No.3 GENERIC ELECTRONIC MODULE (GEM) DOES NOT RESPOND TO WDS OR EQUIVALENT

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STEP

INSPECTION

ACTION

1
INSPECT GEM CONNECTOR FOR DAMAGE
Turn the ignition switch off.
Disconnect the GEM connector.
Inspect the GEM connector for damage.
Is the GEM connector normal?
Yes
Go to the next step.
No
Replace the wiring harness. Perform the network test.
2
INSPECT FOR OPEN CIRCUIT BETWEEN DLC-2 AND GEM
Measure the resistance between GEM terminal 1U (harness-side) and DLC-2 terminal D.
Is the resistance less than 5 ohms?
Yes
Go to the next step.
No
Replace the wiring harness. Perform the network test.
3
INSPECT GEM OPERATION
Disconnect all the GEM connectors.
Inspection:
• Corrosion
• Terminal separation
Connect all the GEM connectors and verify that their positions are correct.
Operate the system and inspect for any malfunction.
Is any malfunction still present?
Yes
Replace the GEM.
Perform the network test.
No
The system operates normally. The malfunction may result from loose connectors or corrosion. Clear the DTC. Repeat the self-test.