Infiniti M35/M45 Y50. Manual - part 554

 

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Infiniti M35/M45 Y50. Manual - part 554

 

 

ICC BRAKE SWITCH

EC-689

[VQ35DE]

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EC

10. 

DETECT MALFUNCTIONING PART

Check the following.

Fuse block (J/B) connector E101

10A fuse

Harness for open or short between battery and stop lamp switch

Harness for open or short between battery and ICC brake hold relay

>> Repair open circuit or short to ground or short to power in harness or connectors.

11. 

CHECK STOP LAMP SWITCH INPUT SIGNAL CIRCUIT FOR OPEN AND SHORT

1.

Disconnect ECM harness connector.

2.

Check harness continuity between the following;
ECM terminal 101 and stop lamp switch terminal 2, 
ECM terminal 101 and ICC brake hold relay terminal 5.
Refer to Wiring Diagram.

3.

Also check harness for short to ground and short to power.

OK or NG

OK

>> GO TO 13.

NG

>> GO TO 12.

12. 

DETECT MALFUNCTIONING PART

Check the following.

Harness connectors E108, M15

Harness for open or short between ECM and stop lamp switch

Harness for open or short between ECM and ICC brake hold relay

>> Repair open circuit or short to ground or short to power in harness or connectors.

13. 

CHECK STOP LAMP SWITCH

Refer to 

EC-689, "Component Inspection"

 .

OK or NG

OK

>> GO TO 14.

NG

>> Replace stop lamp switch.

14. 

CHECK ICC BRAKE HOLD RELAY

Refer to 

EC-689, "Component Inspection"

 .

OK

>> GO TO 15.

NG

>> Replace ICC brake hold relay.

15. 

CHECK INTERMITTENT INCIDENT

Refer to 

EC-153, "TROUBLE DIAGNOSIS FOR INTERMITTENT INCIDENT"

 .

>> INSPECTION END

Component Inspection

NBS0058G

ICC BRAKE SWITCH

1.

Turn ignition switch OFF.

Continuity should exist.

EC-690

[VQ35DE]

ICC BRAKE SWITCH

2.

Disconnect ICC brake switch harness connector.

3.

Check continuity between ICC brake switch terminals 1 and 2
under the following conditions.

4.

If NG, adjust ICC brake switch installation, refer to 

BR-6,

"BRAKE PEDAL"

 , and perform step 3 again.

STOP LAMP SWITCH

1.

Turn ignition switch OFF.

2.

Disconnect stop lamp switch harness connector.

3.

Check continuity between stop lamp switch terminals 1 and 2
under the following conditions.

4.

If NG, adjust stop lamp switch installation, refer to 

BR-6,

"BRAKE PEDAL"

 , and perform step 3 again.

ICC BRAKE HOLD RELAY

1.

Check continuity between ICC brake hold relay terminals 3 and
5 under the following conditions.

2.

If NG, replace ICC brake hold relay.

Condition

Continuity

Brake pedal: Fully released.

Should exist.

Brake pedal: Slightly depressed.

Should not exist.

PBIB1536E

Condition

Continuity

Brake pedal: Fully released.

Should not exist.

Brake pedal: Slightly depressed.

Should exist.

PBIA9489J

Condition

Continuity

12V direct current supply between terminals 
1 and 2

Should not exist

No current supply

Should exist

PBIB0098E

IGNITION SIGNAL

EC-691

[VQ35DE]

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EC

IGNITION SIGNAL

PFP:22448

Component Description

NBS0057O

IGNITION COIL & POWER TRANSISTOR

The ignition signal from the ECM is sent to and amplified by the power transistor. The power transistor turns
ON and OFF the ignition coil primary circuit. This ON/OFF operation induces the proper high voltage in the coil
secondary circuit.

PBIB1560E

EC-692

[VQ35DE]

IGNITION SIGNAL

Wiring Diagram

NBS0057P

TBWT1485E

 

 

 

 

 

 

 

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