Diagnostic Test

WARNING: This page is about a different car, the 2007 Chrysler PT Cruiser. However, it is still accessible from the selected car via links, so may be relevant.

1) CHECK FOR ACTIVE DTC
With the scan tool, record and erase DTC's.

Cycle the ignition switch from off to on, leaving the ignition on for a minimum of 30 seconds.

With the scan tool, read the active DTC's.

Does the scan tool display this DTC as active?

Yes
1. Go to 2).
No
1. If the DTC is stored, check for an intermittent condition. Using the wiring diagram/schematic as a guide, visually inspect the related wiring harness connectors. Look for broken, bent, pushed out, or corroded terminals.
2) POWERTRAIN CONTROL MODULE (NGC)

Fig 1: Powertrain Control Module C1 Harness Connector
Courtesy of CHRYSLER LLC

Turn the ignition off.

Disconnect the Powertrain Control Module C1 harness connector.

Turn the ignition on, wait 30 seconds.

With the scan tool, read TIPM DTCs.

Did DTC B2188-IGNITION START CONTROL CIRCUIT LOW change from active to stored?

Yes
1. Replace the Powertrain Control Module in accordance with the service information.
2. Perform BODY VERIFICATION TEST - VER 1 .
No
1. Go to 3).
3) (F962) FUSED IGNITION SWITCH OUTPUT (START) CIRCUIT SHORT TO GROUND

Fig 2: Measuring Resistance Between Fused Ignition Switch Output (Start) Circuit & Ground
Courtesy of CHRYSLER LLC

Turn the ignition off.

Disconnect the TIPM C5 connector.

Measure the resistance between the (F962) Fused Ignition Switch Output (START) circuit and ground.

Is the resistance below 10K ohms?

Yes
1. Repair the (F962) Fused Ignition Switch Output (START) circuit for a short to ground.
2. Perform BODY VERIFICATION TEST - VER 1 .
No
1. Replace the TIPM in accordance with the service information.
2. Perform BODY VERIFICATION TEST - VER 1 .