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) INTERMITTENT DTC
With the scan tool, erase the current Intrusion Transceiver Module DTC's.

Turn the ignition off.

Arm the VTSS and wait 1 minute.

Disarm the VTSS and turn the ignition on.

Does the scan tool display the same DTC?

Yes
1. Go to 2).
No
1. The condition that caused this symptom is currently not present. Inspect the related wiring harness for a possible intermittent condition. Look for any chafed, pierced, pinched or partially broken wires.
2. Perform BODY VERIFICATION TEST - VER 1 .
2) (A415) FUSED B+ OPEN

Fig 1: Checking Fused B(+) Circuit At Intrusion Sensor Connector With 12-Volt Test Light
Courtesy of CHRYSLER LLC

Disconnect the Intrusion Sensor connector.

Using a 12-volt test light connected to ground, check the (A415) Fused B(+) circuit in the Intrusion Sensor connector.

Does the test light illuminate brightly?

Yes
1. Go to 3).
No
1. Repair the (A415) Fused B+ circuit for an open.
2. Perform BODY VERIFICATION TEST - VER 1 .
3) (Z902) GROUND CIRCUIT OPEN

Fig 2: Checking Intrusion Sensor Ground Circuit For Open
Courtesy of CHRYSLER LLC

Using a 12-volt test light connected to 12-volts, check the (Z902) Ground circuit at the Intrusion Sensor connector.

Does the test light illuminate brightly?

Yes
1. Go to 4).
No
1. Repair the (Z902) Ground circuit for an open.
2. Perform BODY VERIFICATION TEST - VER 1 .
4) INTRUSION SENSOR

Fig 3: Checking LIN BUS Circuit For Short To Battery
Courtesy of CHRYSLER LLC

The Intrusion Sensor connector is disconnected.

Measure the voltage of the (D122) LIN Bus circuit at the Intrusion Sensor connector with the key on and off.

Observe the voltage displayed on the voltmeter.

Is the voltage between 1 and 12 volts?

Yes
1. Replace the Intrusion Sensor in accordance with the Service Information.
2. Perform BODY VERIFICATION TEST - VER 1 .
No
1. Go to 5).
5) (D122) LIN BUS CIRCUIT OPEN

Fig 4: Checking LIN BUS Circuit For Open
Courtesy of CHRYSLER LLC

Disconnect the Intrusion Sensor connector.

Disconnect the Intrusion Transceiver Module harness connector.

Measure the resistance of the (D122) LIN Bus circuit between the Intrusion Transceiver Module and the Intrusion Sensor connector.

Is the resistance below 3.0 ohms?

Yes
1. Replace the Intrusion Transceiver Module in accordance with the Service Information.
2. Perform BODY VERIFICATION TEST - VER 1 .
No
1. Repair the (D122) LIN Bus circuit for an open.
2. Perform BODY VERIFICATION TEST - VER 1 .