Mazda 6 2002, Workshop Manual

Page: 1092 / 1248

T–184
ON-BOARD DIAGNOSTIC [CRUISE CONTROL SYSTEM]
End Of Sie
DTC 37
A6E817266350W07
Diagnostic procedure
5 INSPECT TR SWITCH
•
Inspect TR switch.
(See K–14 TRANSAXLE RANGE (TR) SWITCH
INSPECTION )
•
Is TR switch okay?
Yes Go to next step.
No Repair TR switch.
(See
K–15 TRANSAXLE RANGE (TR) SWITCH REMOVAL/
INSTALLATION )
* 6 INSPECT WIRING HARNESS BETWEEN TR
SWITCH AND GROUND FOR CONTINUITY
•
Disconnect TR switch connector.
•
Is there continuity between TR switch
connector terminal A and ground?
Yes Go to next step.
No Repair wiring harness (TR switch—ground ) or inspect
starter.
* 7 INSPECT WIRING HARNESS BETWEEN
CRUISE ACTUATOR AND TR SWITCH FOR
CONTINUITY
•
Disconnect cruise actuator connector.
•
Is there continuity between cruise actuator
connector terminal F and TR switch
connector terminal F?
Yes Replace cruise actuator.
(See
T–110 CRUISE ACTUATOR REMOVAL/
INSTALLATION )
No Repair wiring harness. (cruise actuator—TR switch)
STEP INSPECTION ACTION
DTC 37 Vehicle speed sensor
DETECTION
CONDITION
•
Vehicle speed signal is not detected at cruise actuator connector terminal A.
POSSIBLE
CAUSE
•
Cruise actuator malfunction
•
DSC HU/CM (with ABS/TCS HU/CM)
•
Open or short circuit in wiring harness between ABS/TCS cruise actuator and DSC HU/CM (without
DSC: ABS/TCS HU/CM)
STEP INSPECTION ACTION
1 INSPECT SPEEDOMETER OPERATION
•
Does speedometer operate correctly?
Yes Go to next step.
No Perform instrument cluster input/output check
mode.
(See
T–75 INSTRUMENT CLUSTER INPUT/
OUTPUT CHECK MODE )
2 INSPECT PCM ON-BOARD DIAGNOSTIC
•
Drive the vehicle at more than 40 km/h {25 mph} .
•
Check the DTC for PCM ON-BOARD
DIAGNOSTIC.
•
Is DTC P0500 displayed?
Yes Go to applicable DTC inspection.
No Go to next step.
* 3 VERIFY WHICH IS MALFUNCTIONING‚ WIRING
HARNESS WITH DSC OR CRUISE ACTUATOR
•
Disconnect cruise actuator connector and DSC
HU/CM connector.
•
Is there continuity between cruise actuator
connector terminal A and DSC HU/CM connector
terminal AE?
With ABS/TCS
•
Disconnect cruise actuator connector and ABS/
TCS HU/CM connector.
•
Is there continuity between cruise actuator
connector terminal A and ABS/TCS connector
terminal V?
Yes Replace cruise actuator.
(See
T–110 CRUISE ACTUATOR REMOVAL/
INSTALLATION )
No Repair wiring harness.
With DSC
(DSC HU/CM—Cruise actuator)
With ABS/TCS
(ABS/TCS HU/CM—Cruise actuator)