ON-BOARD DIAGNOSTIC
K2–143
K2
End Of Sie
5 INSPECT LINE PRESSURE
• Start engine.
• Measure line pressure.
Specification
— D range, M (2GR) range
Idle: 290—490 kPa {3.0—4.9 kgf/cm
2
, 43—69
psi}
Stall: 1,550—1,750 kPa {15.8—17.8 kgf/cm
2
,
225—254 psi}
— M (1GR) range, R position
Idle:550—750 kPa {5.6—7.6 kgf/cm
2
, 80—
109 psi}
Stall: 1,550—1,750 kPa {15.8—17.8 kgf/cm
2
,
225—254 psi}
• Is line pressure within specification?
(See K2–72 Line Pressure Test.)
Yes Go to next step.
No All ranges: Replace or overhaul oil pump or control valve
body, then go to Step 10.
Any ranges: Replace or overhaul automatic transaxle, then
go to Step 10.
(See K2–99 AUTOMATIC TRANSAXLE AND TRANSFER
REMOVAL/INSTALLATION.)
6 CLICK TEST OF SOLENOID VALVES
• Turn ignition key to OFF.
• Disconnect terminal component No.1(12-pin).
• Apply battery voltage to terminal component
No.1 (12-pin) terminals (transaxle case side).
— TCC solenoid vale: B
— Pressure control solenoid: D
• Verify the click sounds of TCC solenoid valve
and pressure control solenoid.
• Are there click sounds?
Yes Go to next step.
No Replace TCC solenoid valve or pressure control solenoid,
then go to Step 10.
(See K2–105 CONTROL VALVE BODY REMOVAL/
INSTALLATION.)
7 INSPECT DIFFERENCE BETWEEN ENGINE
SPEED AND TURBINE SPEED
• Inspect difference between engine speed and
turbine speed during TCC operation in 5GR
• Drive vehicle under following condition
— TR switch position: D range
— Gear position: 5GR
— TCC solenoid valve: ON
• Is difference between engine speed (RPM PID)
and turbine speed okay?
Difference
Below 99 rpm
Yes Go to Step
No Go to next step.
8 INSPECT OPERATION OF EACH VALVE AND
EACH SPRING
• Remove control valve body.
• Disassemble control valve body.
• Is each valve operation okay and is return
spring okay?
Yes Replace torque converter, then go to next step.
No Replace control valve body, then go to next step.
(See K2–105 CONTROL VALVE BODY REMOVAL/
INSTALLATION.)
9 VERIFY TROUBLESHOOTING OF DTC P0740
COMPLETED
• Make sure to reconnect all disconnected
connectors.
• Clear DTC from memory using WDS or
equivalent.
• Start engine.
• Warm up ATX.
• Drive vehicle under following condition for 10
seconds or more.
— Vehicle speed (VSS PID): Within 10—87
km/h {6—54 mph}
— Gear position: 5GR
— TR switch position: D range
— TCC solenoid valve: ON
• Is there pending code present?
Yes Replace TCM, then go to next step.
(See K2–96 TCM REMOVAL/INSTALLATION.)
No Go to next step.
10 VERIFY AFTER REPAIR PROCEDURE
• Perform “After Repair Procedure”.
(See K2–124 AFTER REPAIR PROCEDURE.)
• Is there any DTC present?
Yes Go to applicable DTC inspection.
No Troubleshooting completed.
STEP INSPECTION ACTION
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