Toyota Sienna Service Manual: Charge Warning Light Comes ON while Driving
1 CHECK LOCK FUNCTION OF CLUTCH PULLEY
(a) Check the lock function with the pulley installed in the vehicle.
(1) Visually check that the rotor in the generator operates with the engine started.
(b) Check the lock function with the pulley removed from the vehicle.
(1) Remove the generator pulley cap. Using SST, hold the generator rotor.
(2) Turn the clutch pulley clockwise and check that the outer ring locks.
OK: The outer ring locks.
2 CHECK LOCK OF CLUTCH PULLEY
(a) Start the engine and visually check for looseness of the clutch pulley.
OK: The clutch pulley is not loose.
REPLACE GENERATOR ASSEMBLY
On-vehicle inspection1. Check battery electrolyte level (a) Check the electrolyte level. (1) If the electrolyte level is low, replace the battery (or add distilled water) and check the charging system. 2. CHECK BAT ...
1. INSPECT CAMSHAFT TIMING OIL CONTROL VALVE ASSEMBLY Resistance inspection Using an ohmmeter, measure the resistance between the terminals. Resistance: 6.9 to 7.9 Ω at 20C (68F) If necessary, replace the camshaft timing oil control valve assembly. &nbs ...
HINT: The most difficult case in troubleshooting is when no problem symptoms occur. In such a case, a thorough problem analysis must be carried out. A simulation of the same or similar conditions and environment in which the problem occurred in the customer's vehicle should be carried out.