GM Service Manual Online
For 1990-2009 cars only

Cruise Control Does Not Set or Accelerate for Chevrolet Chevy P42 Commercial Chassis 1997

Cruise Control Does Not Set or Accelerate P92

P92 Cruise Control Does Not Set/Accelerate

Step

Action

Value(s)

Yes

No

1

Refer to Cruise Control Inoperative With the Switch ON before using this table.

Is the other table completed?

--

Go to Step 2

Go to other table first

2

  1. Ignition ON.
  2. Cruise control switch ON.
  3. "SET" switch depressed.
  4. Use a grounded test lamp to probe the BLK (275) wire at the cruise control switch connector.

Does the test lamp illuminate?

--

Go to Step 4

Go to Step 3

3

Replace the cruise control switch.

Is the repair complete?

--

System OK

--

4

  1. Ignition ON.
  2. Cruise control switch ON.
  3. "SET" switch depressed.
  4. Probe the BLK (275) wire at the powertrain control module (PCM) using a grounded test lamp?

Does the test lamp illuminate?

--

Go to Step 6

Go to Step 5

5

Locate and repair the open BLK (275) wire between the cruise control switch and the PCM.

Is the repair complete?

--

System OK

--

6

Replace the cruise control module.

Is the repair complete?

--

System OK

--