Mazda CX-7 2007 Workshop Manual page 932

ON-BOARD DIAGNOSTIC [AW6A-EL, AW6AX-EL]
DTC P0961[AW6A-EL, AW6AX-EL]
DTC P0961 Line pressure control solenoid range/performance (stuck)
• Feedback current corresponding to solenoid current command value is irregular when engine is running.
Diagnostic support note:
• This is a continuous monitor (CCM).
• The MIL illuminates if the TCM detects the above malfunction condition during the first drive cycle.
DETECTION
• A PENDING CODE is not available.
CONDITION
• FREEZE FRAME DATA is available.
• The AT warning light illuminates.
• The DTC is stored in the TCM memory.
• ATF level low
• Deteriorated ATF
POSSIBLE
• Line pressure control solenoid stuck
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 ATF CONDITION
• Turn the ignition switch to the LOCK position.
• Inspect the ATF condition.
— Clear red: Normal
— Light red (pink): Water mixed in fluid
— Reddish brown: Deteriorated ATF
• Is it normal?
(See 05-17-10 AUTOMATIC TRANSAXLE
FLUID (ATF) INSPECTION[AW6A-EL,
AW6AX-EL].)
4 INSPECT ATF LEVEL
• Start the engine.
• Warm up the ATX.
• Is the ATF level within the specification?
(See 05-17-10 AUTOMATIC TRANSAXLE
FLUID (ATF) INSPECTION[AW6A-EL,
AW6AX-EL].)
5 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?
6 INSPECT LINE PRESSURE CONTROL
SOLENOID
• Inspect the line pressure control solenoid.
(See 05-17-20 SOLENOID VALVE
INSPECTION[AW6A-EL, AW6AX-EL].)
• Is it normal?
05-02–44
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 If the ATF color is light red or reddish brown, replace ATF,
then go to Step 7.
(See 05-17-11 AUTOMATIC TRANSAXLE FLUID (ATF)
REPLACEMENT[AW6A-EL, AW6AX-EL].)
Yes Go to the next step.
No Add ATF to the specified level, then go to Step 7.
(See 05-17-10 AUTOMATIC TRANSAXLE FLUID (ATF)
INSPECTION[AW6A-EL, AW6AX-EL].)
Yes Go to the next step.
• All ranges: Replace the oil pump or control valve body,
No
then go to the next step.
• Any ranges: Replace the ATX, then go the next step.
(See 05-17-29 AUTOMATIC TRANSAXLE REMOVAL/
INSTALLATION[AW6A-EL, AW6AX-EL].)
Yes Go to the next step.
No Replace the control valve body.
(See 05-17-38 CONTROL VALVE BODY REMOVAL/
INSTALLATION[AW6A-EL, AW6AX-EL].)
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