Test Description
WARNING: This page is about a different car, the 2004 Saturn Ion Red Line, 2004 Saturn Ion 3, 2004 Saturn Ion 2, and 2004 Saturn Ion 1. 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 determines if the fault is present.
DTC P1581
| Step | Action | Yes | No |
|---|---|---|---|
| Connector End View Reference: Cruise Control Connector End Views | |||
| 1 | Did you perform the Diagnostic System Check - Cruise Control? | Go to Step 2 | Go to Diagnostic System Check - Cruise Control (2.2L) or Diagnostic System Check - Cruise Control (2.0L) |
| 2 |
|
Go to Step 3 | Go to Diagnostic Aids |
| 3 |
|
Go to Step 7 | Go to Step 4 |
| 4 | Is the test light illuminated? | Go to Step 5 | Go to Step 6 |
| 5 | Inspect the Cruise Control Servo Move Signal circuit for short to voltage. Refer to Circuit Testing
and Wiring Repairs
in Wiring Systems. Did you find and correct the problem? |
Go to Step 9 | - |
| 6 | Inspect the Cruise Control Servo Move Signal circuit for an open or high resistance. Refer to Circuit Testing
and Wiring Repairs
in Wiring Systems. Did you find and correct the problem? |
Go to Step 9 | Go to Step 8 |
| 7 | Replace the cruise control module. Refer to Cruise Control Module Replacement . Did you complete the repair? |
Go to Step 9 | - |
| 8 |
IMPORTANT:
The replacement ECM must be programmed. Replace ECM. Refer to Engine Control Module (ECM) Replacement
in Engine Controls.Did you complete the repair? |
Go to Step 9 | - |
| 9 |
|
Go to Step 2 | System OK |