Checking the wiring
Check the fuse before the circuit. If the fuse is blown, check the circuit. Check for a short-circuit to ground.
Check the resistance of the camshaft reset valve between terminals #1 and #2.
The resistance must be approximately 3.7 Ω.
Check the signal cable between engine control module (ECM) terminal #A21 (#A21) and camshaft reset valve terminal #2. Check for an open-circuit. Check for a short-circuit to ground.
Check the power supply cable between system relay terminal #5 and camshaft reset valve terminal #1. Check for an open-circuit.
HINT: With the ignition on and the reset valve and camshaft connector disconnected, the voltage at connector terminal #1 must be approximately U bat.
Remedy as necessary.
Other information:
- To connect the breakout box, see Connecting the breakout box
- For B6xx4x -2001, see Variable valve timing solenoid, replacing
- For B6xx4x 2002-, see Replacing the variable valve timing solenoid .
- For information about signals on 5 cylinder engines, see Signal specification
- For information about signals on 6 cylinder engines:
- For 6 cylinder engines -2001, see Signal specification
- For 6 cylinder engines 2002-, see Signal specification
- For 6 cylinder engines -2004, see Signal specification
- For 6 cylinder engines 2005-, see Signal specification .
- See Checking wiring and terminals .
- Continue
Refer to Verification