Mazda 2002 6 - Page 1092

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.
(SeeT–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)