A/T Symptom Diagnosis - Suzuki GRAND VITARA Owner's Manual

5A-36 Automatic Transmission/Transaxle:

A/T Symptom Diagnosis

Trouble Diagnosis 1
Electrical repair
Condition
Excessive shift shock
No gear shift as 3rd gear Shift solenoid valve No.1 and/or No.2
→
Poor 1 2 shift
Possible cause
Shift solenoid valve No.1 and/or No.2
circuit faulty
Pressure control solenoid valve circuit
faulty
Output shaft speed sensor circuit faulty Inspect circuit for open, short and intermittent.
Input shaft speed sensor circuit faulty
Transmission fluid temperature sensor
circuit faulty
CAN communication circuit faulty
Accelarator pedal position sensor circuit
faulty
TCM
ECM
circuit faulty
Pressure control solenoid valve circuit
faulty
TCM
Shift solenoid valve No.2 circuit faulty
Output shaft speed sensor circuit faulty Inspect circuit for open, short and intermittent.
Transmission range sensor circuit faulty Inspect circuit for open, short and intermittent.
CAN communication circuit faulty
Accelerator pedal position sensor circuit
faulty
TCM
ECM
Correction / Reference Item
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 P0122: Throttle Position
Sensor (Main) Circuit Low: in Section 1A",
"DTC P0123: Throttle Position Sensor (Main)
Circuit High: in Section 1A", "DTC P0222:
Throttle Position Sensor (Sub) Circuit Low: in
Section 1A" and "DTC P0223: Throttle Position
Sensor (Sub) Circuit High: in Section 1A".
Substitute a known-good TCM and recheck.
Substitute a known-good ECM and recheck.
Inspect circuit for open, short and intermittent.
If NG, repair.it faulty
Inspect circuit for open, short and intermittent.
If NG, repair.it faulty
Substitute a known-good TCM and recheck.
Inspect circuit for open, short and intermittent.
If NG, repair.
If NG, repair.
If NG, repair.
Inspect circuit for open, short and intermittent.
If NG, repair.
Inspect circuit for open, short and intermittent
referring to "DTC P0122: Throttle Position
Sensor (Main) Circuit Low: in Section 1A",
"DTC P0123: Throttle Position Sensor (Main)
Circuit High: in Section 1A", "DTC P0222:
Throttle Position Sensor (Sub) Circuit Low: in
Section 1A" and "DTC P0223: Throttle Position
Sensor (Sub) Circuit High: in Section 1A".
Substitute a known-good TCM and recheck.
Substitute a known-good ECM and recheck.
S5JB0A5104019