Component Tests and General Diagnostics

Checking power supply and ground terminals

Checking power supply and ground terminals




- Ignition off.
Check the fuse for the control module for four wheel drive (Active on Demand Coupling) in the integrated relay/fusebox in the engine compartment.
If the fuse is blown, fault trace the circuit between control module terminal #1 and the fuse. Check for a short-circuit to supply voltage. Check for a short-circuit to ground.
If the fuse is intact, check the cable between control module terminal #1 and the fuse. Check for an open-circuit.
Check the cable between control module terminal #2 and ground. Check for contact resistance. Check for an open-circuit. Check for a short-circuit to supply voltage.
Check the ground terminal connection. Check for contact resistance and oxidation.
Remedy as necessary.

Other information
- For the location of the relays and fuses, see the wiring diagram
- Checking wiring and terminals Checking Wiring And Terminals.













Was a fault detected?

Yes - Fault Found

No - No Fault Found

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