Circuit Description
This DTC is set when the body control module senses incorrect Passlock™ data.
Conditions for Setting the DTC
All of the following conditions must be met:
| • | The Passlock™ option is enabled. |
| • | Ignition 0 is active. |
| • | Three consecutive bad key reads (approximately one second). |
Action Taken When the DTC Sets
| • | The body control module (BCM) enters the tamper mode. |
| • | The BCM stores DTC B3033 in the BCM memory. |
| • | The vehicle will not start. |
Conditions for Clearing the DTC
| • | The BCM goes to sleep and reinitializes with the fault cleared. |
| • | All of the BCM history codes will be cleared after 100 ignition cycles (from OFF to RUN) with no current codes active during the 100 ignition cycles. |
| • | A Scan Tool is used. |
Diagnostic Aids
| • | Inspect for a bad or broken Passlock™ sensor in the ignition switch. |
| • | When the diagnostics direct you to take the electrical measurements at the wiring harness junction blocks, refer to Power Distribution Schematics for terminal assignments of the wiring harness junction blocks. |
| • | If the DTC is a history DTC the problem may be intermittent. Perform the tests shown while wiggling the wiring and connectors. This action often causes the malfunction to appear. |
Step | Action | Value(s) | Yes | No | ||||
|---|---|---|---|---|---|---|---|---|
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Important: A short to ground will cause an open fuse(s). Before performing this diagnostic procedure, inspect the fuse(s) for an open. | ||||||||
1 | Was the Theft Deterrent Diagnostic System Check performed? | -- | Go to Step 2 | |||||
2 | Place the body control module (BCM) in auto learn. Is the BCM placed in auto learn? | -- | Go to Step 3 | -- | ||||
3 | Read the DTCs using the Scan Tool . Have any of the DTCs reset? | -- | Go to Step 4 | Go to Step 6 | ||||
4 | Diagnose and repair the DTC as necessary. Refer to Diagnostic Trouble Code (DTC) List/Type . Is the repair complete? | -- | Go to Step 6 | Go to Step 5 | ||||
5 | Replace the body control module (BCM). Refer to the following procedures:
Is the repair complete? | -- | Go to Step 6 | -- | ||||
6 | Clear the DTCs from the memory. Are the DTCs cleared from the memory? | -- | -- | |||||
