A/T Models

CHECK OVERALL FUNCTION-I

With CONSULT

Turn ignition switch ON.
Select "BRAKE SW1" in "DATA MONITOR" mode with CONSULT.

Check "BRAKE SW1" indication under the following conditions.

CONDITION	INDICATION
Brake pedal: Slightly depressed	OFF
Brake pedal: Fully released	ON

Without CONSULT

Turn ignition switch ON.

Check voltage between ECM terminal 108 and ground under the following conditions.

CONDITION	VOLTAGE
Brake pedal: Slightly depressed	Approximately 0V
Brake pedal: Fully released	Battery voltage

Fig 1: Checking ACSD Brake Switch

Courtesy of NISSAN NORTH AMERICA, INC.

OK or NG

OK: GO TO 2.

NG: GO TO 3.

CHECK OVERALL FUNCTION-II

With CONSULT

Check "BRAKE SW2" indication in "DATA MONITOR" mode.

CONDITION	INDICATION
Brake pedal: Fully released	OFF
Brake pedal: Slightly depressed	ON

Without CONSULT

Check voltage between ECM terminal 101 and ground under the following conditions.

CONDITION	VOLTAGE
Brake pedal: Fully released	Approximately 0V
Brake pedal: Slightly depressed	Battery voltage

Fig 2: Checking ACSD Brake Switch

Courtesy of NISSAN NORTH AMERICA, INC.

OK or NG

OK: INSPECTION END

NG: GO TO 7.

CHECK ASCD BRAKE SWITCH POWER SUPPLY CIRCUIT
1. Turn ignition switch OFF.
2. Disconnect ASCD brake switch (1) harness connector.
  - Stop lamp switch (2)
  Fig 3: Identifying ASCD Brake Switch Harness Connector & Stop Lamp Switch
  Courtesy of NISSAN NORTH AMERICA, INC.
3. Turn ignition switch ON.
4. Check voltage between ASCD brake switch terminal 1 and ground with CONSULT or tester.
  
  Fig 4: Checking ASCD Brake Switch Power Supply Circuit
  Courtesy of NISSAN NORTH AMERICA, INC.
  
  Voltage: Battery voltage
  
  OK or NG
  
  OK: GO TO 5.
  
  NG: GO TO 4.
DETECT MALFUNCTIONING PART
Check the following.
- Fuse block (J/B) connector E160
- 10 A fuse (No. 12)
- Harness for open or short between ASCD brake switch and fuse
  : Repair open circuit or short to ground in harness or connectors.
CHECK ASCD BRAKE SWITCH INPUT SIGNAL CIRCUIT FOR OPEN AND SHORT
1. Turn ignition switch OFF.
2. Disconnect ECM harness connector.
3. Check harness continuity between ECM terminal 108 and ASCD brake switch terminal 2.
  Refer to WIRING DIAGRAM .
  
  Continuity should exist .
4. Also check harness for short to ground and short to power.
  OK or NG
  
  OK: GO TO 6.
  
  NG: Repair open circuit or short to ground or short to power in harness or connectors.
CHECK ASCD BRAKE SWITCH
Refer to "COMPONENT INSPECTION ".

OK or NG

OK: GO TO 11.

NG: Replace ASCD brake switch. Refer to "EXPLODED VIEW ".
CHECK STOP LAMP SWITCH POWER SUPPLY CIRCUIT
1. Turn ignition switch OFF.
2. Disconnect stop lamp switch (2) harness connector.
  - ASCD brake switch (1)
    
    Fig 5: Identifying ASCD Brake Switch & Stop Lamp Switch
    Courtesy of NISSAN NORTH AMERICA, INC.
3. Check voltage between stop lamp switch terminal 1 and ground with CONSULT or tester.
  
  Fig 6: Checking Stop Lamp Switch Power Supply Circuit
  Courtesy of NISSAN NORTH AMERICA, INC.
  
  Voltage: Battery voltage
  
  OK or NG
  
  OK: GO TO 9.
  
  NG: GO TO 8.
DETECT MALFUNCTIONING PART
Check the following.
- Fuse block (J/B) connector E160
- 10 A fuse (No. 20)
- Harness for open or short between stop lamp switch and battery
  : 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 ECM terminal 101 and stop lamp switch terminal 2.
  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 10.
  
  NG: 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 11.

NG: Replace stop lamp switch. Refer to "EXPLODED VIEW ".
CHECK INTERMITTENT INCIDENT
Refer to "INTERMITTENT INCIDENT ".

: INSPECTION END