Diagnosis procedure
1.Check connector
Is the inspection result normal? YES >> GO TO 2.
NO >> Repair the terminal and connector.
2.Check harness for open circuit
Is the measurement value within the specification? Yes >> go to 3.
No >> repair the eps control unit branch line.
3.Check power supply and ground circuit
Check the power supply and the ground circuit of the EPS control unit. Refer to STC-22, "Diagnosis Procedure".
Is the inspection result normal? YES (Present error)>>Replace the EPS control unit. Refer to STC-39, "Removal and Installation".
YES (Past error)>>Error was detected in the EPS control unit branch line.
NO >> Repair the power supply and the ground circuit.
Precautions for Suspension
When installing rubber bushings, the final tightening must be carried
out under unladen conditions with tires
on ground. Spilled oil might shorten the life of rubber bushings. Be sure to
wipe off any spilled oil
Unladen conditions mean that fuel, engine coolant and lubricant are full. ...
Basic inspection
Diagnosis and repair work flow
Work flow
OVERALL SEQUENCE
DETAILED FLOW
1.GET INFORMATION FOR SYMPTOM
Get detailed information from the customer about the symptom (the
condition and the environment when
the incident/malfunction occurs).
Check operation condition of the function th ...
C1609 Vehicle speed signal
DTC Logic
Dtc detection logic
DTC
Display item
Malfunction detected condition
Possible cause
C1609
CAN VHCL SPEED
Malfunction is detected in vehicle speed signal that
is output from abs actuator and electric unit (control
unit) via can communication. ...