Diagnostic Procedure

CHECK CAN COMMUNICATION LINE
Perform the self-diagnosis. Refer to SELF-DIAGNOSTIC RESULT MODE .

Is a malfunction in the CAN communication indicated in the results?
1. YES: Check CAN communication line. Refer to DTC U1000 CAN COMMUNICATION LINE .
2. NO: GO TO 2.
CHECK STOP LAMP SWITCH CIRCUIT
With CONSULT-II
1. Turn ignition switch "ON". (Do not start engine.)
2. Select "ECU INPUT SIGNALS" in "DATA MONITOR" mode for "A/T" with CONSULT-II.
  
  Fig 1: Displaying CONSULT-II DATA MONITOR Screen
  Courtesy of NISSAN MOTOR CO., U.S.A.
3. Read out ON/OFF switching action of the "BRAKE SW".
OK or NG
1. OK: INSPECTION END
2. NG: GO TO 3.
CHECK STOP LAMP SWITCH
Check continuity between stop lamp switch harness connector terminals 3 and 4.

Fig 2: Continuity Reference Table
Courtesy of NISSAN MOTOR CO., U.S.A.

Fig 3: Checking Continuity Between Stop Lamp Switch Harness Connector Terminals 3 And 4
Courtesy of NISSAN MOTOR CO., U.S.A.

Check stop lamp switch after adjusting brake pedal - refer to ADJUSTMENTS .

OK or NG
1. OK: INSPECTION END
2. NG: Check the following items. If NG, repair or replace damaged parts.
  - Harness for short or open between battery and stop lamp switch.
  - Harness for short or open between stop lamp switch and combination meter.