DTC Table: ECM

WARNING: This page is about a different car, the 2011 Suzuki SX4. However, it is still accessible from the selected car via links, so may be relevant.

NOTE: ECM detects DTC. ICM does not.

DTC CHART

DTC No.	Detecting Item	Detecting Condition	Immobilizer Indicator Light
P1614	Transponder response error	Transponder code in transponder built in ignition key cannot be read through ICM.	Flash
P1615	Steering lock unit communication error	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	ECM detects different ID codes registered in ECM and keyless start control module.	Flash
P1618	Keyless start control module CAN communication error	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 ICM and ECM.	Flash
P1622	EEPROM reading/writing 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	ICM is faulty.	Flash
P1636	Immobilizer information registration failure	Communication error between ECM and BCM.	No operation
P1638	Immobilizer information mismatched	Communication error between ECM and BCM. Wrong ECM or BCM is used.	No operation
P1645	ID code communication error	No response from ID controller	Flash or light up
P1646	ID code incorrectness	Different ID codes registered in ECM and ID controller Communication error of ECM Transponder code is not registered in ECM	Flash or light up

NOTE: If any DTC other than the above DTCs is detected, refer to DTC TABLE .