
DI-572
DIAGNOSTICS - CRUISE CONTROL SYSTEM
DI08L-12
PROBLEM SYMPTOMS TABLE
Symptom Suspect Area See page
3. Vehicle Speed Sensor DI-580
4. Control Switch Circuit (Cruise control switch) DI-583
5. Stop Light Switch Circuit DI-589
SET not occurring or CANCEL occurring.
6. Park/Neutral Position Switch Circuit DI-595
(DTC is Normal)
7. Actuator Motor Circuit DI-573
8. Cruise Control Cable DI-605
9. Cruise Control ECU IN-31
SET not occurring or CANCEL occurring. 1. ECU Power Source Circuit DI-598
(DTC dose not output) 2. Cruise Control ECU IN-31
1. Cruise Control Cable DI-605
2. Vehicle Speed Signal Abnormal DI-580
3. Electronically Controlled Transmission Communication DI-592
Actual vehicle speed deviates above or below the set speed. Circuit
4. Actuator Motor Circuit DI-573
5. Idle Signal Circuit (Main throttle position sensor) DI-586
6. Cruise Control ECU IN-31
1. Electronically Controlled Transmission Communication DI-592
Gear shifting frequent between 3rd O/D when driving on uphill
Circuit
road. (Hurting)
2. Cruise Control ECU IN-31
1. Cruise Control Cable DI-605
Cruise control not cancelled, even when brake pedal is de- 2. Stop Light Switch Circuit DI-589
pressed. 3. Actuator Motor Circuit DI-573
4. Cruise Control ECU IN-31
1. Cruise Control Cable DI-605
Cruise control not cancelled, even when transmission is shifted to 2. Park/Neutral Position Switch Circuit DI-595
"N" position. 3. Actuator Motor Circuit DI-573
4. Cruise Control ECU IN-31
1. Cruise Control Cable DI-605
Cruise control not cancelled, even when clutch pedal is de-
2. Actuator Motor Circuit DI-573
pressed.
3. Cruise Control ECU IN-31
1. Cruise Control Cable DI-605
Control switch does not operate. 2. Control Switch Circuit -
(SET/COAST, ACC/RES, CANCEL not possible) 3. Actuator Motor Circuit DI-573
4. Cruise Control ECU IN-31
1. Cruise Control Cable DI-605
SET possible at 40 km/h (25 mph) or less, or CANCEL does not 2. Vehicle Speed Signal Abnormal DI-580
operate at 40 km/h (25 mph) or less. 3. Actuator Motor Circuit DI-573
4. Cruise Control ECU IN-31
1. Cruise Control Cable DI-605
2. Electronically Controlled Transmission Communication DI-592
Poor response in ACCEL and RESUME modes. Circuit
3. Actuator Motor Circuit DI-573
4. Cruise Control ECU IN-31
1. Electronically Controlled Transmission Communication DI-592
O/D does not RESUME, even though the road is not uphill. Circuit
2. Cruise Control ECU IN-31
DTC memory is erased. 1. Cruise Control ECU IN-31
1. Diagnosis Circuit DI-603
DTC is not output, or is output when should not be.
2. Cruise Control ECU IN-31
Cruise MAIN indicator light remains ON or falls to light up. 1. Cruise MAIN Indicator Light Switch Circuit DI-601
2001 SIENNA (RM787U)
Author : Date : 726