Mazda CX-7 2007 Workshop Manual page 931

ON-BOARD DIAGNOSTIC [AW6A-EL, AW6AX-EL]
DTC P0942 Valve control solenoid circuit malfunction at D range (valve stuck)
• Shift solenoid A stuck
• Shift solenoid B stuck
• Shift solenoid C stuck
POSSIBLE
• C1 clutch slipping
CAUSE
• Control valve stuck
• TCM malfunction
Diagnostic procedure
STEP
1 VERIFY FREEZE FRAME DATA HAS BEEN
RECORDED
• Has the FREEZE FRAME DATA been
recorded?
2 VERIFY RELATED REPAIR INFORMATION
AVAILABILITY
• Verify related Service Bulletins and/or on-line
repair information availability.
• Is any related repair information available?
3 INSPECT LINE PRESSURE
• Start the engine.
• Measure the line pressures.
(See 05-17-3 MECHANICAL SYSTEM
TEST[AW6A-EL, AW6AX-EL].)
• Are the line pressures within the
specifications?
4 INSPECT STALL SPEED
• Measure the stall speed in D range.
(See 05-17-3 MECHANICAL SYSTEM
TEST[AW6A-EL, AW6AX-EL].)
• Is the stall speed within the specification?
5 INSPECT SOLENOID VALVE
• Inspect the solenoid valve.
(See 05-17-20 SOLENOID VALVE
INSPECTION[AW6A-EL, AW6AX-EL].)
• Is it normal?
6 VERIFY TROUBLESHOOTING OF DTC P0942
COMPLETED
• Make sure to reconnect all the disconnected
connectors.
• Clear the DTC from the memory using the M-
MDS.
• Drive the vehicle in D range and make sure
that gears shift smoothly from 1GR to 6GR.
• Is same DTC present?
7 VERIFY AFTER REPAIR PROCEDURE
• Perform the "After Repair Procedure".
(See 05-02-4 AFTER REPAIR
PROCEDURE[AW6A-EL, AW6AX-EL].)
• Are any DTCs present?
End Of Sie
INSPECTION
Yes Go to the next step.
No Record the FREEZE FRAME DATA on the repair order,
then go to the next step.
Yes Perform repair or diagnosis according to the available
repair information.
• If the vehicle is not repaired, go to the next step.
No Go to the next step.
Yes Go to the next step.
No All ranges: Replace the oil pump, then go to Step 6.
Any ranges: Replace the control valve body, then go to
Step 6.
(See 05-17-38 CONTROL VALVE BODY REMOVAL/
INSTALLATION[AW6A-EL, AW6AX-EL].)
Yes Go to the next step.
No Replace the automatic transaxle, then go the Step 6.
(See 05-17-29 AUTOMATIC TRANSAXLE REMOVAL/
INSTALLATION[AW6A-EL, AW6AX-EL].)
Yes Go to the next step.
No Replace the control valve body, then go to the next step.
(See 05-17-38 CONTROL VALVE BODY REMOVAL/
INSTALLATION[AW6A-EL, AW6AX-EL].)
Yes Replace the TCM, then go to the next step.
(See 05-17-25 TCM REMOVAL/INSTALLATION[AW6A-EL,
AW6AX-EL].)
No Go to the next step.
Yes Go to the applicable DTC inspection.
(See 05-02-5 DTC TABLE[AW6A-EL, AW6AX-EL].)
No DTC troubleshooting completed.
ACTION
05-02–43
05-02