Diagnostic Procedure

WARNING: This page is about a different car, the 2005 Nissan 350Z. However, it is still accessible from the selected car via links, so may be relevant.

CHECK CAN COMMUNICATION LINE
Perform self-diagnosis. Refer to "SELF-DIAGNOSTIC RESULT MODE ", "TCM SELF-DIAGNOSTIC PROCEDURE (NO TOOLS) ".

Is a malfunction in the CAN communication indicated in the results?
- YES: Check CAN communication line. Refer to "DTC U1000 CAN COMMUNICATION LINE ".
- 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.
3. Read out ON/OFF switching action of the "BRAKE SW".
  
  Fig 1: Item Condition Value Table
  Courtesy of NISSAN MOTOR CO., U.S.A.
  
  Fig 2: Scan Tool Display "Data Monitor"
  Courtesy of NISSAN MOTOR CO., U.S.A.
OK or NG
- OK: INSPECTION END
- NG: GO TO 3.

CHECK STOP LAMP SWITCH

Check continuity between stop lamp switch harness connector E111 terminals 1 and 2. Refer to "WIRING DIAGRAM - AT - NON-DTC ".

CONDITION AND CONTINUITY

Condition	Continuity
When brake pedal is depressed	Yes
When brake pedal is released	No

Fig 3: Stop Lamp Switch Harness Connector E111 Terminals 1 & 2 Continuity Test

Courtesy of NISSAN MOTOR CO., U.S.A.

Check stop lamp switch after adjusting brake pedal - refer to " BRAKE PEDAL " .

OK or NG

OK: INSPECTION END
NG: Check the following. 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 unified meter and A/C amp.