Suzuki 2006 SX4, Service Manual

Page: 621 / 1478

Automatic Transmission/Transaxle: 5A-33
A/T Symptom Diagnosis
S6RW0C5104017
Trouble Diagnosis 1
Electrical repair
Condition Possible cause Correction / Reference Item
No up-shift (fixed gear
position) Battery voltage abnormality Inspect charging system referring to
“Generator Test (Undercharged Battery
Check) in Section 1J” or “Generator Test
(Overcharged Battery Check) in Section 1J”.
Input shaft speed sensor circuit faulty Inspect circuit for open, short and intermittent.
If NG, repair.
Output shaft speed sensor circuit faulty Inspect circuit for open, short and intermittent.
If NG, repair.
Pressure control solenoid valve circuit
faulty Inspect circuit for open, short and intermittent.
If NG, repair.
Shift solenoid valve–A (No. 1) circuit
faulty Inspect circuit for open, short and intermittent.
If NG, repair.
Shift solenoid valve–B (No. 2) circuit
faulty Inspect circuit for open, short and intermittent.
If NG, repair.
CAN communication circuit faulty Inspect circuit for open, short and intermittent.
If NG, repair.
TCM Substitute a known-good TCM and recheck.
ECM Substitute a known-good ECM and recheck.
Poor 1
→
2 shift Transmission range sensor circuit faulty Inspect circuit for open, short and intermittent.
If NG, repair.
TCM Substitute a known-good TCM and recheck.
ECM Substitute a known-good ECM and recheck.
Poor 2
→
3 shift Transmission range sensor circuit faulty Inspect circuit for open, short and intermittent.
If NG, repair.
TCM Substitute a known-good TCM and recheck.
ECM Substitute a known-good ECM and recheck.
Poor 3
→
4 shift Transmission range sensor circuit faulty Inspect circuit for open, short and intermittent.
If NG, repair.
CAN communication circuit faulty Inspect circuit for open, short and intermittent.
If NG, repair.
Engine coolant temperature sensor
circuit faulty Inspect circuit for open, short and intermittent
referring to “Engine Coolant Temperature
(ECT) Sensor Inspection in Section 1C”. If NG,
repair.
“3” position switch circuit faulty Inspect circuit for open, short and intermittent.
If NG, repair.
TCM Substitute a known-good TCM and recheck.
ECM Substitute a known-good ECM and recheck.
Incorrect gear shift point Throttle position sensor circuit faulty Inspect circuit for open, short and intermittent
referring to “Electric Throttle Body Assembly
On-Vehicle Inspection in Section 1C”. If NG,
repair.
Throttle position sensor faulty Inspect referring to “Electric Throttle Body
Assembly On-Vehicle Inspection in Section
1C”. If NG, repair.
TCM Substitute a known-good TCM and recheck.
ECM Substitute a known-good ECM and recheck.