Determination Procedure

CAUTION:

When disconnecting the connector, verify that there is no looseness, damage, deformation, corrosion, or poor connection of the connector terminals.
When inspecting the connector, touch it with a paper clip or similar thin pin without directly inserting a tester probe into the terminal.

DETERMINING SHORT TO GROUND LOCATION (CAN-BUS No. 2) (US) DIAGNOSTIC PROCEDURE

Step	Inspection		Action
1	INSPECT CAN LINE IN BODY CONTROL MODULE (BCM) FOR SHORT TO GROUND Switch the ignition off. Disconnect the negative battery terminal. (See NEGATIVE BATTERY TERMINAL DISCONNECTION/CONNECTION (US) .) Disconnect the connector 2 which has body control module (BCM) terminals 2H and 2F. Inspect for continuity at the following terminals: Between body control module (BCM) terminal 2H (wiring harness side) and body ground Between body control module (BCM) terminal 2F (wiring harness side) and body ground Is there continuity?	Yes	Go to the next step.
1		No	Replace the body control module (BCM) because there is a short to ground in the body control module (BCM). (See BODY CONTROL MODULE (BCM) REMOVAL/INSTALLATION .)
2	INSPECT CAN LINE IN DSC HU/CM FOR SHORT TO GROUND Disconnect the DSC HU/CM connector. Inspect for continuity at the following terminals: Between DSC HU/CM terminal AQ (wiring harness side) and body ground Between DSC HU/CM terminal AN (wiring harness side) and body ground Is there continuity?	Yes	Go to the next step.
2		No	Replace the DSC HU/CM because there is a short to ground in the DSC HU/CM. (See DSC HU/CM REMOVAL/INSTALLATION [L.H.D. (US)] .)
3	INSPECT CAN LINE IN PCM FOR SHORT TO GROUND Disconnect the PCM connector. Inspect for continuity at the following terminals: Between PCM terminal 2M (wiring harness side) and body ground Between PCM terminal 2N (wiring harness side) and body ground Is there continuity?	Yes	Repair or replace the wiring harness between the PCM and DSC HU/CM and body control module (BCM) because the wiring harness is shorted to ground.
3		No	Replace the PCM because there is a short to ground in the PCM. (See PCM REMOVAL/INSTALLATION [(VIN M) (US)] .) (See PCM REMOVAL/INSTALLATION DEACTIVATION (US)].) (See PCM REMOVAL/INSTALLATION [(VIN M)] , PCM REMOVAL/INSTALLATION [(VIN 7 & VIN L)]PCM REMOVAL/INSTALLATION [(VIN Y) (US)] .)