Test Description
The number below refers to the step number on the diagnostic table.
- 3: This step tests for a short to battery positive on the Passlock™ 12-volt reference circuit.
DTC B2948
| Step | Action | Yes | No |
|---|---|---|---|
| Schematic Reference: Theft Deterrent System Schematics Connector End View Reference: Vehicle Access Connector End Views |
|||
| 1 | Did you perform the Diagnostic System Check - Vehicle? | Go to Step 2 | Go to Diagnostic System Check - Vehicle |
| 2 |
|
Go to Step 3 | Go to Testing for Intermittent Conditions and Poor Connections |
| 3 |
IMPORTANT:
The use of a DMM is crucial in this step because voltage may be measured for 10 milliseconds.
|
Go to Step 7 | Go to Step 4 |
| 4 | Test the Passlock™ 12-volt reference circuit for a short to voltage. Refer to Circuit Testing
and Wiring Repairs
. Did you find and correct the condition? |
Go to Step 10 | Go to Step 5 |
| 5 | Inspect for poor connections at the body control module (BCM). Refer to Testing for Intermittent Conditions and Poor Connections
and Connector Repairs
. Did you find and correct the condition? |
Go to Step 10 | Go to Step 6 |
| 6 | Inspect for poor connections at the Passlock™ sensor. Refer to Testing for Intermittent Conditions and Poor Connections
. Did you find and correct the condition? |
Go to Step 10 | Go to Step 8 |
| 7 | Replace the BCM. Refer to Control Module References
for replacement, setup, and programming. Did you complete the replacement? |
Go to Step 10 | - |
| 8 | Replace the Passlock™ sensor. Refer to Ignition Lock Cylinder Case Replacement
. Did you complete the replacement? |
Go to Step 9 | - |
| 9 | Perform the Passlock™ learn procedure. Refer to Programming Immobilizer System Components . Did you complete the repair? |
Go to Step 10 | - |
| 10 |
|
Go to Step 3 | System OK |