Automatic Transmission Electronic Controlled (ECT) - A750E/A750F - Diagnostics: Wiring Toyota 4Runner IV

WIRING DIAGRAM

See WIRING DIAGRAM .

Scheme 325

Scheme 326

1. Inspect Transmission Wire (ATF Temperature Sensor) Disconnect the transmission wire connector from the transmission. Measure the resistance between terminals OT+ and OT-. OK : TERMINAL RESISTANCE Temperature: °C (°F) Resistance: kohm 10(50) 6.4 110(230) 0.2 Measure resistance between terminals OT+ and OT- of the transmission wire connector and body ground. OK : Resistance: 1 Mohm or higher NG : Repair Or Replace Transmission Wire (See TRANSMISSION WIRE ) OK : Go to Next Step
2. Check Harness And Connector (Transmission Wire - ECM) Connect the transmission wire connector. Disconnect the ECM connector. Measure the resistance between terminals THO1 and E2. OK : TERMINAL RESISTANCE Temperature: °C (°F) Resistance: kohm 10(50) 6.4 110(230) 0.2 Measure resistance between terminals THO1 of the ECM connector and body ground. OK : Resistance: 1 Mohm or higher NG : Repair Or Replace Harness Or Connector (See «ELECTRONIC CIRCUIT INSPECTION PROCEDURE»(ref-190050-S42441265552005091300000) ) OK : Check And Replace ECM (See «ELECTRONIC CIRCUIT INSPECTION PROCEDURE»(ref-190050-S42441265552005091300000) )

see SFI SYSTEM .

See WIRING DIAGRAM .