3.
Has a problem been found?
YES
a.
Repair as necessary and go to "Verification Vehicle Repair" procedure
NO
a.
Go to "Component 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 "Component Inspection" procedure
Ignition "OFF"
Disconnect front height motor.
Measure resistance between terminal "C3" of IMS and terminal "4" of front height sensor.
Measure resistance between terminal "D4" of IMS and terminal "1" of front height sensor.
Specification :Approx. 0 Ω
Is the measured resistance within specifications?
YES
Go to "Check for short in harness" procedure.
NO
Check for open in signal harness. Repair as necessary and go to "Verification of Vehicle Repair" procedure.
Ignition "OFF"
Disconnect front height motor.
Measure resistance between terminal "1" and "4" of front height sensor and chassis ground
Specification :Approx. ∞ Ω
Is the measured resistance within specifications?
YES
Go to "Power circuit Inspection" procedure.
NO
Check for short in signal harness. Repair as necessary and go to "Verification of Vehicle Repair" procedure.
1) Check for open in harness
Ignition "OFF"
Disconnect front height motor.
Measure resistance between terminal "B3" of IMS and terminal "5" of front height motor.
Measure resistance between terminal "B8" of IMS and terminal "2" of front height motor.
Specification :Approx. 0 Ω
Is the measured resistance within specifications?
YES
Go to "Check for short in harness" procedure.
NO
Check for open in motor power harness. Repair as necessary and go to "Verification of Vehicle Repair" procedure.
2) Check for short in harness
Ignition "OFF"
Disconnect front height motor.
Measure resistance between terminal "2" of front height motor and chassis ground
Measure resistance between terminal "5" of front height motor and chassis ground
Specification :Approx. ∞ Ω
Is the measured resistance within specifications?
YES
Go to "Sensor Power circuit Inspection" procedure.
NO
Check for short in power harness. Repair as necessary and go to "Verification of Vehicle Repair" procedure.
Ignition "OFF"
Disconnect front height motor.
Measure voltage between terminal "3" of front height motor and chassis ground
Specification : Approx. 5V
Is the measured voltage within specifications?
YES
Go to "Ground circuit Inspection" procedure.
NO
Check for open or short in harness. Repair as necessary and go to "Verification of Vehicle Repair" procedure.
Ignition "OFF"
Disconnect front height motor.
Measure resistance between terminal "6" of front height motor and chassis ground
Specification :Approx. 0 Ω
Is the measured resistance within specifications?
YES
Go to "Component Inspection " procedure.
NO
Check for open in ground harness. Repair as necessary and go to "Verification of Vehicle Repair" procedure.
