Toyota Celica 2005 Repair Manual page 291

DI−92
4 Check for short in harness and ECM.
ON
Engine Coolant
Temp. Sensor
NG
2005 CELICA (RM1131U)
DIAGNOSTICS
PREPARATION:
(a)
(b)
ECM
(c)
5V
14
THW
E4
18
E2
CHECK:
E4
E1
Read temperature value on the OBD II scan tool or
hand−held tester.
A00397
OK:
OK
− ENGINE (1ZZ−FE)
Disconnect the engine coolant temp. sensor connector.
Turn the ignition switch ON.
When using hand−held tester, enter the following menus:
DIAGNOSIS / ENHANCED OBD II / DATA LIST / ALL /
COOLANT TEMP.
Temperature value: − 40°C (− 40°F)
Replace engine coolant temperature sensor.
290