Mazda 2002 6 Workshop Manual page 1095

ON-BOARD DIAGNOSTIC [CRUISE CONTROL SYSTEM]
Diagnostic procedure
STEP
1 INSPECT BRAKE SWITCH
• Disconnect brake switch connector.
• Inspect brake switch.
(See P–8 BRAKE SWITCH
• Is brake switch okay?
2 INSPECT BRAKE SWITCH 2
• Inspect brake switch 2.
(See P–8 BRAKE SWITCH
• Is brake switch okay?
3 INSPECT WIRING HARNESS BETWEEN
BRAKE SWITCH AND CRUISE ACTUATOR
FOR CONTINUITY
• Disconnect cruise actuator connector.
• Is there continuity between brake switch
connector D and cruise actuator connector
C.
4 INSPECT WIRING HARNESS BETWEEN
BRAKE SWITCH 2 AND CRUISE ACTUATOR
FOR SHORT TO POWER SUPPLY
• Connect brake switch connector.
• Turn ignition switch ON position.
• Is voltage at cruise actuator connector
terminal K approximately 12 V?
End Of Sie
DTC 11
DTC 11 Cruise control switch (SET/COAST switch)
• Resistance detected between cruise actuator connector terminal J and ground is always
DETECTION
CONDITION approximately 680 ohms.
• Cruise actuator malfunction
POSSIBLE
• Cruise control switch malfunction
CAUSE
Diagnostic procedure
INSPECTION
INSPECT DTC FOR OPERATION MODE
• Was operation mode for DTC 21 performed?
End Of Sie
DTC 12
DTC 12 Cruise control switch (RESUME/ACCEL switch)
• Resistance detected between cruise actuator connector terminal J and ground is always
DETECTION
CONDITION approximately 2.2 kilohms.
POSSIBLE
• Cruise actuator malfunction
CAUSE
Diagnostic procedure
INSPECTION
INSPECT DTC FOR OPERATION MODE
• Was operation mode for DTC 22 performed?
End Of Sie
INSPECTION
INSPECTION)
INSPECTION)
Yes Go to next step.
No Replace brake switch.
Yes Go to next step.
No Replace brake switch.
Yes Go to next step.
No Repair wiring harness. (Cruise actuator—Brake switch)
Yes Replace cruise actuator.
(See T–110 CRUISE ACTUATOR REMOVAL/
INSTALLATION)
No Repair wiring harness. (Cruise actuator—Brake switch 2)
Yes Perform operation mode for DTC 21 on-board diagnostic
again. Even if no malfunction is detected in operation mode,
if DTC 11 is indicated in condition detection mode on-board
diagnostic, replace cruise actuator.
(See T–110 CRUISE ACTUATOR REMOVAL/
INSTALLATION)
No Perform operation mode for DTC 21.
Yes Perform operation mode for DTC 22 on-board diagnostic
again. Even if no malfunction is detected in operation mode,
if DTC 12 is indicated in condition detection mode on-board
diagnostic, replace cruise actuator.
(See T–110 CRUISE ACTUATOR REMOVAL/
INSTALLATION)
No Perform operation mode for DTC 22.
ACTION
A6E817266350W12
ACTION
A6E817266350W13
ACTION
T–187
T