DTC 34: Connector Lock System Detects Connector Unlocked: 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 Tool:

MB991502: Scan Tool (MUT-II)

STEP 1. Check the SRS-ECU connectors C-137 < Vehicles without SRS side-airbag >/C-137 and C-145 < Vehicles with SRS side-airbag >.
Q: Are the connectors correctly engaged?

YES : Go to Step 2.

NO: Engage the connectors correctly. Then go to Step 3.

Fig 1: Identifying Connectors C-137, C-145
Courtesy of DAIMLERCHRYSLER CORPORATION
STEP 2. Check the SRS-ECU connectors C-137 < Vehicles without SRS side-airbag >/C-137 and C-145 < Vehicles with SRS side-airbag > for damage.
1. Disconnect the SRS-ECU connectors C-137 and C-145.
  
  Fig 2: Identifying SRS-ECU Connectors C-137 And C-145
  Courtesy of DAIMLERCHRYSLER CORPORATION
2. Check the connector lock switch terminal inside the harness side connector for improper contact or deformation.
Q: Are the SRS-ECU connector C-137 and C-145 in good condition?

YES : Erase the DTC memory, and recheck if any DTC sets. If DTC 34 sets, replace the SRS-ECU (Refer to SRS CONTROL UNIT (SRS-ECU) ). Then go to Step 3.

NO: Repair or replace the SRS-ECU connectors C-137, C-145. Refer to , HARNESS CONNECTOR INSPECTION . Then go to Step 3.

Fig 3: Identifying Connector Lock Switch Terminal
Courtesy of DAIMLERCHRYSLER CORPORATION
STEP 3. Check for DTC.
Q: Is DTC 34 set?

YES : There is no action to be taken.

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