A/T Symptom Diagnosis - Suzuki 2006 SX4 Service Manual

5A-34 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-A and/or -B circuit
→
Poor 1 2 shift
Possible cause
Shift solenoid valve-A and/or -B circuit
faulty
Pressure control solenoid valve circuit
faulty
Timing solenoid valve circuit faulty only
when N → D or 3 ↔ 4 shifting
Output shaft speed sensor (VSS) circuit
faulty
Input shaft speed sensor circuit faulty
Transmission fluid temperature sensor
circuit faulty
CAN communication circuit faulty
Throttle position sensor circuit faulty
Crankshaft position sensor circuit faulty Inspect circuit for open, short and intermittent
TCM
ECM
faulty
Pressure control solenoid valve circuit
faulty
Timing solenoid valve circuit faulty
TCM
Shift solenoid valve-B circuit faulty
Output shaft speed sensor (VSS) circuit
faulty
Transmission range sensor circuit faulty Inspect circuit for open, short and intermittent.
CAN communication circuit faulty
Throttle 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.
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.
referring to "DTC P0335: Crankshaft Position
(CKP) Sensor Circuit in Section 1A". 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.
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.
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.
Substitute a known-good TCM and recheck.
Substitute a known-good ECM and recheck.
S6RW0D5104017