10C-16 Immobilizer Control System:
DTC P1636: Immobilizer Information Registration Failure
S5JB0EA304016
Wiring Diagram
Refer to “Immobilizer Control System Wiring Circuit Diagram: ”
DTC Detecting Condition and Trouble Area
Troubleshooting
Detecting Condition Trouble Area
The registration of the immobilizer control system
information in ECM is failed.
• CAN communication wire circuits faulty
• Steering angle sensor (if equipped) faulty
• Keyless start control module (if equipped) faulty
• 4WD control module (if equipped) faulty
• TCM (if equipped) faulty
• BCM faulty
• ABS/ESP® control module faulty
• Combination meter faulty
• ECM faulty
Step Action Yes No
1 Diagnostic Trouble Code (DTC) confirmation
1) Clear DTC(s) referring to “Diagnostic Trouble Code
(DTC) Clearance: in related manual”.
2) Turn the ignition switch to OFF position.
3) Check if any DTC is detected referring to “Diagnostic
Trouble Code (DTC) Check: in related manual”.
Is DTC P1636 still detected?
Go to Step 2. The troubleshooting is
completed.
2 Diagnostic Trouble Code (DTC) check in ECM
Is any DTC other than P1636 detected in Step 1?
Perform the
troubleshooting
referring to the
corresponding
flowchart.
Go to Step 3.
3 Diagnostic Trouble Code (DTC) check in BCM
1) Check BCM for DTC referring to “DTC Check: in
Section 10B in related manual”.
Is any DTC detected?
Perform the
troubleshooting
referring to the
corresponding flowchart
in Section 10B.
Go to Step 4.
4 Replacement of BCM
1) Replace BCM with new one referring to “BCM Removal
and Installation: in Section 10B in related manual”.
2) Check ECM for DTC referring to “Diagnostic Trouble
Code (DTC) Check: in related manual”.
Is DTC P1636 still detected?
Go to Step 5. The troubleshooting is
completed.
5 Replacement of ECM
1) Replace ECM with new one referring to “Engine Control
Module (ECM) Removal and Installation: in Section 1C
in related manual”.
2) Check ECM for DTC referring to “Diagnostic Trouble
Code (DTC) Check: in related manual”.
Is DTC P1636 still detected?
Recheck CAN
communication wire
circuits and poor
connection at ECM,
ABS/ESP® control
moduleand BCM
connectors.
The troubleshooting is
completed.
To Next Page
Loading...
Need help?
General
