GM Service Manual Online
For 1990-2009 cars only

Object Number: 313527  Size: MF
Instrument Cluster and HUD Components
Cell 81: Driver Information and Head Up Display

Circuit Description

When you press the ODO/TRIP button, circuit 1326 grounds. The instrument cluster detects the ground on terminal B8 and switches the DIC display to the trip odometers.

Conditions for Setting the DTC

The DTC sets under the following conditions:

    • The ignition is in RUN.
    • The ODO/TRIP switch is stuck or shorted to ground for greater than 60 seconds.

Action Taken When the DTC Sets

When the DTC sets, the instrument cluster disables the function of the ODO/TRIP button for the remainder of that ignition cycle or the DTC is set as a history DTC. The instrument cluster displays the trip odometer message displayed when the condition was detected.

Diagnostic Aids

Test for a binding, sticking or broken ODO/TRIP button. If the ODO/TRIP button is OK, clear the DTC. Perform the Diagnostic System Check. If the DTC is set current again, refer to the DTC B1524 Odometer Switch Stuck/Shorted To Ground diagnostic table.

Step

Action

Value(s)

Yes

No

1

  1. Use a scan tool.
  2. Clear the DTC.
  3. Turn the ignition switch OFF.
  4. Disconnect the switch.
  5. Turn the ignition switch to RUN.
  6. Wait for 60 seconds.
  7. Use a scan tool in order to check for DTC B1524.

Is the DTC present?

--

Go to Step 2

Go to Step 3

2

Repair the short to ground in CKT 1326.

Is the repair complete?

--

Go to Diagnostic System Check - Instrument Cluster

--

3

Check the resistance between terminal G and terminal H.

Is the resistance less than the specified value?

5ohms

Go to Step 4

Go to Detecting Electrical Intermittents Cell 4

4

Replace the DIC switch.

Is the repair complete?

--

Go to Diagnostic System Check - Instrument Cluster

--