Checking Components and Wiring

Checking Components And Wiring







HINT: Bank 1 (cylinder row nearest the front): cylinders 1, 3, 5 and 7. Bank 2 (cylinder row furthest to the rear, nearest the passenger compartment): cylinders 2, 4, 6 and 8.

- Ignition off

Check the fuse for the circuit. If the fuse is blown, check the cable. Check for a short-circuit to ground.

Check the resistance of the reset valve.

Check the connector for relevant camshaft reset valve. Check for contact resistance and oxidation.

Disconnect the engine control module (ECM).

Check the signal cable for the relevant camshaft reset valve. Check for a short-circuit to ground.

Measure between:
- Control module #A87 (#B27) and reset valve camshaft #2, inlet (bank 1).
- Control module #A86 (#B26) and reset valve camshaft #2, inlet (bank 2).

Check the voltage supply cable for the relevant camshaft reset valve. Check for a short-circuit to supply voltage.

Measure between:
- System relay and reset valve camshaft #1, inlet (bank 1).
- System relay and reset valve camshaft #1, inlet (bank 2).

Remedy as necessary.

Other Information
- Connecting the breakout box
- Signal specification, engine control module (ECM)
- Component specifications
- Variable valve timing solenoid, replacing
- Checking wiring and terminals

Continue: Refer to Verification. Verification