006052600000) . NG: Repair harness or connector.

Scheme 66

Scheme 67

Scheme 68

Scheme 69

1. With the ignition switch OFF, connect CONSULT-II and CONSULT-II CONVERTER to the data link connector, then turn ignition switch ON.
2. Touch "START (NISSAN BASED VHCL)".
3. Touch "BCM" on "SELECT SYSTEM" screen. If "BCM" is not indicated, go to «CONSULT-II DATA LINK CONNECTOR (DLC) CIRCUIT»(ref-233642-S33893762202006052600000) .
4. Touch "COMB SW" on "SELECT TEST ITEM" screen.

1. Touch "COMB SW" on "SELECT TEST ITEM" screen.
2. Touch "DATA MONITOR" on "SELECT DIAG MODE" screen.
3. Touch either "ALL SIGNALS" or "SELECTION FROM MENU" on "SELECT MONITOR ITEM" screen. DATA MONITOR CHART ALL SIGNALS Monitors all the signals. SELECTION FROM MENU Selects and monitors individual signal.
4. Touch "START".
5. When "SELECTION FROM MENU" is selected, touch items to be monitored. When "ALL SIGNALS" is selected, all the signals will be monitored.
6. Touch "RECORD" while monitoring, then the status of the monitored item can be recorded. To stop recording, touch "STOP".

Power is supplied at all times

1. Through 10A fuse [No. 20, located in fuse block (J/B)]
2. To stop lamp switch terminal 1.

When the brake pedal is pressed, the stop lamp switch is closed and power is supplied

1. Through stop lamp switch terminal 2
2. To rear combination lamp LH and RH terminal 1 and
3. To high-mounted stop lamp terminal +.

Ground is supplied

1. To rear combination lamp LH and RH terminal 5
2. Through grounds B7 and B19, and
3. To high-mounted stop lamp terminal
4. Through grounds B117 and B132.

With power and ground supplied, the stop lamps illuminate.

Control of the parking, license plate, and tail lamp operation is dependent upon the position of the lighting switch (combination switch). When the lighting switch is placed in the 1ST position, the BCM (body control module) receives input signal requesting the parking, license plate, side marker and tail lamps to illuminate. This input signal is communicated to the IPDM E/R (intelligent power distribution module engine room) across the CAN communication lines. The CPU (central processing unit) of the IPDM E/R controls the tail lamp relay coil. This relay, when energized, directs power to the parking, license plate, rear side marker and tail lamps, which then illuminate.

Power is supplied at all times

1. Through 15A fuse (No. 41, located in the IPDM E/R)
2. To tail lamp relay, located in the IPDM E/R, and
3. Through 15A fuse (No. 34 located in the IPDM E/R)
4. To the CPU in the IPDM E/R, and
5. To ignition relay, located in the IPDM E/R, and
6. Through 50A fusible link (letter f, located in the fuse and fusible link box)
7. To BCM terminal 55, and
8. Through 10A fuse [No. 21, located in the fuse block (J/B)]
9. To BCM terminal 42.

With the ignition switch in the ON or START position, power is supplied

1. Through 10A fuse [No. 1, located in the fuse block (J/B)]
2. To BCM terminal 38, and
3. To ignition relay, located in the IPDM E/R.

With the ignition switch in the ACC or ON position, power is supplied

1. Through 10A fuse [No. 6, located in the fuse block (J/B)]
2. To BCM terminal 11.

Ground is supplied

1. To BCM terminal 52
2. Through grounds M57, M61 and M79, and
3. To IPDM E/R terminals 38 and 60
4. Through grounds E15 and E24.

OPERATION BY LIGHTING SWITCH

With the lighting switch in the 1ST or 2ND position (or if the auto light system is activated), the BCM receives input signal requesting the parking, license plate, side marker and tail lamps to illuminate. This input signal is communicated to the IPDM E/R across the CAN communication lines. The CPU in the IPDM E/R controls the tail lamp relay coil, which when energized, directs power

1. Through IPDM E/R terminal 22
2. To front combination lamp LH and RH terminal 6
3. To license plate lamp LH and RH terminal +
4. To rear combination lamp LH and RH terminal 2.

Ground is supplied

1. To front combination lamp LH and RH terminal 10
2. Through grounds E15 and E24, and
3. To license plate lamp LH and RH terminal
4. To rear combination lamp LH and RH terminal 5
5. Through grounds B7 and B19

With power and ground supplied, the parking, license plate, rear side marker and tail lamps illuminate.

Refer to CAN COMMUNICATION .

Scheme 70

When room lamp and personal lamp switch is in AUTO position, room lamp and personal lamp ON/OFF is controlled by timer according to signals from switches including key switch, front door switch driver side, unlock signal from keyfob, door lock and unlock switch, key cylinder lock and unlock switch, ignition switch.

When room lamp and personal lamp turns ON, there is a gradual brightening over 1 second. When room lamp and personal lamp turns OFF, there is a gradual dimming over 1 second.

The room lamp and personal lamp timer is controlled by the BCM (body control module).

Room lamp and personal lamp timer control settings can be changed with CONSULT-II.

Ignition keyhole illumination turns ON when driver door is opened (door switch ON) or key is removed from key cylinder. Illumination turns OFF when driver door is closed (door switch OFF).

Step and foot lamp turns ON when driver door, passenger or rear doors are opened (door switch ON). Lamp turns OFF when driver, passenger and rear doors are closed (all door switches OFF).

SWITCH OPERATION

When driver door switch is ON (door is opened), ground is supplied

1. To ignition keyhole illumination terminal
2. Through BCM terminal 1.

And power is supplied

1. Through BCM terminal 41
2. To ignition keyhole illumination terminal +.

When any door switch is ON (door is opened), ground is supplied

1. To front step lamp LH and RH, rear step lamp LH and RH terminal
2. Through BCM terminal 47.

And power is supplied

1. Through BCM terminal 41
2. To every step lamp terminal + and personal lamp LH and RH terminal 2.

When map lamp switch is ON, ground is supplied

1. To map lamp terminal 4
2. Through grounds M57, M61 and M79.

And power is supplied

1. Through BCM terminal 41
2. To map lamp terminal 7.

When vanity mirror lamp (driver side and passenger side) is ON, ground is supplied

1. To vanity mirror lamp (driver side and passenger side) terminal 2
2. Through grounds M57, M61 and M79.

And power is supplied

1. Through BCM terminal 41
2. To vanity mirror lamp (driver side and passenger side) terminal 1.

When rear console lamp switch is ON, ground is supplied

1. To rear console lamp terminal 4
2. Through grounds B117 and B132.

And power is supplied

1. Through BCM terminal 41
2. To rear console lamp terminal 2.

When trunk room lamp is ON, ground is supplied

1. To trunk lamp switch and trunk release solenoid (trunk lamp switch) terminal 2
2. To trunk room lamp terminal
3. To BCM terminal 57
4. Through grounds B7 and B19.

And power is supplied

1. Through 10A fuse [No. 21, located in the fuse block (J/B)]
2. To trunk room lamp terminal +.

ROOM LAMP TIMER OPERATION

When interior room lamp and map lamp switch is in AUTO position and when all conditions below are met, BCM performs timer control (maximum 30 seconds) for interior room lamp and map lamp ON/OFF.

In addition, when map turns ON or OFF there is gradual brightening or dimming over 1 second.

Power is supplied

1. Through 10A fuse [No. 21, located in the fuse block (J/B)]
2. To key switch terminal 3.

Key is removed from ignition key cylinder (key switch OFF), power will not be supplied to BCM terminal 37. Ground is supplied

1. To BCM terminal 22
2. Through main power window and door lock/unlock switch terminal 14.

At the time that driver door are opened, BCM detects that driver door is unlocked. It determines that interior room lamp and map lamp timer operation conditions are met and turns the interior room lamp and map lamp ON for 30 seconds.

Key is in ignition key cylinder (key switch ON), power is supplied

1. Through key switch terminal 4
2. To BCM terminal 37.

When key is removed from key switch (key switch OFF), power supply to BCM terminal 37 is terminated. BCM detects that key has been removed, determines that interior room lamp and map lamp timer conditions are met, and turns the interior room lamp and map lamp ON for 30 seconds.

When driver door opens --> closes and the key is not inserted in the key switch (key switch OFF), BCM terminal 62 changes between 0 V (door open) --> 12 V (door closed). The BCM determines that conditions for interior room lamp and map lamp operation are met and turns the interior room lamp ON for 30 seconds.

Timer control is canceled under the following conditions.

1. Driver door is locked (when locked by keyfob, main power window and door lock/unlock switch, or front door lock assembly (key cylinder switch)
2. Driver door is opened (driver door switch turns ON)
3. Ignition switch ON.

Scheme 71

Scheme 72

Scheme 73

Scheme 74

1. With the ignition switch OFF, connect CONSULT-II and CONSULT-II CONVERTER to the data link connector, then turn ignition switch ON.
2. Touch "START (NISSAN BASED VHCL)".
3. Touch "BCM" on "SELECT SYSTEM" screen. If "BCM" is not indicated, go to «CONSULT-II DATA LINK CONNECTOR (DLC) CIRCUIT»(ref-233642-S33893762202006052600000) .
4. Touch "INT LAMP" on "SELECT TEST ITEM" screen.

1. Touch "INT LAMP" on "SELECT TEST ITEM" screen.
2. Touch "WORK SUPPORT" on "SELECT DIAG MODE" screen.
3. Touch "SET I/L D-UNLCK INTCON" on "SELECT WORK ITEM" screen.
4. Touch "START".
5. Touch "CHANGE SETT".
6. The setting will be changed and "CUSTOMIZING COMPLETED" will be displayed.
7. Touch "END".

1. Touch "INT LAMP" on "SELECT TEST ITEM" screen.
2. Touch "DATA MONITOR" on "SELECT DIAG MODE" screen.
3. Touch either "ALL SIGNALS" or "SELECTION FROM MENU" on "SELECT MONITOR ITEM" screen. DATA MONITOR CHART All signals Monitors all the signals. Selection from menu Selects and monitors the individual signal.
4. When "SELECTION FROM MENU" is selected, touch items to be monitored. When "ALL SIGNALS" is selected, all the items will be monitored.
5. Touch "RECORD" while monitoring, then the status of the monitored item can be recorded. To stop recording, touch "STOP".

1. Touch "INT LAMP" on "SELECT TEST ITEM" screen.
2. Touch "ACTIVE TEST" on "SELECT DIAG MODE" screen.
3. Touch item to be tested and check operation of the selected item.
4. During the operation check, touching "BACK" deactivates the operation.

Control of the illumination lamps operation is dependent upon the position of the lighting switch (combination switch). When the lighting switch is placed in the 1ST or 2ND position (or if the auto light system is activated) the BCM (body control module) receives input signal requesting the illumination lamps to illuminate. This input signal is communicated to the IPDM E/R (intelligent power distribution module engine room) across the CAN communication lines. The CPU (central processing unit) of the IPDM E/R controls the tail lamp relay coil. This relay, when energized, directs power to the illumination lamps, which then illuminate.

Power is supplied at all times

1. Through 15A fuse (No. 41, located in the IPDM E/R)
2. To tail lamp relay, located in the IPDM E/R, and
3. Through 50A fusible link (letter f , located in the fuse and fusible link box)
4. To BCM terminal 55, and
5. Through 10A fuse [No.21, located in fuse block (J/B)]
6. To BCM terminal 42, and
7. Through 15A fuse (No. 34, located in the IPDM E/R)
8. To the CPU in the IPDM E/R, and
9. Through 10A fuse [No.19, located in fuse block (J/B)]
10. To combination meter terminal 24, and
11. To ignition relay, (located in the IPDM E/R), and
12. Through BCM terminal 54 (with front only power window anti-pinch system)
13. To front power window switch RH terminal 10, and
14. Through BCM terminal 54 (with front and rear power window anti-pinch system)
15. To front power window switch RH terminal 10
16. To rear power window switch (LH and RH) terminal 10, and
17. Through BCM terminal 53 (with front only power window anti-pinch system)
18. To front power window switch LH terminal 10
19. To rear power window switch (LH and RH) terminal 6, and
20. Through BCM terminal 53 (with front and rear power window anti-pinch system)
21. To front power window switch LH terminal 10.

With the ignition switch in the ON or START position, power is supplied

1. Through 10A fuse [No. 1, located in the fuse block (J/B)]
2. To BCM terminal 38, and
3. To ignition relay, located in the IPDM E/R, and
4. Through 10A fuse [No. 14, located in the fuse block (J/B)]
5. To combination meter terminal 23.

With the ignition switch in the ACC or ON position, power is supplied

1. Through 10A fuse [No. 6, located in the fuse block (J/B)]
2. To BCM terminal 11.

Ground is supplied

1. To BCM terminal 52
2. To combination meter terminals 10,11 and 12
3. Through grounds M57, M61, and M79, and
4. To IPDM E/R terminals 38 and 60
5. Through grounds E15 and E24.

ILLUMINATION OPERATION BY LIGHTING SWITCH

With the lighting switch in the 1ST or 2ND position (or if the auto light system is activated), the BCM receives input signal requesting the illumination lamps to illuminate. This input signal is communicated to the IPDM E/R across the CAN communication lines. The CPU of the IPDM E/R controls the tail lamp relay coil which, when energized, directs power

1. Through IPDM E/R terminal 22
2. To illumination control switch terminal 1
3. To glove box lamp terminal +
4. To A/T device (illumination) terminal +
5. To TCS ON/OFF switch (illumination) terminal 3 (TCS models)
6. To VDC ON/OFF switch (illumination) terminal 3 (with VDC)
7. To hazard switch (illumination) terminal 3
8. To front heated seat switch LH (illumination) terminal 5 (with heated seat)
9. To front heated seat switch RH (illumination) terminal 5 (with heated seat)
10. To AV switch (illumination) terminal 3
11. To unified meter and A/C amp. terminal 23
12. To audio unit terminal 8
13. To heated steering wheel switch terminal 3 (with heated steering wheel)
14. To interior room lamp (console box illumination) terminal 2
15. To rear sunshade switch (front and rear) terminal 5 (with rear sunshade)
16. To rear heated seat switch (LH and RH) terminal 5 (with rear heated seats).

Illumination control

1. Through illumination control switch terminal 2
2. To A/T device (illumination) terminal
3. To TCS ON/OFF switch (illumination) terminal 4 (TCS models)
4. To VDC ON/OFF switch (illumination) terminal 4 (with VDC)
5. To audio unit terminal 7
6. To hazard switch (illumination) terminal 4
7. To front heated seat switch LH (illumination) terminal 6 (with heated seat)
8. To front heated seat switch RH (illumination) terminal 6 (with heated seat)
9. To AV switch (illumination) terminal 4
10. To heated steering wheel switch (illumination) terminal 4 (with heated steering wheel)
11. To interior room lamp (console box illumination) terminal 3
12. To rear sunshade switch (front and rear) terminal 6 (with rear sunshade)
13. To rear heated seat switch (LH and RH) terminal 6 (with rear heated seats)
14. To unified meter and A/C amp. terminal 31.

Ground is supplied

1. To illumination control switch terminal 3
2. To glove box lamp terminal
3. To front power window switch LH terminal 17
4. To front power window switch RH terminal 11
5. Through grounds M57, M61 and M79, and
6. To rear power window switch LH (illumination) terminal 7 (with front only power window anti-pinch system) or terminal 11 (with front and rear power window anti-pinch system)
7. Through grounds B7 and B19, and
8. To rear power window switch RH (illumination) terminal 7 (with front only power window anti-pinch system) or terminal 11 (with front and rear power window anti-pinch system)
9. Through grounds B117 and B132.

With power and ground supplied, illumination lamps illuminate.

Refer to CAN COMMUNICATION .

Scheme 75