Diagnostic Test

WARNING: This page is about a different car, the 2006 Chrysler PT Cruiser. However, it is still accessible from the selected car via links, so may be relevant.

1) TEST FOR INTERMITTENT CONDITION
With the scan tool, record and erase DTC's

Operate the door locks several times.

Cycle the ignition from on to off.

Turn the ignition on.

With the scan tool, read DTC's.

Does the scan tool display B1834-DRIVER DOOR UNLOCK CONTROL CIRCUIT PERFORMANCE?

Yes
1. Go To 2).
No
1. The conditions that caused this code to set are not present at this time. Using the wiring diagram/schematic as a guide, inspect the wiring and connectors.
2. Perform BODY VERIFICATION TEST - VER 1. Refer to BODY VERIFICATION TEST - VER 1 .
2) (P238) DRIVER DOOR UNLOCK DRIVER CIRCUIT SHORT TO GROUND

Fig 1: Measuring Resistance Between Ground & Driver Door Unlock Driver Circuit
Courtesy of DAIMLERCHRYSLER CORP.

Turn the ignition off.

Disconnect the Instrument Cluster C1 connector.

Measure the resistance between ground and the (P238) Driver Door Unlock Driver circuit in the Cluster C1 connector.

Is the resistance below 1,000.0 ohms?

Yes
1. Repair the (P238) Driver Door Unlock Driver circuit for a short to ground.
2. Perform BODY VERIFICATION TEST - VER 1. Refer to BODY VERIFICATION TEST - VER 1 .
No
1. Go To 3).
3) (P238) DRIVER DOOR UNLOCK DRIVER CIRCUIT SHORTED TO BATTERY

Fig 2: Measuring Voltage Between Ground & Driver Door Unlock Driver Circuit
Courtesy of DAIMLERCHRYSLER CORP.

Turn the ignition on.

Measure the voltage between ground and the (P238) Driver Door Unlock Driver circuit in the Cluster C1 connector.

Is there any voltage present?

Yes
1. Repair the (P238) Driver Door Unlock Driver circuit for a short to voltage.
2. Perform BODY VERIFICATION TEST - VER 1. Refer to BODY VERIFICATION TEST - VER 1 .
No
1. Go To 4).
4) (P238) DRIVER DOOR UNLOCK DRIVER CIRCUIT OPEN

Fig 3: Measuring Resistance Between Door Lock Driver Circuit & Driver Door Unlock Driver Circuit
Courtesy of DAIMLERCHRYSLER CORP.

Turn the ignition off.

Measure the resistance between the (P33) Door Lock Driver circuit and the (P238) Driver Door Unlock Driver circuit in the Cluster C1 connector.

Is the resistance above 4.5 ohms?

Yes
1. Check and repair (if necessary) the (P33) Door Lock Driver or the (P238) Driver Door Unlock Driver circuit for an open. If the wiring is okay, replace the driver door latch.
2. Perform BODY VERIFICATION TEST - VER 1. Refer to BODY VERIFICATION TEST - VER 1 .
No
1. Go To 5).
5) (P33) DOOR LOCK DRIVER SHORTED TO THE (P238) DRIVER DOOR UNLOCK DRIVER CIRCUIT

Fig 4: Measuring Resistance Between Door Lock Driver Circuit & Driver Door Unlock Driver Circuit
Courtesy of DAIMLERCHRYSLER CORP.

Measure the resistance between the (P33) Door Lock Driver circuit and the (P238) Driver Door Unlock Driver circuit in the Cluster C1 connector.

Is the resistance below 2.0 ohms?

Yes
1. Repair the (P33) Door Lock Driver for a short to the (P240) Passenger Doors Unlock Driver circuit.
2. Perform BODY VERIFICATION TEST - VER 1. Refer to BODY VERIFICATION TEST - VER 1 .
No
1. Replace the Instrument Cluster in accordance with service information.
2. Perform BODY VERIFICATION TEST - VER 1. Refer to BODY VERIFICATION TEST - VER 1 .