Suzuki SX4 Service Manual page 737

Condition
→
Poor 3 4 shift
→
Poor 4 3 shift
Possible cause
Shift solenoid valve-B circuit faulty
Pressure control solenoid valve circuit
faulty
Timing 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
CAN communication circuit faulty
Throttle position sensor circuit faulty
Engine coolant temperature sensor
circuit faulty
Crankshaft position sensor circuit faulty Inspect circuit for open, short and intermittent
"3" position switch circuit faulty
TCM
ECM
Shift solenoid valve-B circuit faulty
Pressure control solenoid valve circuit
faulty
Timing solenoid valve circuit faulty
Output shaft speed sensor (VSS) circuit
faulty
Input shaft speed sensor circuit faulty
CAN communication circuit faulty
Throttle position sensor circuit faulty
"3" position switch circuit faulty
TCM
ECM
Automatic Transmission/Transaxle:
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
referring to "DTC P0122: Throttle Position
Sensor (Main) Circuit Low in Section 1A" and/
or "DTC P0123: Throttle Position Sensor
(Main) Circuit High in Section 1A". If NG, repair.
Inspect circuit for open, short and intermittent
referring to "DTC P0117: Engine Coolant
Temperature Circuit Low in Section 1A" and/or
"DTC P0118: Engine Coolant Temperature
Circuit High in Section 1A". If NG, repair.
referring to "DTC P0335: Crankshaft Position
(CKP) Sensor Circuit in Section 1A". If NG,
repair.
Inspect. If NG, repair.
Substitute a known-good TCM and recheck.
Substitute a known-good ECM and recheck.
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.
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" and/
or "DTC P0123: Throttle Position Sensor
(Main) Circuit High in Section 1A". If NG, repair.
Inspect. If NG, repair.
Substitute a known-good TCM and recheck.
Substitute a known-good ECM and recheck.
5A-37