Mazda 626 Station Wagon, Workshop Manual

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ON-BOARD DIAGNOSTIC
STEP INSPECTION ACTION
10 VERIFY AFTER REPAIR PROCEDURE
• Perform “After Repair Procedure".
(See K2-61 AFTER REPAIR PROCEDURE.)
• Is there any DTC present?
Yes Go to applicable DTC inspection.
No
Troubleshooting completed.
DTC P0733
DTC P0733 Gear 3 incorrect
DETECTION
CONDITION
• When all conditions below satisfied with ignition key turned to ON (start engine).
— ATF temperature 20 * C {68 * F} or above.
— Driving in 3GR at D range.
— Engine speed
450 rpm or above.
— Turbine speed within 225 — 4,988 rpm.
— Differential gear case (output) revolution speed 35 rpm or above.
— Revolution ratio of forward clutch drum revolution to differential gear case revolution below 0.863 or
1.249 or above.
— Any of DTC P0500, P0705, P0706, P0710, P0715, P0751, P0752, P0753, P0756, P0757, P0758,
P0761, P0762, P0763, P0766, P0767, P0768, P0771, P0772, or P0773 not output.
POSSIBLE
CAUSE
• ATF level low
• Deteriorated ATF
• Shift solenoids A, B, C, D, E, and pressure control solenoid stuck
• Line pressure low
• Forward clutch slipping
• 3-4 clutch slipping
• Control valve stuck
• PCM malfunction
Diagnostic procedure
STEP INSPECTION ACTION
1 VERIFY RELATED REPAIR INFORMATION
AVAILABILITY
• Check for related Service Information
availability.
• Is any related Service Information available?
Yes Perform repair or diagnosis according to available repair
information.
• If vehicle is not repaired, go to next step.
No Go to next step.
2
CHECK ATF CONDITION
• Turn ignition key to OFF.
• Check ATF condition.
— Clear red: Normal
— Milky: Water mixed in fluid
— Reddish brown: Deteriorated ATF
• Is it okay?
(See K2-28 AUTOMATIC TRANSAXLE FLUID
(ATF) INSPECTION, Automatic Transaxle Fluid
(ATF) Condition Inspection.)
Yes
Go to next step.
No
If ATF color milky or reddish brown, replace ATF, then go
to Step 4.
(See K2-29 AUTOMATIC TRANSAXLE FLUID (ATF)
REPLACEMENT.)
3
CHECK ATF LEVEL
• Start engine.
• Warm up ATX.
• Is ATF level within specification?
(See K2-28 AUTOMATIC TRANSAXLE FLUID
(ATF) INSPECTION, Automatic Transaxle Fluid
(ATF) Level Inspection.)
Yes Go to next step.
No Adjust ATF level, then go to Step 9.
(See K2-28 AUTOMATIC TRANSAXLE FLUID (ATF)
INSPECTION, Automatic Transaxle Fluid (ATF) Level
Inspection.)
4
CUCK TEST OF SOLENOID VALVES
• Turn ignition key to OFF.
• Connect NGS tester to DLC.
• Turn ignition key to ON (engine OFF).
• Access SHIFT A, SHIFT B, SHIFT C, SHIFT D,
SHIFT E, and LINE PIDs using NGS tester.
• Verify click sound of shift solenoids A, B, C,
D, E and pressure control solenoids.
• Is there a click sound?
(See K2-134 SIMULATION TEST.)
Yes Go to next step.
No Replace shift solenoids A, B, C, D, E or pressure control
solenoid, then go to Step 9.
(See K2-40 SOLENOID VALVES
REMOVAL/INSTALLATION.)
K 2-86