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TM-56 < DTC/CIRCUIT DIAGNOSIS > P0720 OUTPUT SPEED SENSOR WITH GST Follow the procedure “With CONSULT-III”. Diagnosis Procedure INFOID:0000000006159282 1. CHECK INPUT SIGNAL With CONSULT-III 1. Turn ignition switch “ON”. 2. Select “ECU INPUT SIGNALS” in “DATA MONITOR” mode for “TRANSMISSION” with CONSULT-III. 3. Start the engine. 4. Read out the value of “VHCL/S SE-A/T” while driving. Check the value changes according to driving speed. OK or NG OK >> GO TO 6. NG >> GO TO 2. 2. CHECK TCM POWER SUPPLY AND GROUND CIRCUIT Check TCM power supply and ground circuit. Refer to OK or NG OK >> GO TO 3. NG >> Repair or replace damaged parts. 3. DETECT MALFUNCTIONING ITEM Check the following items: • The A/T assembly harness connector pin terminals for damage or loose connection with harness connector. OK >> GO TO 4. NG >> Repair or replace damaged parts. 4. CHECK SUB-HARNESS 1. Remove control valve with TCM. Refer to TM-197, "Control Valve with TCM" . 2. Disconnect transmission range switch connector and TCM connector. 3. Check continuity between transmission range switch connector (A) terminals and TCM connector (B) terminals. 4. If OK, check harness for short to ground and short to power. 5. Reinstall any part removed. OK >> GO TO 5. NG >> Replace open circuit or short to ground and short to power in harness or connectors. 5. REPLACE THE OUTPUT SPEED SENSOR AND CHECK DTC Item name Condition Display value (km/h) VHCL/S SE-A/T During driving Approximately matches the speedometer reading. Item Connector Terminal Continuity Transmission range switch connector F505 8 Yes TCM connector F503 20 Transmission range switch connector F505 9 Yes TCM connector F503 17 Transmission range switch connector F505 10 Yes TCM connector F503 16 JSDIA1329GB |