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.
- If the engine starts
- All OK
Repair Instructions
Perform the Diagnostic Repair Verification after completing the repair.
Control Module References for engine control module replacement, programming, and setup
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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.
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DTC P1649: Immobilizer security code not programmed
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.
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DTC P1677: Immobilizer system disabled
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.
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SEE MORE:
Diagnostic information and procedures
Specifications
FASTENER TIGHTENING SPECIFICATIONS
DIAGNOSTIC INFORMATION AND PROCEDURES
SYMPTOMS - ENGINE EXHAUST
Review the exhaust system description in order to familiarize yourself
with the exhaust system
components and the intended function of the components. Refer to Exhaust
System De
Side object sensor programming and setup
NOTE:
DO NOT program a side object sensor - left unless directed to by a
service
procedure or a service bulletin. If the side object sensor - left is not
properly configured with the correct calibration software, the side object
sensor - left will not control all of the vehicle features prope
