Toyota Celica 2005 Repair Manual page 1285

DI−1084
INSPECTION PROCEDURE
1 Check voltage between terminals PI and GND of cruise control ECU connector.
ON
(−) (+)
AB0119
I00144
NG
2 Check combination meter (See page BE−46).
OK
Check and replace cruise control ECU (See
page IN−30).
2005 CELICA (RM1131U)
DIAGNOSTICS
PREPARATION:
Turn the ignition switch ON.
CHECK:
Measure the voltage between terminal PI and GND of the cruise
PI
control ECU connector when main switch is ON and OFF.
OK:
I00178
− CRUISE CONTROL SYSTEM (1ZZ−FE)
Switch position
OFF
ON
OK Proceed to next circuit inspection shown in
problem symptom table (See page DI−1048).
NG Replace combination meter.
1284
Voltage
10 − 16 V
Below 1.2 V