DTC 21

id0102a0033300

DTC 21

Cruise control switch (SET/COAST switch)

DETECTION CONDITION

• Resistance detected between cruise actuator connector terminal J and ground is other than approximately 680 ohms.

POSSIBLE CAUSE

• Cruise actuator malfunction
• Cruise control switch malfunction
• Clock spring malfunction
• Open circuit in wiring harness between clock spring and ground
• Open or short circuit in wiring harness between cruise actuator and clock spring

Diagnostic procedure

STEP

INSPECTION

ACTION

1
INSPECT SIGNAL LINE OF CRUISE CONTROL SWITCH POSITION
• Disconnect cruise actuator connector.
• Turn SET/COAST switch on.
• Is resistance at cruise actuator connector terminal J approximately 680 ohms?
Yes
Replace cruise actuator.
No
Go to next step.
2
INSPECT CRUISE CONTROL SWITCH
• Inspect cruise control switch.
• Is cruise control switch okay?
Yes
Go to next step.
No
Replace cruise control switch.
3
INSPECT CLOCK SPRING
• Inspect clock spring.
• Is clock spring okay?
Yes
Go to next step.
No
Replace clock spring.
4
INSPECT WIRING HARNESS BETWEEN CLOCK SPRING AND GROUND FOR CONTINUITY
• Disconnect cruise control switch connector.
• Is there continuity between clock spring connector terminal C and ground?
Yes
Repair wiring harness. (cruise actuator-clock spring)
No
Repair wiring harness. (clock spring-ground)