Electrical - SES/ABS Lamps ON/Multiple DTC's Set
Bulletin No.: 03-06-04-013Date: February 06, 2003
TECHNICAL
Subject:
Service Engine Soon/Check Engine Light and/or Anti-Lock Brake System (ABS) Warning Light Illuminated, Erratic Speedometer and/or Erratic Shifting, Multiple DTCs Set (Reposition Surge Tank Hose Clamp and Repair Wires)
Models:
2003 Cadillac DeVille
Condition
Some customers may comment on any one or more of the following conditions:
^ Service Engine Soon (U.S.) light illuminated
^ Check Engine Soon (Canada) light illuminate
^ Anti-Lock Brake (ABS) light illuminated
^ Erratic speedometer readings
^ Erratic shifting
Technicians may find multiple DTCs set including but not limited to:
^ P0340
^ P0341
^ P0410
^ P0502 P0503
Cause
This condition may be due to the metal tabs on the radiator surge tank outlet hose clamp rubbing against the engine wiring harness, creating a hole in the plastic wire conduit and damaging the wires inside.
Correction
Reposition the hose clamp and repair wires.
1. At the front of the RH Cam Shaft Cover (rear valve cover) and just above the cam position sensor, locate the metal clamp on the radiator surge tank outlet hose.
2. Rotate the hose clamp until the tabs point up.
3. Repair the damaged wires. Refer to Wiring Repairs in the Wiring Systems sub-section of the Service Manual.
Warranty Information
For vehicles repaired under warranty, use the table.
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