W/Harness Inspection

Body Control

Integrated Memory System - B1955 Recline Motor Or Sensor Error W/Harness Inspection

Terminal and Connector Inspection

1. 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.
2. Thoroughly check connectors for looseness, poor connection, bending, corrosion, contamination, deterioration, or damage.
3. Has a problem been found?






Signal Circuit Inspection

Check for open in harness
1. Ignition "OFF"
2. Disconnect power seat recline motor.
3. Measure resistance between terminal "C1" of IMS and terminal "4" of power seat recline sensor.
4. Measure resistance between terminal "D8" of IMS and terminal "1" of power seat recline sensor.

Specification : Approx. 0 Ohms





5. Is the measured resistance within specifications?





Check for short in harness
1. Ignition "OFF"
2. Disconnect power seat recline motor.
3. Measure resistance between terminal "1" and "4" of power seat recline sensor and chassis ground

Specification : Approx. Infinity Ohms





4. Is the measured resistance within specifications?






Power Supply Circuit Inspection

Motor Power circuit Inspection
1) Check for open in harness
1. Ignition "OFF"
2. Disconnect power seat recline motor.
3. Measure resistance between terminal "A2" of IMS and terminal "5" of power seat recline motor.
4. Measure resistance between terminal "A1" of IMS and terminal "2" of power seat recline motor.

Specification : Approx. 0 Ohms





5. Is the measured resistance within specifications?





2) Check for short in harness
1. Ignition "OFF"
2. Disconnect power seat recline motor.
3. Measure resistance between terminal "2" of power seat recline motor and chassis ground
4. Measure resistance between terminal "5" of power seat recline motor and chassis ground

Specification : Approx. Infinity Ohms





5. Is the measured resistance within specifications?





Sensor Power circuit Inspection
1. Ignition "OFF"
2. Disconnect power seat recline motor.
3. Measure voltage between terminal "3" of power seat recline motor and chassis ground

Specification : Approx. 5 V





4. Is the measured voltage within specifications?






Ground Circuit inspection

Check for open in harness
1. Ignition "OFF"
2. Disconnect power seat recline motor.
3. Measure resistance between terminal "6" of power seat recline motor and chassis ground

Specification : Approx. 0 Ohms





4. Is the measured resistance within specifications?