Toyota Hilux Surf 1993 Owner's Manual page 310

Diagnostic trouble code 62 (No. 1 solenoid valve circuitry)
Check resistance of No. 1 solenoid valve at ECM
connector.
(See page AT–130)
Substitute another ECM.
Remove the transmission oil pan and check
resistance of No. 1 solenoid valve connector
and body ground.
Resistance: 11–15W
Check wiring between No. 1 solenoid valve and
ECM.
Diagnostic trouble code 63 (No.2 solenoid valve circuitry)
Check resistance of No.2 solenoid valve at ECM
connector.
(See page AT–130)
Substitute another ECM.
Remove the transmission oil pan and check
resistance of No.2 solenoid valve connector
and body ground.
Resistance: 11–15 0
Check wiring between No.2 solenoid valve and
ECM.
Diagnostic trouble code 64 (Lock–up solenoid valve circuitry)
Check resistance of lock–up solenoid valve at
ECM connector.
(See page AT–130)
Substitute another ECM.
Remove the transmission oil pan and check
resistance of lock–up solenoid valve connector
and body ground.
Resistance: 11–15 9
Check wiring between lock–up solenoid valve
and ECM.
AUTOMATIC TRANSMISSION – Troubleshooting (Diagnosis System)
Replace No. 1 solenoid valve.
Replace No. 2 solenoid valve.
Replace lock–up solenoid valve.
AT–113