Test Description
WARNING: This page is about a different car, the 2004 GMC Sierra and 2004 Chevrolet Silverado. However, it is still accessible from the selected car via links, so may be relevant.
The number below refers to the step number on the diagnostic table.
- 2: This step verifies that the condition is active.
- 3: This step verifies that the ignition voltage circuit to the FICM is OK. If the ignition voltage circuit is open, DTCs P1207, and P1209 may also be set.
DTC P0611
| Step | Action | Yes | No |
|---|---|---|---|
| 1 | Did you perform the Diagnostic System Check Alternative Fuels - Engine Controls? | Go to Step 2 | Go to Diagnostic System Check - Alternative Fuels (Engine Controls) |
| 2 |
|
Go to Step 3 | Go to Intermittent Conditions |
| 3 |
|
Go to Step 4 | Go to Step 5 |
| 4 | Probe the ground circuits of the FICM with a test lamp connected to B+. Does the test lamp illuminate for all circuits? |
Go to Step 7 | Go to Step 6 |
| 5 | Repair the open or short to ground on the ignition feed circuit of the FICM. Refer to
Wiring Repairs
in Wiring Systems in the C/K Pickup Service Manual. Did you complete the repair? |
Go to Step 9 | - |
| 6 | Repair the open on the ground circuit of the FICM. Refer to
Wiring Repairs
in Wiring Systems in the C/K Pickup Service Manual. Did you complete the repair? |
Go to Step 9 | - |
| 7 | Inspect for poor connections at the harness connector of the control module. Refer to
Testing for Intermittent Conditions and Poor Connections
and
Connector Repairs
in Wiring Systems in the C/K Pickup Service Manual. Did you find and correct the condition? |
Go to Step 9 | Go to Step 8 |
| 8 | Replace the FICM. Refer to Fuel Injection Control Module Replacement
. Did you complete the replacement? |
Go to Step 9 | - |
| 9 |
|
Go to Step 2 | Go to Step 10 |
| 10 | Observe the Capture Info with a scan tool. Are there any DTCs that have not been diagnosed? |
Go to Diagnostic Trouble Code (DTC) List | System OK |