Diagnostic Test
WARNING: This page is about a different car, the 2010 Dodge Charger and 2010 Chrysler 300. However, it is still accessible from the selected car via links, so may be relevant.
- CHECK FOR ACTIVE DIAGNOSTIC TROUBLE CODE (DTC)
- With the scan tool, read the active DTCs.
- Erase the DTCs.
- Turn the ignition off, wait 10 seconds, then turn the ignition on.
- With the scan tool, read the active DTCs.
Does the scan tool display this DTC as active?
Yes
- Go to step 2
No
- If the DTC is stored, check for an intermittent condition. Visually inspect the related wiring harness connectors. Look for broken, bent, pushed out, or corroded terminals, and repair any obvious problems.
- Perform the BODY VERIFICATION TEST. Refer to DTC-Based Diagnostics/MODULE, Totally Integrated Power (TIPM) - Standard Procedure .
- CHECK THE (W527) VSIM CAN B BUS (-) CIRCUIT FOR AN OPEN
- Turn the ignition off.
- Disconnect the Multi-Purpose Module (Police And Taxi Interface Module-PTIM) C1 harness connector.
- Disconnect the Multi-Purpose Module (Police And Taxi Interface Module-PTIM) 24 way harness connector (aftermarket light/siren controller side).
- Measure the resistance of the (W527) VSIM CAN B Bus (-) circuit between the Multi-Purpose Module (Police And Taxi Interface Module-PTIM) C2 connector and the Multi-Purpose Module (Police And Taxi Interface Module-PTIM) 24 way harness connector (aftermarket light/siren controller side).
Is the resistance below 5.0 ohms?
Yes
- Inspect the wiring and connectors for damage or shorted circuits. If ok, replace the TIPM in accordance with the Service Information.
- Perform the BODY VERIFICATION TEST. Refer to DTC-Based Diagnostics/MODULE, Totally Integrated Power (TIPM) - Standard Procedure .
No
- Repair the (W528) Multi-Purpose Module (Police And Taxi Interface Module-PTIM) CAN B Bus (-) circuit for an open.
- Perform the BODY VERIFICATION TEST. Refer to DTC-Based Diagnostics/MODULE, Totally Integrated Power (TIPM) - Standard Procedure .