Problem Symptoms Table

HINT:

Use the table below to help determine the cause of the problem symptom. The potential causes of the symptoms are listed in order of probability in the "Suspected area" column of the table. Check each symptom by checking the suspected areas in the order they are listed. Replace parts as necessary.
Inspect the fuses and relays related to this system before inspecting the suspected areas below.

CRUISE CONTROL SYSTEM

Symptom	Suspected Area	Refer to
SET not occurring or CANCEL occurring (DTC is normal)	1. Input signal circuit	Refer to DTC P0607: Control Module Performance
	2. Vehicle speed sensor circuit	Refer to DTC P0500: Vehicle Speed Sensor Malfunction
	3. Stop light switch circuit	Refer to DTC P0571: Brake Switch "A" Circuit
	4. Shift lever position sensor	Refer to INSPECTION
	5. Hybrid vehicle control ECU	-
SET not occurring or CANCEL occurring (DTC is not output)	1. Cruise control switch circuit	Refer to Cruise Control Switch Circuit
SET not occurring or CANCEL occurring (DTC is not output)	2. Hybrid vehicle control ECU	-
Actual vehicle speed deviates above or below the set speed	1. Vehicle speed sensor circuit	Refer to DTC P0500: Vehicle Speed Sensor Malfunction
Actual vehicle speed deviates above or below the set speed	2. Hybrid vehicle control ECU	-
Gear shifting occurs frequently between 3rd and O/D when driving on	1. Vehicle speed sensor circuit	Refer to DTC P0500: Vehicle Speed Sensor Malfunction
	2. Hybrid vehicle control ECU	-
Cruise control cannot be canceled even when brake pedal is depressed	1. Stop light switch circuit	Refer to DTC P0571: Brake Switch "A" Circuit
	2. Hybrid vehicle control ECU	-
Cruise control cannot be canceled even when transmission is shifted to N	1. Shift lever position sensor	Refer to INSPECTION
	2. Hybrid vehicle control ECU	-
Control switch does not operate (SET / COAST, RES / ACC, CANCEL not possible)	1. Cruise control switch circuit	Refer to Cruise Control Switch Circuit
	2. Hybrid vehicle control ECU	-
SET possible at 40 km/h (25 mph) or less, or CANCEL does not operate	1. Vehicle speed sensor circuit	Refer to DTC P0500: Vehicle Speed Sensor Malfunction
	2. Hybrid vehicle control ECU	-
Poor response in ACCEL and RESUME modes	1. Hybrid vehicle control ECU	-
O/D does not resume even though road is not uphill	1. Vehicle speed sensor circuit	Refer to DTC P0500: Vehicle Speed Sensor Malfunction
O/D does not resume even though road is not uphill	2. Hybrid vehicle control ECU	-
DTC memory is erased	1. Hybrid vehicle control ECU	-
DTC is not output, or is output when it should not be	1. TC and CG terminal circuit	Refer to TC and CG Terminal Circuit
DTC is not output, or is output when it should not be	2. Hybrid vehicle control ECU	-
CRUISE main indicator light remains illuminated or fails to light up	1. Cruise control switch circuit	Refer to Cruise Control Switch Circuit
	2. Combination meter	-
	3. Hybrid vehicle control ECU	-