Suzuki Liana RH413 Service Manual page 588

5A-40 Automatic Transmission/Transaxle:
Condition
Non operate TCC (lock-
up) system
Higher or lower stall
speed
→
Excessive "N" "D" or
→
"N" "R" timelag
Higher or lower line
pressure
Excessive slippage in all
range
Trouble Diagnosis 2
On-vehicle repair
Condition
Unable to run in all range Faulty valve body component
Possible cause
TCC solenoid valve circuit faulty
Shift solenoid valve-A and/or -B circuit
faulty
Pressure control solenoid valve circuit
faulty
Output shaft speed sensor / VSS circuit
faulty
Input shaft speed sensor circuit faulty
Transmission range sensor circuit faulty Inspect circuit for open, short and intermittent.
Transmission fluid temperature sensor
circuit faulty
Engine coolant temperature signal
circuit faulty
Throttle position signal circuit faulty
Throttle position sensor circuit faulty
Engine coolant temperature sensor
circuit faulty
Brake light switch circuit faulty
TCM
ECM
Pressure control solenoid valve circuit
faulty
TCM
Pressure control solenoid valve circuit
faulty
Transmission fluid temperature sensor
circuit faulty
TCM
Pressure control solenoid valve circuit
faulty
TCM
Pressure control solenoid valve circuit
faulty
TCM
Possible cause
Correction / Reference Item
Inspect circuit for open, short and intermittent.
If NG, repair.
Inspect circuit for open, short and intermittent.
If NG, repair.
Inspect circuit for open, short and intermittent.
If NG, repair.
Inspect circuit for open, short and intermittent.
If NG, repair.
Inspect circuit for open, short and intermittent.
If NG, repair.
If NG, repair.
Inspect circuit for open, short and intermittent.
If NG, repair.
Inspect circuit for open, short and intermittent.
If NG, repair.
Inspect circuit for open, short and intermittent.
If NG, repair.
Inspect circuit for open, short and intermittent
referring to "DTC P0120 (No. 13): Throttle
Position Circuit Malfunction in Section 1A".If
NG, repair.
Inspect circuit for open, short and intermittent
referring to "DTC P0115 (No. 19): Engine
Coolant Temp. (ECT) Circuit Malfunction in
Section 1A". If NG, repair.
Refer to "No Lock-Up Occurs".
Substitute a known-good TCM and recheck.
Substitute a known-good ECM and recheck.
Inspect circuit for open, short and intermittent.
If NG, repair.
Substitute a known-good TCM and recheck.
Inspect circuit for open, short and intermittent.
If NG, repair.
Inspect circuit for open, short and intermittent.
If NG, repair.
Substitute a known-good TCM and recheck.
Inspect circuit for open, short and intermittent.
If NG, repair.
Substitute a known-good TCM and recheck.
Inspect circuit for open, short and intermittent.
If NG, repair.
Substitute a known-good TCM and recheck.
Correction / Reference Item
Replace valve body assembly.