Diagnostic Procedure

WARNING: This page is about a different variant/trim than selected.

CHECK GROUND CONNECTIONS
1. Turn ignition switch OFF.
2. Loosen and retighten two engine ground screws. Refer to "GROUND INSPECTION ".
OK or NG
1. OK : GO TO 2.
2. NG : Repair or replace ground connections.
  
  Fig 1: Checking Engine Ground Connections
  Courtesy of NISSAN MOTOR CO., U.S.A.
CHECK ASCD STEERING SWITCH CIRCUIT
With CONSULT-II
1. Turn ignition switch ON.
2. Select "MAIN SW", "RESUME/ACC SW", "SET SW" and "CANCEL SW" in "DATA MONITOR" mode with CONSULT-II.
3. Check each item indication under the following conditions.
  
  Fig 2: Switch Monitor Item Condition Table
  Courtesy of NISSAN MOTOR CO., U.S.A.
  
  Fig 3: CONSULT-II Diagnosis Function Display
  Courtesy of NISSAN MOTOR CO., U.S.A.
Without CONSULT-II
1. Turn ignition switch ON.
2. Check voltage between ECM terminal 50 and ground with pressing each button.
  
  Fig 4: Switch Condition Voltage Table
  Courtesy of NISSAN MOTOR CO., U.S.A.
  
  Fig 5: Checking Voltage Between Terminal 50 And Ground
  Courtesy of NISSAN MOTOR CO., U.S.A.
OK or NG
1. OK : GO TO 8.
2. NG : GO TO 3.
CHECK ASCD STEERING SWITCH GROUND CIRCUIT FOR OPEN AND SHORT
1. Turn ignition switch OFF.
2. Disconnect ASCD steering harness connector.
3. Disconnect ECM harness connector.
4. Check harness continuity between switch terminal 2 and ECM terminal 58. Refer to Wiring Diagram .
  Continuity should exist.
5. Also check harness for short to ground or short to power.
OK or NG
1. OK : GO TO 5.
2. NG : GO TO 4.
  
  Fig 6: Identifying ASCD Steering Switch
  Courtesy of NISSAN MOTOR CO., U.S.A.
DETECT MALFUNCTIONING PART
Check the following.
- Harness connectors M71, F59
- Combination switch (spiral cable)
- Harness for open and short between ECM and ASCD steering switch
1. : Repair open circuit or short to ground or short to power in harness or connectors.
CHECK ASCD STEERING SWITCH INPUT SIGNAL CIRCUIT FOR OPEN AND SHORT
1. Check harness continuity between ECM terminal 50 and ASCD steering switch terminal 1.
  Refer to Wiring Diagram .
  
  Continuity should exist.
2. Also check harness for short to ground and short to power.
OK or NG
1. OK : GO TO 7.
2. NG : GO TO 6.
DETECT MALFUNCTIONING PART
Check the following.
- Harness connectors M71, F59
- Combination switch (spiral cable)
- Harness for open and short between ECM and ASCD steering switch
1. : Repair open circuit or short to ground or short to power in harness or connectors.
CHECK ASCD STEERING SWITCH
Refer to "COMPONENT INSPECTION ".

OK or NG
1. OK : GO TO 8.
2. NG : Replace ASCD steering switch.
CHECK INTERMITTENT INCIDENT
Refer to "TROUBLE DIAGNOSIS FOR INTERMITTENT INCIDENT ".
1. : INSPECTION END