| Components |

| 1. Water temperature control (WTC) outlet fitting 2. Water temperature control (WTC) housing 3. Water temperature control (WTC) gasket 4. Water temperature control (WTC) outlet fitting gasket | 5. Water temperature sensor 6. Return & degassing pipe & hose 7. Heater pipe 8. Separate cooling thermostat |
Removal and installation1.Loosen the drain plug, and drain the engine coolant. Remove the reservoir cap to help drain the coolant faster.(Refer to Cooling System - "Coolant")2.
Removal and installationWater Temperature Control Assembly1.Disconnect the battery negative terminal.2.Loosen the drain plug, and drain the engine coolant.
Replacement1.Remove the battery (-) terminal.2.Remove the engine room under cover.(Refer to Engine Mechanical System - "Engine Room Under Cover")3.Remove the heater hose (A) and AEWP hose (B).4.Disconnect the lock pin to remove the heater hose pump connector (A).
Trouble Symptom ChartsTrouble Symptom 1Trouble Symptom 2 Trouble symptom Probable cause Remedy The set vehicle speed varies greatly upward or downward"Surging" (repeated alternating acceleration and deceleration) occurs after settingMalfunction of the vehicle speed se