GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 GMC_Truck 🢒 2000 🢒 GMC C-Series Medium Duty Truck B7 🢒 Engine 🢒 Engine Exhaust 🢒 Exhaust Brake Solenoid Valve Does Not Open

Step

Action

Value(s)

Yes

No

1

Disconnect the Exhaust Brake Switch.

Did the Exhaust Brake Solenoid disengage?

--

Go to Step 3

Go to Step 2

2
  1. Disconnect the Exhaust Brake Solenoid Valve harness connector.
  2. Connect a test lamp at the Exhaust Brake Solenoid Valve from terminal A to terminal B.

Did the test lamp light?

--

Go to Step 4

Go to Step 5

3

Replace the Exhaust Brake Switch.

Is the repair complete?

--

System OK

--

4
  1. Locate an open in CKT 341 (BRN) between the following components:
    2. • The Exhaust Brake Switch
    • The I/P Cluster
    • The Exhaust Brake Solenoid
  2. Repair the open.

Is the repair complete?

--

System OK

--

5

Replace the Exhaust Brake Solenoid.

Is the repair complete?

--

System OK

--