Immobilizer Control System: 10C-3
Diagnostic Information and Procedures
Diagnostic Trouble Code (DTC) Table
S5JB0EA304004
ECM
NOTE
ECM detects diagnostic trouble code (DTC). Immobilizer control module (ICM) does not.
NOTE
If any DTC other than the above DTCs is detected, refer to “DTC Table: in Section 1A”.
DTC No. Detecting Item Detecting Condition
Immobilizer
Indicator
Lamp
P1614 Transponder response error
Transponder code in the transponder built in
the ignition key cannot be read through
immobilizer control module (ICM).
Flash
P1615
Steering lock unit communication error (for
vehicle with keyless start system)
• While registering the transponder code in
the transponder built in the ignition key in
ECM, the keyless start control module sent
a signal to ECM indicating that the ID code
could not be registered.
• The ID code could not be registered in the
keyless start control module or ECM.
Flash
P1616
Unregistered keyless start control module (for
vehicle with keyless start system)
ECM detects different ID codes registered in
ECM and keyless start system.
Flash
P1618
Keyless start control module CAN
communication error (for vehicle with keyless
start system)
Reception error of communication data for
keyless start control module is detected for
longer than specified time continuously.
Flash
P1621 Immobilizer communication line error
Communication error between immobilizer
control module (ICM) and ECM is detected by
ECM.
Flash
P1622 EEPROM read/write error EEPROM in ECM is corrupted. Flash
P1623 Unregistered transponder
Transponder code in the transponder built in
the ignition key is invalid.
Flash
P1625 Immobilizer antenna error Immobilizer control module (ICM) is faulty. Flash
P1636 Immobilizer information registration failure
Communication error between ECM and
BCM is detected by ECM.
No operation
P1638 Immobilizer information mismatched
• Communication error between ECM and
BCM is detected by ECM.
• Wrong ECM or BCM is used.
No operation
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