YES - Check for poor connection between PCM and component: backed out terminal, improper mating, broken locks or poor terminal to wire connection. Measure resistance between terminal 39 of the PCM harness connector and chassis ground. NO - Repair as necessary and go to "Verification of Vehicle Repair" procedure. Measure resistance between terminals 39 of the PCM harness connector and 3 of the ABS Control Module harness connector(W/ABS) Replace wheel speed sensor as necessary and go to "Verification of Vehicle Repair" procedure.ĭisconnect PCM and ABS Control Module connectors Trigger wheel condition - Sensor resistance : Approx. Gap between ABS sensor and trigger wheel (Air gap : 0.3 - 1.1 mm (0.011 - 0.043 in )) If OK, Check wheel speed sensor(FR) as follow : If problems are found, repair as necessary and go to "Verification of Vehicle Repair" procedure Go to "Signal Circuit Inspection" procedure.Ĭheck for open or short circuit between wheel speed sensor(FR) and ABS(or ESP) control module. Specification : 10 km/h or more(6 mph or more) Monitor the "WHEEL SPD SENSOR-FR" parameter on the current data list. 10 km/h or more(6 mph or more) on the instrument cluster. Let vehicle idle and verify speedometer indicates approx. With vehicle raised on a lift, start the engine and place transaxle in Drive. Go to "Signal Circuit Inspection" procedure. Go to "Monitor Scan tool Data" procedure. Repair or replace as necessary and go to "Verification of Vehicle Repair" procedure. Thoroughly check connectors for looseness, poor connection, bending, corrosion, contamination, deterioration, or damage. YES - Fault is intermittent, caused by poor contact in the sensor's and/or PCM's connector or was repaired and PCM memory was not cleared. Present fault : DTC is occurring at present time. History (Not Present) fault : DTC occurred but has been cleared. Is parameter displayed "History(Not Present) fault"? If not, drive the vehicle within conditions noted in the freeze frame data or enable conditions. Press F5(INFO) to select DTC information from the DTCs menu.Ĭonfirm that "DTC Readiness Flag" indicates "Complete". The PCM sets DTC P0501 if there is no vehicle speed signal from wheel speed sensor while both engine speed and mass air flow are higher than predetermined threshold during the predetermined time.Ĭonnect Connect scan tool and select "Diagnostic Trouble Codes(DTCs)" mode. This evaluation of both values will detect open circuit or short circuit errors on the wheel speed sensor.
The PCM evaluates engine speed and mass air flow if there is no vehicle speed signal. The WSS signal is also used to detect rough road conditions.
The PCM uses this signal to control the fuel injection, ignition timing, transaxle shift scheduling and torque converter clutch scheduling. The signal generated by the WSS informs the PCM not only if the vehicle speed is low or high but also if the vehicle is or is not moving. The Wheel Speed Sensor (WSS) generates a waveform with a frequency proportional to the speed of the vehicle.
The first thing I would do is change the tires to the correct size. Kmfusa app.Ok, most likely it is a abs issue.
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