3.
Has a problem been found?
YES
a.
Repair as necessary and go to "Verification of Vehicle Repair" procedure.
NO
a.
Go to "CMPS Power circuit 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 "CMPS Power circuit inspection" procedure.
Key "OFF".
Disconnect CMPS connector.
key "ON".
Measure the voltage between terminal 1 of CMPS harness connector and chassis ground.
Specification : B+
Is the measured voltage within specification ?
YES
Go to "Signal circuit inspection" procedure.
NO
Repair Open or Short circuit and then, go to "Verification of Vehicle Repair" procedure.
Check Open in signal circuit
Key "OFF".
Disconnect CMPS connector.
key "ON".
Measure the voltage between terminal 2 of CMPS harness connector and chassis ground.
Specification : Approx 12V
Is the measured voltage within specification ?
YES
Go to "Short to power circuit inspection" procedure.
NO
Repair Open in signal circuit and then, go to "Verification of Vehicle Repair" procedure.
Check Short to power in signal circuit
Key "OFF".
Disconnect CMPS connector and PCM connector.
Measure the resistance between terminal 1 and 2 of CMPS harness connector.
Specification : Infinite
Is the measured resistance within specifications ?
YES
Go to "Ground circuit inspection" procedure.
NO
Repair Short to power in signal circuit and then, go to "Verification of Vehicle Repair" procedure.
Key "OFF".
Disconnect CMPS connector.
Key "ON".
Measure the voltage between terminal 2 of CMPS harness connector and chassis ground.(A)
Measure the voltage between terminal 2 and 3 of CMPS harness connector.(B)
Specification : "A" - "B" = Below 200mV
Is the measured voltage within specification ?
YES
Go to "Component Inspection" procedure.
NO
Repair Open in signal circuit and then, go to "Verification of Vehicle Repair" procedure.
