Cruise Control - Works Intermittently

9232chevy02

Number: 92-195-9B

Section: 9B

Date: MAY 1992

Corporate Bulletin No.: 268102R

ASE No.: A8


Subject:
CRUISE CONTROL WORKS INTERMITTENTLY


Model and Year:
1985-92 M VANS
1990-92 L VANS
1986-92 S/T TRUCKS


Some owners of 1985-1992 WL vehicles or 1986-1992 S/T vehicles with cruise control (RPO K34) may comment that their cruise control operates intermittently. This condition may be caused by the wires becoming pinched as they exit the multi-functional lever. These wires may ground out on the lever rod and short the cruise function. To correct this condition in production, the wiring harness that exits the lever has been rerouted and the opening in the multi-functional lever has been redesigned to allow the wires more clearance. The diagnostic procedures in the applicable Service Manual should be followed before replacing the multi-functional lever. If the multi-functional lever requires replacement, the following procedure should be performed:

SERVICE PROCEDURE:

1. Disconnect the wire harness connector.

2. Remove the harness protector cover.

3. Attach a long piece of mechanic's wire to the end of the harness connector.

4. Remove the multi-functional lever from the turn signal switch.

5. Gently pull the harness up and out so the mechanic's wire can be used to install the new unit.

6. Attach the upper end of the mechanic's wire to the new harness connector. Gently pull the mechanic's wire at the lower end of the column, feeding the harness into the proper location in the column.

7. Install a redesigned multi-functional lever (P/N 25111290) into the turn signal switch.

8. Disconnect the mechanic's wire from the harness connector.

9. Install the harness protector cover.

10. Reconnect the wire harness connector.

SERVICE PARTS INFORMATION

Part Number Description

25111290 Multi-functional Lever

Use applicable labor time guide for labor hours.

Important: The new Part Number (P/N 25111290) should be used when correcting this condition in the above listed vehicles.





Note the difference between the wire exit openings of the new multi-functional lever and the old lever (Figure 1).

Parts are currently available from GMSPO.

WARRANTY INFORMATION

For vehicles repaired under warranty use:

Labor Op. Description

E7060 Multi-functional lever, replace

Use applicable labor time guide for labor hours.