ICC Models

CHECK DTC WITH ICC SENSOR INTEGRATED UNIT
Refer to TROUBLE DIAGNOSIS FOR SELF-DIAGNOSTIC ITEMS .

OK or NG

OK: GO TO 2.

NG: Repair or replace.

CHECK STOP LAMP SWITCH CIRCUIT

Turn ignition switch OFF.

Check the stop lamp when depressing and releasing the brake pedal.

STOP LAMP SWITCH REFERENCE

Brake pedal	Stop lamp
Fully released	Not illuminated
Slightly depressed	Illuminated

OK or NG

OK: GO TO 5.

NG: GO TO 3.

CHECK STOP LAMP SWITCH POWER SUPPLY CIRCUIT
1. Disconnect stop lamp switch (1) harness connector.
  - ICC brake switch (2)
    
    Fig 1: Identifying Stop Lamp Switch And ICC Brake Switch
    Courtesy of NISSAN MOTOR CO., U.S.A.
2. Disconnect ICC brake hold relay (1) harness connector.
  - <=: Vehicle front
    
    Fig 2: Identifying ICC Brake Hold Relay Harness Connector
    Courtesy of NISSAN MOTOR CO., U.S.A.
3. Check voltage between stop lamp switch terminal 1 and ground with CONSULT-III or tester.
  Voltage: Battery voltage
  
  Fig 3: Checking Voltage Between Stop Lamp Switch Terminal 1 And Ground
  Courtesy of NISSAN MOTOR CO., U.S.A.
4. Check voltage between ICC brake hold relay terminal 3 and ground with CONSULT-III or tester.
  Voltage: Battery voltage
OK or NG

OK: GO TO 5.

NG: GO TO 4.

Fig 4: Checking Voltage Between ICC Brake Hold Relay Terminal 3 And Ground
Courtesy of NISSAN MOTOR CO., U.S.A.
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.
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 .
  
  Continuity should exist.
3. Also check harness for short to ground and short to power.
OK or NG

OK: GO TO 7.

NG: GO TO 6.
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.
CHECK STOP LAMP SWITCH
Refer to "COMPONENT INSPECTION ".

OK or NG

OK: GO TO 8.

NG: Replace stop lamp switch.
CHECK ICC BRAKE HOLD RELAY
Refer to "COMPONENT INSPECTION ".

OK: GO TO 9.

NG: Replace ICC brake hold relay.
CHECK INTERMITTENT INCIDENT
Refer to "TROUBLE DIAGNOSIS FOR INTERMITTENT INCIDENT ".

>> INSPECTION END