Self-Diagnostic Function

WARNING: This page is about a different variant/trim than selected.

ABS/TCS control unit has a main Central Processing Unit (CPU) and a sub-CPU that check each other and ABS and TCS system circuits. When CPUs detect a failure, ABS or TCS indicator light is turned on and a Diagnostic Trouble Code (DTC) is stored in EEPROM (nonvolatile) memory. See ABS SELF-DIAGNOSIS and TCS SELF-DIAGNOSIS tables. Self-diagnosis can be classified into detection timing categories:

Initial Diagnosis: Performed right after engine starts and until ABS indicator goes off.
Regular Diagnosis: Performed right after initial diagnosis and until ignition switch is turned off.

When a problem is detected by self-diagnosis function, ABS/TCS control unit will shift into fail-safe mode.

ABS SELF-DIAGNOSIS

ABS DTCS⁽¹⁾

Detection Timing ⁽²⁾

⁽³⁾ Fail-Safe Mode

11, 13, 15 & 17

Initial & Regular

12, 14, 16, 18, 21-24, 41-44, 51 & 52

Regular

A0 & L0

31-38 & 54

Initial & Regular

A0 & L0

61 & 62

Regular

Initial & Regular

⁽¹⁾	See ABS DIAGNOSTIC TROUBLE CODES INDEX and TCS DIAGNOSTIC TROUBLE CODES INDEX under DIAGNOSIS & TESTING.

⁽²⁾	See SELF-DIAGNOSTIC FUNCTION .

⁽³⁾	See ABS CONTROL UNIT OPERATION MODES .

TCS SELF-DIAGNOSIS

TCS DTCs⁽¹⁾

Detection Timing ⁽²⁾

⁽³⁾ Fail-Safe Mode

24-27

Initial & Regular

Initial

31, 32, 61 & 81

Regular

34 & 36

Initial & Regular

⁽¹⁾	See ABS DIAGNOSTIC TROUBLE CODES INDEX and TCS DIAGNOSTIC TROUBLE CODES INDEX under DIAGNOSIS & TESTING.

⁽²⁾	See SELF-DIAGNOSTIC FUNCTION .

⁽³⁾	See TCS CONTROL UNIT OPERATION MODES .