Trouble Shooting
If no problems are found when retrieving DTCs, diagnose problem based upon existing symptom for related systems as follows:
- For symptoms related to engine performance, see TROUBLE SHOOTING - NO CODES article in ENGINE PERFORMANCE.
- For symptoms related to body control system, driver door control system and passenger door control system see BODY CONTROL SYSTEMS - HIGHLANDER article. Several peripheral systems are also covered in this article. For a complete list of body control symptoms, see SYMPTOM INDEX table in BODY CONTROL SYSTEMS - HIGHLANDER article.
- For symptoms related to cruise control system, see CRUISE CONTROL SYSTEMS - HIGHLANDER article.
- For symptoms related to power windows, see TROUBLE SHOOTING in POWER WINDOWS - TRUCKS article.
- For symptoms related to manual A/C-heater system (if equipped), see MANUAL A/C-HEATER SYSTEMS - HIGHLANDER article.
- For symptoms related to automatic A/C-heater system (if equipped), see TROUBLE SHOOTING in AUTOMATIC A/C-HEATER SYSTEMS - HIGHLANDER article.
- For symptoms related to power sliding roof (if equipped), see TROUBLE SHOOTING in POWER SUN ROOFS article.
- For symptoms related to theft warning system (if equipped), see ANTI-THEFT SYSTEMS - HIGHLANDER article.