3.
Has a problem been found?
YES
a.
Repair as necessary and go to "Verification of Vehicle Repair" procedure
NO
a.
Go to " CAN Signal Inspection " procedure.
Many malfunctions in the electrical system are caused by poor harness and terminals. Faults can also be caused by interference from other electrical systems, and mechanical or chemical damage.
Thoroughly check connectors for looseness, poor connection, bending, corrosion, contamination, deterioration,or damage.
Has a problem been found?
YES
Repair as necessary and go to "Verification of Vehicle Repair" procedure
NO
Go to " CAN Signal Inspection " procedure.
Ignition ON, Engine : OFF.
TCCU connector : Connect.
Monitor signal waveform between terminal 4 & 5 of TCCU harness connector C258 and chassis ground .
Shift to N Range .
Specification : Signal Waveform & Data
The above value is only for reference. The actual value may differ from it according to various engine condition.
Is CAN Signal display near the specified value?
YES
Fault is intermittent caused by poor contact in the sensor’s and/or TCCU’s connector or was repaired and TCCU memory was not cleared.Thoroughly check connectors for looseness, poor connection, bending, corrosion, contamination, deterioration, or damage. Repair or replace as necessary and then go to "Verification of Vehicle Repair" procedure.
NO
Go to " CAN(APS) comm. Line Inspection " procedure.
Ignition "OFF".
Measure resistance between terminal "4" of the TCCU harness connector and terminal "5" of the TCCU harness connector (C258).
Specification : Approx. 60Ω
The above value is only for reference. The actual value may differ from it according to various engine condition.
Is resistance display near the specified value?
YES
Fault is intermittent caused by open or short in CAN signal harnessor was repaired and TCCU memory was not cleared. Go to the applicable troubleshooting procedure.
NO
Check for open/short in CAN comunication line of TCCU circuit.
Check for the signal or component of Engine control module.
Repair as necessary and then go to "Verification of Vehicle Repair" procedure.
