3.
Has a problem been found?
YES
a.
Repair as necessary and go to "Verification of Vehicle Repair" procedure
NO
a.
Go to " EMC 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 " EMC Signal Inspection " procedure.
Engine : Idling.
EMC connector : Connect.
Monitor signal waveform between terminal 1 of M54 harness connector 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 EMC 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 " EMC output line ground short Inspection " procedure.
Ignition "OFF".
M54 Electric Magnet Valve Clutch connector : Disconnect.
Measure resistance between terminal 1 of Electric Magnet Valve Clutch harness connector M54 and chassis ground .
Specification : Approx. ∞ Ω
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
Go to " EMC output line open Inspection " procedure.
NO
Check for ground to short circuit of EMC output harness.
Repair as necessary and then go to "Verification of Vehicle Repair" procedure.
Ignition OFF
Electric Magnet Valve Clutch, TCCU connector : Disconnect.
Measure resistance between terminal 1 of Electric Magnet Valve Clutch harness connector M54 and terminal 26 of TCCU harness connector M79
Specification : Approx. 1Ω below.
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
Go to " EMC ground line open Inspection " procedure.
NO
Check for open circuit of EMC output harness.
Repair as necessary and then go to "Verification of Vehicle Repair" procedure.
Ignition OFF
Electric Magnet Valve Clutch, TCCU connector : Disconnect.
Measure resistance between terminal 2 of Electric Magnet Valve Clutch harness connector M54 and terminal 13 of TCCU harness connector M79 .
Specification : Approx. 1Ω below.
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
Go to " Component Inspection " procedure .
NO
Repair opened circuit of EMC ground line.
Repair as necessary and then go to "Verification of Vehicle Repair" procedure.
