Toyota Camry Manual page 516

INSPECTION PROCEDURE
Check voltage between terminals VR2 and VR3 of cruise control ECU
connector.
Check actuator position sensor.
Check harness and connector between cruise control ECU and actuator
position sensor. (See page IN–31)
Check harness and connector for loose
connection. If connection is normal check and
replace cruise control ECU.
BODY ELECTRICAL SYSTEM
1 Remove cruise control actuator.
2. Disconnect the actuator connector.
Measure resistance between actuator terminals 1
and 3 of actuator connector.
Resistance: 1.8–2.2 kΩ
Measure resistance between terminals 2 and 3 of
actuator connector, while turning the control
plate slowly by hand from the deceleration side to
the acceleration side.
Resistance:
Fully closed: 500–550Ω
Fully opened: 1.5–2.0 kΩ
In addition, as the control plate turns, the
resistance should increase gradually without
interruption.
– CRUISE CONTROL SYSTEM
Remove cruise control ECU with connectors still
connected.
1 Turn ignition switch on.
2. Measure voltage between terminals VR2 and
VR3 of cruise control ECU connector while
turning control plate slowly by hand from the
deceleration side to the acceleration side.
Voltage:
Fully closed: 1.1–1.4 V
Fully opened: 3.8–4.5 V
In addition, as the control plate is turned, the
voltage should increase gradually without
interruption.
Proceed to next circuit inspection shown on
matrix chart (See page BE–178).
Replace actuator assembly.
Repair or replace harness or connector.
BE–197