3.
Has a problem been found?
YES
a.
Repair as necessary and go to "Verification Vehicle Repair" procedure .
NO
a.
Go to "W/Harness 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 Vehicle Repair" procedure .
NO
Go to "W/Harness Inspection" procedure.
Check for open in harness.
Ignition "OFF".
Disconnect passenger air mix actuator.
Measure resistance between terminal "6" of passenger air mix actuator and terminal "A18" of A/C control unit.
Specification :Approx. 0 Ω
Is the measured resistance within specifications?
YES
Go to "Check for short to ground in harness" procedure.
NO
Check for open in signal harness. Repair as necessary and go to "Verification of Vehicle Repair" procedure.
Check for short to ground in harness.
Ignition "OFF".
Disconnect passenger air mix actuator.
Measure resistance between terminal "6" of passenger air mix actuator and chassis ground.
Specification :Approx. ∞ Ω
Is the measured resistance within specifications?
YES
Go to "Power circuit Inspection" procedure.
NO
Check for short to ground in signal harness. Repair as necessary and go to "Verification of Vehicle Repair" procedure.
Check for open in harness
Ignition "ON".
Connect passenger air mix actuator.
Measure resistance between terminal "7" of passenger air mix actuator and terminal "B1" of A/C Control Unit.
Specification :Approx. 0 Ω
Is the measured resistance within specifications?
YES
Go to "Check for short in harness " procedure.
NO
Check for open in harness. Repair as necessary and go to "Verification of Vehicle Repair" procedure.
Check for short in harness
Ignition "ON".
Connect passenger air mix actuator.
Measure resistance between terminal "7" of passenger air mix actuator and chassis ground.
Specification. :Approx. ∞ Ω
Is the measured resistance within specifications?
YES
Go to "Component Inspection" procedure.
NO
Check for short in harness. Repair as necessary and go to "Verification of Vehicle Repair" procedure.
