Vehicle Speed Signal Circuit

PARK ASSIST / MONITORING: INTUITIVE PARKING ASSIST SYSTEM: Vehicle Speed Signal Circuit

Vehicle Speed Signal Circuit

WIRING DIAGRAM





INSPECTION PROCEDURE

PROCEDURE

1. CHECK COMBINATION METER ASSEMBLY (SPEED SIGNAL)





(a) Disconnect the J35 ECU connector.
(b) Using an oscilloscope, check the signal waveform of the meter.





OK:
Refer to the illustration.

HINT: As the vehicle speed increases, the wave length shortens.

NG -- CHECK HARNESS AND CONNECTOR (ECU - METER)
OK -- PROCEED TO NEXT CIRCUIT INSPECTION SHOWN IN PROBLEM SYMPTOMS TABLE
2. CHECK HARNESS AND CONNECTOR (ECU - METER)





(a) Disconnect the J35 ECU connector.
(b) Disconnect the J28 meter connector.
(c) Measure the resistance according to the value(s) in the table below.
Standard resistance:





NG -- REPAIR OR REPLACE HARNESS OR CONNECTOR
OK -- GO TO METER / GAUGE SYSTEM