Chevrolet Trax: DTC P1630: Immobilizer learn mode active
Diagnostic Instructions
- Perform the Diagnostic System Check - Vehicle prior to using this
diagnostic procedure.
- Review Strategy Based Diagnosis for an overview of the diagnostic
approach.
- Diagnostic Procedure Instructions provides an overview of each
diagnostic category.
DTC Descriptor
DTC P1630
Immobilizer Learn Mode Active
Circuit/System Description
When learning the security code, as well as the challenge and response
sequence, the engine control module is
placed in learn mode. Once the security code and challenge/response are learned,
learn mode will be exited
when the engine is successfully started.
Conditions for Running the DTC
The engine control module is in learn mode.
Conditions for Setting the DTC
The engine control module has not learned a security code.
Action Taken When the DTC Sets
The security indicator in the Instrument Cluster will illuminate.
Conditions for Clearing the DTC
- A current DTC P1649 will be cleared upon a successful engine start after
exit of learn mode.
- A history DTC will be cleared after 100 malfunction-free ignition
cycles.
Reference Information
Schematic Reference
Immobilizer Schematics (Encore), Immobilizer Schematics (Trax)
Connector End View Reference
WIRING SYSTEMS AND POWER MANAGEMENT - COMPONENT CONNECTOR END VIEWS -
INDEX - ENCORE WIRING SYSTEMS AND POWER MANAGEMENT - COMPONENT
CONNECTOR END VIEWS - INDEX - TRAX
Description and Operation
Immobilizer Description and Operation
Electrical Information Reference
- Circuit Testing
- Connector Repairs
- Testing for Intermittent Conditions and Poor Connections
- Wiring Repairs
Scan Tool Reference
Control Module References
Circuit/System Verification
- Verify there are no immobilizer DTCs set in the K9 Body Control Module.
- If any immobilizer DTCs are set in the K9 Body Control Module
Refer to Diagnostic Trouble Code (DTC) List - Vehicle
- If no immobilizer DTCs are set in the K9 Body Control Module
- Perform the K20 Engine Control Module immobilizer learn using the engine
control module IMMO
Learn in SPS. Refer to Immobilizer System Component Programming.
- Verify the engine starts after the K20 Engine Control Module completes
the learn procedure.
- If the engine does not start
Replace the K20 Engine Control Module.
- All OK
Repair Instructions
Perform the Diagnostic Repair Verification after completing the repair.
Control Module References for engine control module replacement, programming,
and setup
READ NEXT:
Diagnostic Instructions
Perform the Diagnostic System Check - Vehicle prior to using this
diagnostic procedure.
Review Strategy Based Diagnosis for an overview of the diagnostic
approach.
Diag
Diagnostic Instructions
Perform the Diagnostic System Check - Vehicle prior to using this
diagnostic procedure.
Review Strategy Based Diagnosis for an overview of the diagnostic
approach.
Diag
Diagnostic Instructions
Perform the Diagnostic System Check - Vehicle prior to using this
diagnostic procedure.
Review Strategy Based Diagnosis for an overview of the diagnostic
approach.
Diag
SEE MORE:
BATTERIES
NOTE: Proper operation of any electrical system or component can be
affected by
battery condition. The battery(ies) must meet or exceed minimum specification
for vehicle as equipped and test to that specific battery's CCA.
Definition of Terms
Battery Performance Testing - Testing that det
DIMENSIONS - BODY (ENCORE)
Point-to-point measurements are for reference only. All measurements are
given in millimeters. Use these
measurements for diagnosing and estimating. Point-to-point measurements are
duplicated with tram bar pointers
set at equal lengths. All die marks, holes, slots, and f