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Problem Symptoms Table

PROBLEM SYMPTOMS TABLE - CRUISE CONTROL SYSTEM

Symptom Suspected Area
SET not occurring or CANCEL occurring (DTC is Normal)
  • 3. Input signal circuit
  • 4. Vehicle speed sensor circuit
  • 5. Stop light switch circuit
  • 6. Park/neutral position switch circuit
  • 7. ECM
SET not occurring or CANCEL occurring (DTC is not output)
  1. ECM
Actual vehicle speed deviates above or below the set speed
  1. Input signal circuit
  2. ECM
Cruise control not cancelled, even when brake pedal is depressed
  1. Stop light switch circuit
  2. ECM
Cruise control not cancelled, even when transmission is shifted to any position excepts
  1. Transmission control ECU
  2. ECM
Control switch does not operate (SET/COAST ACC/RES, CANCEL not possible)
  1. Cruise control switch circuit
  2. ECM
SET possible at 40 km/h (25 mph) or less, or CANCEL does not operate at 40 km/h (25 mph) or less
  1. Input signal circuit
  2. ECM
Poor response in ACC and RES modes
  1. ECM
DTC memory is erased
  1. ECM
DTC is not output, or is output when should not be
  1. Diagnosis circuit
  2. ECM
CRUISE indicator remains ON or does not turn on
  1. Input signal circuit
  2. ECM
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