Pontiac Repair Questions? Ask a Mechanic for Answers ASAP
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There is a bulletin from GM about this, and often the issue is a bad connector at one of the wheel speed sensors or the wiring is chaffing on the side of the transmission housing. The place to start is a thorough inspection of the wiring and terminals. If they all look good, then you will need to use a scan tool to see which wheel is causing the issue then concentrate on that wheel speed sensor and wiring.
#PIT3743B: Various ABS DTCs And Intermittent Concerns - keywords brake communication control C0035 C0036 C0037 C0040 C0041 C0042 C0045 C0046 C0047 C0050 C0052 C0460 C0461 C0187 C0196 C0252 C0253 U1000 U1300 - (Oct 19, 2009)
This PI was superseded to update model years. Please discard PIT3743A.
The following diagnosis might be helpful if the vehicle exhibits the symptom(s) described in this PI.
TAC has received several calls in regards XXXXX XXXXX 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 where it may come in contact with the transmission stud or A/C line creating a short to ground.
Inspect the complete forward engine 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 conditioning accumulator, transmission mounting studs and/or any sharp edges.