Diagnostic Procedure

WARNING: This page is about a different car, the 2007 Nissan Pathfinder. However, it is still accessible from the selected car via links, so may be relevant.

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?

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.
  
  Fig 1: Identifying CONSULT II Display - DATA MONITOR
3. Read out ON/OFF switching action of the "BRAKE SW".
OK or NG

OK: INSPECTION END

NG: GO TO 3.

CHECK STOP LAMP SWITCH

Check continuity between stop lamp switch harness connector terminals 1 and 2.

CONNECTOR TERMINAL CONTINUITY CHART

Item	Condition	Terminal	Continuity
Stop lamp switch harness connector	When brake pedal is depressed	1 - 2	Yes
Stop lamp switch harness connector	When brake pedal is released	1 - 2	No

Fig 2: Checking Continuity Between Stop Lamp Switch Connector Terminals 1 And 2

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

OK or NG

OK: 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 combination meter.

NG: Repair or replace the stop lamp switch.