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Various ABS DTCs And Intermittent Concerns - keywords ABS brake communication control c0035 c0036 c0037 c0040 c0041 c0042 c0045 c0046 c0047 c0050 c0052 c0460 c0461 c0187 c0196 c0252 c0253 u1000 u1300

Subject:Various ABS DTCs and Intermittent Concerns

Models:2005-2007 Buick Terraza
2005-2007 Chevrolet Uplander
2005-2007 Pontiac Montana SV6
2005-2007 Saturn Relay



This PI was superseded to update model years and keywords. Please discard PIT3743.


The following diagnosis might be helpful if the vehicle exhibits the symptom(s) described in this PI.

Condition/Concern:

Tac has received several calls in regards intermittent DTCs C0460, C0461 (Steering Position Sensors), C0187 (Lateral Accelerometer Circuit Range/Performance), C0196 (Yaw Rate Circuit) and/or C0252 (VSES sensor uncorrelated). Initial investigation has found the forward engine harness routed from the EBCM, underneath the inlet air breather box and across/down the transmission may have several points were it may come it contact with the transmission stud or A/C line creating a short to ground.

Recommendation/Instructions:

Inspect the complete forward wiring harness and repair as needed, wrap with protective tape inside and outside the conduit. The harness should be re-routed to avoid contact with the air condition accumulator, transmission mounting studs and or any sharp edges.

Please follow this diagnostic or repair process thoroughly and complete each step. If the condition exhibited is resolved without completing every step, the remaining steps do not need to be performed.