Trouble Diagnosis Table-2 - Suzuki Wagon R RB310 Supplementary Service Manual

7B-18 AUTOMATIC TRANSMISSION (4 A/T)

Trouble diagnosis table-2

Mechanical Repair
Condition
Vehicle does not move
at any range
1st ↔ 2nd
2nd ↔ 3rd
3rd ↔ 4th
P, N → R
N → D
1st → 2nd at D
range or 2 range
2nd → 3rd at D
range
3rd → 4th at D
range
All gear change
Excessive slip
(low line pressure)
1st, 2nd, 3rd and
reverse gear
Reverse gear
2nd, 3rd and 4th
gear
3rd and 4th gear • Direct clutch faulty
1st and 2nd gear • 1st & 2nd brake faulty
4th gear
Any forward and
reverse gear
Shock or engine stalls
when starting off and
stopping
1st → 2nd
2nd → 3rd
3rd → 4th
2nd or 3rd gear
L range 1st gear • Direct clutch or 1st & 2nd brake faulty
No lock-up
Possible Cause
• Manual valve faulty
• Primary regulator valve faulty
• Shift solenoid -D (No.4) and/or -E (No.5) stuck Clean or replace.
• Shift solenoid -A (No.1), -C (No.3) and/or fail
valve No.1 stuck
• Shift solenoid -B (No.2), -C (No.3) and/or fail
valve No.2 stuck
• Front clutch accumulator faulty
• 1st & 2nd brake accumulator faulty
• Front clutch accumulator faulty
• Shift solenoid -D (No.4)
• Direct clutch accumulator faulty
• Shift solenoid -E (No.5)
• Overdrive brake accumulator faulty
• Shift solenoid -B (No.2)
• Primary regulator valve faulty
• Primary regulator valve faulty
• Rear clutch faulty
• Reverse brake faulty
• Front clutch faulty
• Overdrive brake faulty
• Parking lock pawl faulty
• TCC (lock-up clutch) faulty
• TCC (lock-up) solenoid faulty
• Lock-up control valve faulty
• Lock-up signal valve faulty
• Front clutch faulty
• Direct clutch faulty
• Overdrive brake faulty
• Front, rear or direct clutch or 1st & 2nd brake
faulty
• Torque converter clutch faulty
• Lock-up control valve faulty
• TCC (lock-up) solenoid faulty
• Secondary regulator valve faulty
• Signal valve faulty
Correction
Clean or replace.
Clean or replace.
Clean or replace.
Clean or replace.
Clean or replace.
Clean or replace.
Clean or replace.
Clean or replace.
Clean or replace.
Clean or replace.
Clean or replace.
Clean or replace.
Clean or replace.
Clean or replace.
Repair or replace.
Repair or replace.
Repair or replace.
Repair or replace.
Repair or replace.
Repair or replace.
Repair or replace.
Inspect and replace as necessary.
Clean or replace.
Clean or replace.
Clean or replace.
Repair or replace.
Repair or replace.
Repair or replace.
Repair or replace
Repair or replace.
Inspect and replace as necessary.
Clean or replace.
Clean or replace.
Clean or replace.
Clean or replace.