Toyota Hilux Surf 1993 Owner's Manual page 250

General Troubleshooting (Cont'd)
Problem
No lock–up in 2nd,
3rd or 01D
Harsh down–shift
No down–shift when
coasting
Down–shift occurs Throttle cable faulty
too quickly or too Valve body faulty
late while coasting Transmission faulty
Solenoid valve faulty
Electronic control faulty
No O/D–3, 3–2 or 2–1 Solenoid valve faulty
Electronic control faulty
kick–down
Valve body faulty
No engine braking 2 Solenoid valve faulty
Electronic control faulty
or L position
Valve body faulty
Transmission faulty
Manual linkage out of adjustment
Vehicle does not
hold in P Parking lock pawl cam and spring faulty
AUTOMATIC TRANSMISSION
Possible cause
Electronic control faulty
Valve body faulty
Solenoid valve faulty
Transmission faulty
Throttle cable out of adjustment
Throttle cable and cam faulty
Accumulator pistons faulty
Valve body faulty
Transmission faulty
Valve body faulty
Solenoid valve faulty
Electronic control faulty
– Troubleshooting (General Troubleshooting)
Remedy
Inspect electronic control
Inspect valve body
Inspect solenoid valve
Disassemble and inspect
transmission
Adjust throttle cable
Inspect throttle cable and cam
Inspect accumulator pistons
Inspect valve body
Disassemble and inspect
transmission
Inspect valve body
Inspect solenoid valve
Inspect electronic control
Inspect throttle cable
Inspect valve body
Disassemble and inspect
transmission
Inspect solenoid valve
Inspect electronic control
Inspect solenoid valve
Inspect electronic control
Inspect valve body
Inspect solenoid valve
Inspect electronic control
Inspect valve body
Disassemble and inspect
transmission
Adjust linkage
Inspect cam and spring
Remark *: Refer to A340E Automatic
Transmission Repair Manual.
(Pub. No. RM271U)
AT–53
Page
AT–63
AT–72
AT–60
AT–60
*
AT–72
AT–63
AT–60
AT–72
AT–63
AT–72
AT–63
AT–72
AT–63
AT–60
AT–87