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7A-32 AUTOMATIC TRANSMISSION (AW30-40LE) CODE 24 VEHICLE SPEED SENSOR 1 (OPEN/SHORTED CIRCUIT) Step Action Value(s) Yes No 1 1. Lift the driving wheels. 0 km/h Go to Step 2 Code 24 is intermittent. If other codes are not stored, refer to “Diagnostic Aids”. 2 Does the speedometer operate? − Go to Step 3 Go to Step 4 3 1. Open the throttle and increase the revolution speed of the driving wheels. 2. Measure the voltage between the TCM 26 pin connector terminal (6) and ground Does the voltage vary intermittently in the Less than 1.4− About 5 V (Vehicle speed 10 −20 km/h) Go to Step 5 Go to Step 6 4 The vehicle speed sensor 1 or the speed meter − Go to Step 7 − 5 The TCM connection is faulty or the TCM is − Go to Step 7 − 6 The wiring harness between the speed meter − Go to Step 7 − 7 1. After the repair is complete, use the scan tool to select “DTC”, then “Clear Info” 2. Make a road running test for the vehicle. − Begin the again Go to Step 1 System OK
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