System Diagnosis
Use the following table to determine the procedure to use. If engine won't crank, or cranks but won't start enter ECM Diagnostic Mode and check for display code 58.
NOTE:
Code 58 will be stored for up to 50 vehicle starts. Therefore, after diagnosis is complete, be sure to clear ECM code(s).
There are five "NO START" conditions that can occur on a vehicle equipped with PASS Key that may appear to be caused by PASS Key. The five conditions are given in the following table. The first of these is almost certain to be a PASS Key problem. The second is almost certain to be a PASS Key problem. However, the problem cannot be in the lock cylinder circuits. The third and fourth can be caused by other systems on the vehicle. The fifth symptom is definitely not related to PASS Key.
SYMPTOM
| Application | Test |
|---|---|
| No crank and "Starting Disabled" Message displayed | A: Lock Cylinder & Harness Test |
| " | B: Decoder Module Test |
| No crank and ECM Code 58 present, and "Theft System Problem" displayed | B: Decoder Module Test |
| Crank but no start and "Starting Disabled" message displayed or ECM Code 58 present and "Theft System Problem" Message displayed | D: ECM Enable Test |
| No crank and No ECM Code 58 and No "Starting Disabled" Message displayed | C: Starter Enable Relay Test |
| Crank but no start and no ECM Code 58 and no messages | Chart A-3 |