Toyota Celica 2005 Repair Manual page 1256

3 Check resistance between terminals L and GND of actuator magnetic clutch.
4
3
OK
4 Check for open and short in harness and connectors between cruise control
ECU and actuator magnetic clutch, actuator magnetic clutch and body ground
(See page IN−30).
OK
Check and replace cruise control ECU (See
page IN−30).
2005 CELICA (RM1131U)
DIAGNOSTICS − CRUISE CONTROL SYSTEM (1ZZ−FE)
PREPARATION:
(a) Turn ignition switch OFF.
(b) Disconnect the actuator connector.
CHECK:
Measure the resistance between terminal 3 and 4.
OK:
Resistance: 34.65 − 42.35 Ω.
I00311
NG Replace cruise control actuator.
NG Repair or replace harness or connector.
1255
DI−1055