Inspection INSPECTION PROCEDURE 1. INSPECT TORQUE CONVERTER ASSEMBLY (a) Inspect the one-way clutch. Press on the splines of the stator with a finger and rotate it. Check that it rotates smoothly when turned clockwise and rotates with difficulty when turned counterclockwise. ![]()
If necessary, clean the torque converter assembly and recheck the one-way clutch. Replace the torque converter assembly if the one-way clutch still fails the inspection.
(c) Replace the ATF in the torque converter assembly. HINT: If the ATF is discolored or has a foul odor, stir the ATF in the torque converter assembly and drain it before replacing the ATF.
2. INSPECT DRIVE PLATE AND RING GEAR SUB-ASSEMBLY (a) Check the drive plate and ring gear sub-assembly for damage. ![]()
(b) Set up a dial indicator and measure the runout at the 6 areas on the drive plate and ring gear sub-assembly surface that contact the torque converter clutch assembly. Maximum Runout: 0.30 mm (0.0118 in.) HINT:
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Toyota Avalon Service & Repair Manual > Intelligent Clearance Sonar System(for Gasoline Model): ENG / EHV Device (C1A40)
DESCRIPTION When a EFI system malfunction signal sent by the ECM is detected by the clearance warning ECU assembly, DTC C1A40 is stored. DTC No. Detection Item DTC Detection Condition Trouble Area C1A40 ENG / EHV Device When the engine switch is on (IG), a EFI system malfunction signal is detected f ...