Circuit Description
The Security Indicator Always On or Flashing check is designed to find out the reason the Security indicator is staying on or flashing. However, the Theft Deterrent System Diagnostic System Check must always be the starting point for all Passlock™ system troubleshooting.
The diagnostics in this table are designed to troubleshoot non DTC troubles. For example Battery power, Ignition 1 input, and shorted or open SECURITY indicator circuit.
Diagnostic Aids
Perform a visual check of the wiring and connectors. Refer to Testing for Intermittent Conditions and Poor Connections in Wiring Systems.
Step | Action | Yes | No |
|---|---|---|---|
1 | Did you perform the Diagnostic System Check? | Go to Step 2 | |
2 |
Does the security indicator turn off? | Go to Testing for Intermittent Conditions and Poor Connections in Wiring Systems | Go to Step 3 |
3 | Disconnect the Passlock module. Does the security indicator turn off? | Go to Step 4 | Go to Step 6 |
4 | Test the security lamp signal circuit for a short to ground. Refer to Circuit Testing and Wiring Repairs in Wiring Systems. Did you find and correct the condition? | Go to Step 9 | Go to Step 5 |
5 | Inspect for poor connections at the harness connector of the instrument panel cluster. Refer to Testing for Intermittent Conditions and Poor Connections and Connector Repairs in Wiring Systems. Did you find and correct the condition? | Go to Step 9 | Go to Step 7 |
6 | Inspect for poor connections at the harness connector of the EVO/Passlock module. Refer to Testing for Intermittent Conditions and Poor Connections and Connector Repairs in Wiring Systems. Did you find and correct the condition? | Go to Step 9 | Go to Step 8 |
7 | Replace the Instrument Cluster. Refer to Instrument Cluster Replacement in Instrument Panel, Gages, and Console. Is the repair complete? | Go to Step 9 | -- |
8 | Replace the Passlock™ module. Refer to Theft Deterrent Module Replacement . Is the repair complete? | Go to Step 9 | -- |
9 | Operate the system in order to verify the repair. Did you find and correct the condition? | System OK | Go to Step 2 |
