ON-BOARD DIAGNOSTIC
DTC P0731
DTC P0731
Gear 1 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 1GR at D range.
— Engine speed
450 rpm or above.
— Turbine speed
within 225—4,988 rpm.
— Throttle opening angle
6.25 %
or above.
— Differential gear case (output) revolution speed
35 rpm or above.
— Revolution ratio of forward clutch drum revolution to differential gear case revolution
below 2.157.
— 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
• One-way 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
CLICK 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.)
5
INSPECT UNE PRESSURE
• Start engine.
• Measure line pressure.
Specification
Idle: 334— 470 kPa {3.4— 4.8 kgf/cm2, 49—68 psi}
Stall: 1,158—1,323 kPa {11.8—13.5 kgf/cm2,
168— 191 psi}
• Is line pressure within specification?
(See K2-21 MECHANICAL SYSTEM TEST, Line
Pressure Test.)
Yes
Go to next step.
No
• All ranges: Replace oil pump or control valve body,
then go to Step 9.
(See K2-46 CONTROL VALVE BOBY REMOVAL.)
(See K2-46 CONTROL VALVE BOBY INSTALLATION.)
(See ATX Workshop Manual FN4A-EL [1623-10-98E].)
• Any ranges: Replace ATX, then go to Step 9.
(See K2-41 AUTOMATIC TRANSAXLE (ATX)
REMOVAL/INSTALLATION.)
K 2-82
Содержание 626 Station Wagon
Страница 25: ...CONTROL SYSTEM WIRING DIAGRAM With Immobilizer System OUTLINE F1 4 ...
Страница 179: ...OUTLINE SYSTEM WIRING DIAGRAM S m ç g fT I C g 3 3 21 A m Hi p È a t ï S 3 M h d 0H ÜB 1 Hl J e F2 3 ...
Страница 183: ...CONTROL SYSTEM COMPONENT LOCATION F2 7 ...
Страница 204: ...MANUAL TRANSAXLE FEATURES OUTLINE J 2 OUTLINE OF CONSTRUCTION J 2 SPECIFICATIONS J 2 D J 1 ...
Страница 206: ...AUTOMATIC TRANSAXLE GF4A EL FEATURES OUTLINE K1 2 OUTLINE OF CONSTRUCTION K 1 2 SPECIFICATION K1 2 K1 1 ...
Страница 266: ...SHIFT MECHANISM 6 Apply grease to the cam as shown K2 59 ...
Страница 418: ...TROUBLESHOOTING KEYLESS ENTRY SYSTEM ON BOARD DIAGNOSTIC FUNCTION S 37 ...
Страница 454: ...WARNING AND INDICATOR SYSTEM O p e ra tin g O rd e r T 32 ...