Toyota Celica 2005 Repair Manual page 1249

DI−1048
PROBLEM SYMPTOMS TABLE
SET not occurring or CANCEL occurring (DTC is normal).
SET not occurring or CANCEL occurring (DTC does not output).
Actual vehicle speed deviates above or below the set speed.
Gear shifting frequently between 3rd and O/D when driving on
uphill road (Hurting).
Cruise control cannot be cancelled even when brake pedal is
depressed.
Cruise control cannot be cancelled even when transmission is
shifted to "N" position.
Cruise control cannot be cancelled even when clutch pedal is
depressed.
Control switch does not operate (SET/COAST, ACC/RES, CAN-
CEL not possible).
SET is possible at 40 km/h (25 mph) or less, or CANCEL does not
operate at 40 km/h (25 mph) or less.
Poor response is in ACCEL and RESUME modes.
O/D does not resume even though the road is not uphill.
DTC memory is erased.
2005 CELICA (RM1131U)
DIAGNOSTICS
Symptom
− CRUISE CONTROL SYSTEM (1ZZ−FE)
Suspect Area
1. Main Switch Circuit (Cruise control switch)
2. Vehicle Speed Sensor
3. Control Switch Circuit (Cruise control switch)
4. Stop Light Switch Circuit
5. Park/Neutral Position Switch Circuit (A/T)
6. Clutch Switch Circuit (M/T)
7. Actuator Motor Circuit
8. Cruise Control Cable
9. Cruise Control ECU
1. ECU Power Source Circuit
2. Cruise Control ECU
1. Cruise Control Cable
2. Vehicle Speed Signal Abnormal
3. Electronically Controlled Transmission Communication
Circuit
4. Actuator Motor Circuit
5. Idle Signal Circuit (Main throttle position sensor)
6. Cruise Control ECU
1. Electronically Controlled Transmission Communication
Circuit
2. Cruise Control ECU
1. Cruise Control Cable
2. Stop Light Switch Circuit
3. Actuator Motor Circuit
4. Cruise Control ECU
1. Cruise Control Cable
2. Park/Neutral Position Switch Circuit (A/T)
3. Actuator Motor Circuit
4. Cruise Control ECU
1. Cruise Control Cable
2. Clutch Switch Circuit (M/T)
3. Actuator Motor Circuit
4. Cruise Control ECU
1. Cruise Control Cable
2. Control Switch Circuit
3. Actuator Motor Circuit
4. Cruise Control ECU
1. Cruise Control Cable
2. Vehicle Speed Signal Abnormal
3. Actuator Motor Circuit
4. Cruise Control ECU
1. Cruise Control Cable
2. Electronically Controlled Transmission Communication
Circuit
3. Actuator Motor Circuit
4. Cruise Control ECU
1. Electronically Controlled Transmission Communication
Circuit
2. Cruise Control ECU
1. Cruise Control ECU
1248
DI08L−31
See page
DI−1063
DI−1058
DI−1063
DI−1068
DI−1075
DI−1078
DI−1078
DI−1050
DI−1078
DI−1080
DI−1078
DI−1050
DI−1058
DI−1072
DI−1078
DI−1066
DI−1078
DI−1072
DI−1078
DI−1050
DI−1068
DI−1078
DI−1078
DI−1050
DI−1075
DI−1078
DI−1078
DI−1050
DI−1078
DI−1078
DI−1078
DI−1050
DI−1078
DI−1078
DI−1078
DI−1050
DI−1058
DI−1078
DI−1078
DI−1050
DI−1072
DI−1078
DI−1078
DI−1072
DI−1078
DI−1078