GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 Chevrolet 🢒 2003 🢒 Chevy Suburban - 2WD 🢒 Body and Accessories 🢒 Cruise Control 🢒 Cruise Control Indicator Always On

Step

Action

Yes

No

Schematic Reference: Cruise Control Schematics

Connector End View Reference: Cruise Control Component Views

1

Did you perform the Cruise Control Diagnostic System Check?

Go to Step 2

Go to Diagnostic System Check - Cruise Control

2

Turn the ignition ON, with the engine OFF.

Does the Cruise indicator illuminate after the IPC displays test?

Go to Step 3

Go to Testing for Intermittent Conditions and Poor Connections in Wiring Systems

3
  1. Turn the ignition OFF.
  2. Install a scan tool.
  3. Turn the ignition ON, with the engine OFF.
  4. With the scan tool, observe the Cruise Control parameter in the IPC data list.

Does the Cruise Lamp parameter display On?

Go to Step 4

Go to Step 5

4

Important: Program the replacement PCM.

Replace the PCM. Refer to the appropriate procedure:

    •  Powertrain Control Module Replacement in Engine Controls-4.8L, 5.3L, 6.0L
    •  Powertrain Control Module Replacement in Engine Controls--8.1 L

Did you complete the replacement?

Go to Step 6

--

5

Replace the Instrument Panel Cluster (IPC). Refer to Instrument Cluster Replacement in Instrument Panel, Gages, and Console.

Did you complete the replacement?

Go to Step 6

--

6

Operate the system in order to verify the repair.

Does the system operate properly?

System OK

Go to Step 2