INSPECTION PROCEDURE 4: The "THEFT-ALARM" Indicator Light does not Illuminate.: Diagnosis

WARNING: This page is about a different car, the 2005 Dodge Stratus and 2005 Chrysler Sebring. However, it is still accessible from the selected car via links, so may be relevant.

Required Special Tools:

MB991223: Harness Set
MB991502: Scan Tool (MUT-II)

STEP 1. Check the "THEFT-ALARM" indicator light circuit of immobilizer-ECU connector C-128.
1. Disconnect the immobilizer-ECU connector C-128 and measure at the harness side.
  
  Fig 1: Identifying Connector C-128
  Courtesy of DAIMLERCHRYSLER CORPORATION
2. Connect terminal 9 to the ground.
3. Turn the ignition switch to the "ON" position.
Q: Does only the "THEFT-ALARM" indicator light illuminate? (other indicator lights are in good condition)

YES : Replace the immobilizer-ECU. Then register the password (secret code) and encrypted code HOW TO REGISTER ENCRYPTED CODE .

NO: Go to Step 2.

Fig 2: Connecting Terminal 9 To Ground
Courtesy of DAIMLERCHRYSLER CORPORATION
STEP 2. Check the "THEFT-ALARM" indicator light.
1. Remove the combination meter and remove the "THEFT-ALARM" indicator light bulb.
2. Check the bulb.
Q: Is the "THEFT-ALARM" indicator light damaged?

YES : Replace it.

NO: Go to Step 3.

Fig 3: Identifying Theft-Alarm Indicator Light
Courtesy of DAIMLERCHRYSLER CORPORATION
STEP 3. Check the combination meter power supply circuit.
1. Disconnect the combination meter connector C-101.
2. Turn the ignition switch to the "ON" position.
  
  Fig 4: Identifying Connector C-101
  Courtesy of DAIMLERCHRYSLER CORPORATION
3. Measure the voltage between terminal 1 and ground.
Q: Is the voltage approximately 12 volts (battery positive voltage)?

YES : Go to Step 6.

NO: Go to Step 4.

Fig 5: Measuring Voltage Between Terminal 1 And Ground
Courtesy of DAIMLERCHRYSLER CORPORATION
STEP 4. Check the combination meter connector C-101 for damage.
Q: Is the combination meter connector C-101 damaged?

YES : Repair or replace the connector. Refer to , HARNESS CONNECTOR INSPECTION . Confirm that scan tool MB991502 communicates normally.

NO: Go to Step 5.

Fig 6: Identifying Combination Meter Connector C-101
Courtesy of DAIMLERCHRYSLER CORPORATION
STEP 5. Check the wiring harness between combination meter connector C-101 (terminal 1) and the battery.

Fig 7: Identifying Connectors C-101, C-141
Courtesy of DAIMLERCHRYSLER CORPORATION

NOTE: Also check joint connector C-141 and C-209. If junction block connector C-141 or C-209 are damaged, repair or replace the connectors. Refer to , HARNESS CONNECTOR INSPECTION .

Q: Is the wiring harness between combination meter connector C-101 (terminal 1) and the battery damaged?

YES : Repair the wiring harness. Refer to , HARNESS CONNECTOR INSPECTION .

NO: Repair the combination meter (printed-circuit board) (Refer to P.8E-38). Then Go to Step 8.

Fig 8: Identifying Connector C-209
Courtesy of DAIMLERCHRYSLER CORPORATION
STEP 6. Check immobilizer-ECU connector C-128 and combination meter connector C-102 for damage.
Q: Are immobilizer-ECU connector C-128 and combination meter connector C-102 in good condition?

YES : Go to Step 7.

NO: Repair or replace the connector(s). Refer to , HARNESS CONNECTOR INSPECTION . Confirm that scan tool MB991502 communicates normally.

Fig 9: Identifying Connector C-102
Courtesy of DAIMLERCHRYSLER CORPORATION

Fig 10: Identifying Connector C-128
Courtesy of DAIMLERCHRYSLER CORPORATION
STEP 7. Check the wiring harness between immobilizer-ECU connector C-128 (terminal 9) and combination meter connector C-102 (terminal 47).
Q: Is the wiring harness between immobilizer-ECU connector C-128 (terminal 9) and combination meter connector C-102 (terminal 47) in good condition?

YES : Repair the combination meter (printed-circuit board) (Refer to COMBINATION METERS ASSEMBLY ). Then go to Step 8.

NO: Repair the wiring harness. Refer to , HARNESS CONNECTOR INSPECTION .

Fig 11: Identifying Connector C-102
Courtesy of DAIMLERCHRYSLER CORPORATION

Fig 12: Identifying Connector C-128
Courtesy of DAIMLERCHRYSLER CORPORATION
STEP 8. Retest the system.
Q: Is a malfunction eliminated?

YES : The procedure is complete. (If no malfunctions are found in all steps, an intermittent malfunction is suspected. Refer to HOW TO COPE WITH INTERMITTENT MALFUNCTIONS .)

NO: Go to step 1.