A/T Symptom Diagnosis - Suzuki 2006 SX4 Service Manual

A/T Symptom Diagnosis

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