Toyota Hilux Surf 1993 Owner's Manual page 263

AT–66
Continued from page
Connect solenoid wire connector and road test.
Does data link connector 1 TT terminal voltage
rise from 0 V to 7 V in sequence?
Are there 12 V between ECM terminals L–E,
when in the D position?
Yes
AUTOMATIC TRANSMISSION
AT–65
0³ 3V
• Park/Neutral position switch circuit faulty
• Park/Neutral position switch faulty
Try another ECM
– Troubleshooting (Electronic Control System)
0³ 7V
• Transmission faulty
• Solenoid faulty
0³ 5V
Proceed to trouble 3 (AT–68)
Are there 12 V between ECM
terminals 2–E, when in the D
position?
Yes