ON-BOARD DIAGNOSTIC SYSTEM [IMMOBILIZER SYSTEM]

id0914001068c3


WE-C, WL-3, WL-C


Outline

•  If the immobilizer system has a malfunction, the on-board diagnostic system displays the diagnostic trouble code number by flashing the security light when the engine switch is at ON position.

DTC Table

DTC

Output pattern

Description
01
ID number unregistered in immobilizer unit is input after engine switch is turned to ON position or cranking engine.
02
ID number format error (voltage range, frequency)
03
ID number is not input into immobilizer unit after engine switch is turned to ON position or cranking engine.
11
Coil or wiring harness between immobilizer unit and coil is open circuit.
21
Code word/ID number stored in immobilizer unit EEPROM cannot be read.
24
Open or short circuit in wiring harness between immobilizer unit and PCM.
30
PCM is defective. (Malfunction of communication line inside PCM)


WLT-2


Outline

•  If the immobilizer system has a malfunction, the on-board diagnostic system displays the diagnostic trouble code number by flashing the security light when the engine switch is at ON position.

DTC Table

DTC

Output pattern

Description
01
ID number unregistered in immobilizer unit is input after engine switch is turned to ON position or cranking engine .
02
ID number format error (voltage range, frequency)
03
ID number is not input into immobilizer unit after engine switch is turned to ON position or cranking engine.
11
Coil or wiring harness between immobilizer unit and coil is open circuit.
21
Code word/ID number stored in immobilizer unit EEPROM cannot be read.
24
Open or short circuit in wiring harness between immobilizer unit and DDS1.
25
IG circuit of immobilizer unit is open circuit or IG circuit of DDS1 is for short to B+ circuit.
30
DDS1 is defective. (Malfunction of communication line inside DDS1)
41
Immobilizer unit or DDS1 is defective. (Code words of immobilizer unit and DDS1 do not match)
42
DDS1 is defective. (Communication error between immobilizer unit and DDS1)
44
DDS1 is defective. (Malfunction of DDS1, except for malfunctions related to DTC 30, 41, or 42