Instrument Panel Harness - MIL ON/Driveability Concerns

File in Section: 06 - Engine/Propulsion System

Bulletin No.: 01-06-04-033

Date: June, 2001

TECHNICAL

Subject:
Various Driveability Symptoms - Multifunction Indicator Lamp (MIL) Illuminate Intermittently, DTCs Set, Blown Fuses (Repair Wire(s) and Secure IP Harness

Models:
2001 Chevrolet Venture
2001 Oldsmobile Silhouette
2001 Pontiac Montana
Built Between VIN Breakpoints 1D255404 and 1D291919

Condition

Some customers may comment on one or more of the following conditions:

^ Intermittent MIL/Service Engine Soon indicator illuminated

^ Antilock Brake System warning light illuminated

^ Various electrical system failures

^ Various driveability concerns

^ Blown fuses

^ A/C concerns

Cause

These conditions may be caused from the IP wiring harness chafing against the shift cable bracket. This contact may cause a rub-through to the wires enclosed in that harness, resulting in the above conditions. Damage to the harness may also result in several stored diagnostic trouble codes.

Correction

Repair any damaged wires and secure the IP harness away from shift cable bracket. Use the following procedure:





1. Inspect and repair any damaged wires at the suspected area (1). Refer to Wiring Repair in the Wiring System sub-section of the Service Manual.

2. Secure the IP harness to the brake pressure modulator valve mounting bracket at the rearward most clip slot (2) using a tie strap.

Warranty Information





For vehicles repaired under warranty, use the table as shown.





DISCLAIMER