Operation CHARM: Car repair manuals for everyone.

Troubleshooting Hints


1. Check the Ignition Key for a cracked resistor pellet or a pellet that is dirty or coated. Also check that the Ignition Key is free from excess plastic around the resistor pellet contacts.

2. Check owner's Ignition Key using the J 35628 PASS-Key(R)II Interrogator or equivalent. If the Keycode window shows "E," replace the owner's key. (See "Key Replacement.") Duplication of Keys

3. Check the key pellet sensing contacts in the Ignition Lock Cylinder by looking into the key opening. If the contacts are damaged or not silver in color, replace the Lock Cylinder.

4. Check I/P Fuses #24 and #33 by visual inspection.

5. If the PASS Key(R)II System is intermittent, check that the connector to the Central Control Module (CCM) is tight and the terminals are clean. Also check the CCM grounds.

6. If the Theft Deterrent Relay must be replaced, also check CKT 575 to the Starter Solenoid for a possible short. A short may have caused the relay to fail.

7. To check the contacts to the key and the wires in the Steering Column, disconnect the connector near the base of the column. Measure the resistance back to the key at this connector while you turn and adjust the Steering Wheel. If there is any change or intermittent reading, replace the Lock Cylinder and the Steering Column wires that come with it. See STEERING AND SUSPENSION. Steering and Suspension

- Check for a broken (or partially broken) wire inside of the insulation which could cause system malfunction but prove "GOOD" in a continuity/voltage check with a system disconnected. These circuits may be intermittent or resistive when loaded, and if possible, should be checked by monitoring for a voltage drop with the system operational (under load).

- Check for proper installation of aftermarket electronic equipment which may affect the integrity of other systems (see "Troubleshooting Procedures," DIAGRAMS).