(a) For an open circuit in the wire harness in Fig. 1, the resistance or voltage, as described below.

(b) Check the resistance.

Check the resistance
Standard resistance (Fig. 2)

HINT:
Measure the resistance while lightly shaking the wire harness vertically and horizontally. If the results match the examples above, an open circuit exists between terminal 1 of connector A and terminal 1 of connector C.
(2) Disconnect connector B and measure the resistance between the terminals of the connectors.

Standard resistance (Fig. 3)

If the results match the examples above, an open circuit exists between terminal 1 of connector B2 and terminal 1 of connector C.
(c) Check the voltage.
Check the voltage
(1) In a circuit in which voltage is applied to the ECU connector terminal, an open circuit can be checked by conducting a voltage check.
With each connector still connected, measure the voltage between the body ground and these terminals (in this order): 1) terminal 1 of connector A, 2) terminal 1 of connector B, and 3) terminal 1 of connector C.
Standard voltage (Fig. 4)

If the results match the examples above, an open circuit exists in the wire harness between terminal 1 of connector B and terminal 1 of connector C.
Basic inspection
Check for short circuitSystem description
1. GENERAL
The dynamic laser cruise control system has two
cruise control modes: the constant speed control
mode and vehicle-to-vehicle distance control mode.
The vehicle-to-vehicle distance control mode is
always selected when starting the dynamic laser
cruise control ...
Room temperature sensor
On-vehicle inspection
1. INSPECT A/C ROOM TEMPERATURE SENSOR
(a) Remove the A/C room temperature sensor.
(b) Measure the resistance according to the value(s) in
the table below.
Standard resistance
NOTICE:
Even slightly touching the sensor may
change the resistance value. Be sure ...
Removal
1. DISCHARGE FUEL SYSTEM PRESSURE
HINT:
See page FU-1.
2. DISCONNECT CABLE FROM NEGATIVE BATTERY
TERMINAL
3. REMOVE NO. 1 ENGINE UNDER COVER
4. DRAIN ENGINE COOLANT (See page CO-6)
5. REMOVE FRONT WIPER ARM HEAD CAP (See page
WW-4)
6. REMOVE FRONT WIPER ARM RH (See page WW-4)
7. REMOVE FRO ...