1.CHECK GROUND CONNECTION

1. Turn ignition switch OFF.
2. Check ground connection M95. Refer to Ground Inspection in Circuit Inspection.

Is the inspection result normal?
YES>>GO TO 2.
NO>>Repair or replace ground connection.
2.CHECK ASCD STEERING SWITCH CIRCUIT
With CONSULT-III

1. Turn ignition switch ON.
2. Select “MAIN SW”, “CANCEL SW”, “RESUME/ACC SW” and “SET SW” in “DATA MONITOR” mode with CONSULT-III.
3. Check each item indication under the following conditions.

   Monitor item | Condition | Indication
   MAIN SW | MAIN switch | Pressed | ON
   Released | OFF
   CANCEL SW | CANCEL switch | Pressed | ON
   Released | OFF
   RESUME/ACC SW | RESUME/ACCELERATE switch | Pressed | ON
   Released | OFF
   SET SW | SET/COAST switch | Pressed | ON
   Released | OFF

Without CONSULT-III

1. Turn ignition switch ON.
2. Check the voltage between ECM harness connector terminals under the following conditions.

   ECM | Condition | Voltage (V)
   Connector | + | –
   Terminal | Terminal
   M107 | 102 (ASCD steering switch signal) | 74 | MAIN switch: Pressed | Approx. 0
   CANCEL switch: Pressed | 0.9 - 1.5
   SET/COAST switch: Pressed | 1.9 - 2.4
   RESUME/ACCELERATE switch: Pressed | 3.0 - 3.3
   All ASCD steering switches: Released | 4.0 - 4.2

Is the inspection result normal?
YES>>GO TO 8.
NO>>GO TO 3.
3.CHECK ASCD STEERING SWITCH GROUND CIRCUIT FOR OPEN AND SHORT

1. Turn ignition switch OFF.
2. Disconnect ECM harness connector.
3. Disconnect combination switch (spiral cable) harness connector.
4. Check the continuity between combination switch (spiral cable) and ECM harness connector.

   Combination switch (spiral cable) | ECM | Continuity
   Connector | Terminal | Connector | Terminal
   M303 | 16 | M107 | 74 | Existed

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

Is the inspection result normal?
YES>>GO TO 5.
NO>>GO TO 4.
4.DETECT MALFUNCTIONING PART
Check the following.

- Combination switch (spiral cable)
- Harness for open and short between ECM and combination switch (spiral cable)

>>Repair open circuit, short to ground or short to power in harness or connectors.
5.CHECK ASCD STEERING SWITCH INPUT SIGNAL CIRCUIT FOR OPEN AND SHORT

1. Check the continuity between combination switch (spiral cable) and ECM harness connector.

   Combination switch (spiral cable) | ECM | Continuity
   Connector | Terminal | Connector | Terminal
   M303 | 13 | M107 | 102 | Existed

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

Is the inspection result normal?
YES>>GO TO 7.
NO>>GO TO 6.
6.DETECT MALFUNCTIONING PART
Check the following.

- Combination switch (spiral cable)
- Harness for open and short between ECM and combination switch (spiral cable)

>>Repair open circuit, short to ground or short to power in harness or connectors.
7.CHECK ASCD STEERING SWITCH
Refer to Component Inspection (GT-R certified NISSAN dealer).
Is the inspection result normal?
YES>>GO TO 8.
NO>>Replace ASCD steering switch.
8.CHECK INTERMITTENT INCIDENT
Refer to Intermittent Incident.
>>INSPECTION END