W/Harness Inspection

Terminal and Connector Inspection

1. Many malfunctions in the electrical system are caused by poor harness(es) 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?
YES
1) Repair as necessary and go to "Verification of Vehicle Repair" procedure
NO
1) Go to "Power Supply Circuit Inspection" procedure

Power Supply Circuit Inspection

1. Ignition "OFF"
2. Disconnect FTPS connector
3. Ignition "ON" & Engine "OFF"
4. Measure voltage between terminal 3 of the FTPS harness connector and chassis ground
A. Specification : Approx. 5V




5. Is voltage within the specification?
A. Go to "Signal Circuit Inspection" procedure
B. Check for a open/short in the power supply circuit. Repair as necessary and go to "Verification of Vehicle Repair" procedure

Signal Circuit Inspection

Check for Open in Signal Circuit
1. Ignition "OFF"
2. Disconnect ECM connector
3. Measure resistance between terminals 1 of the FTPS harness connector and 33 of the ECM harness connector
A. Specification : Approx. 0 Ohm




4. Is resistance within the specification?
YES
1) Go to next step as below
NO
1) Repair as necessary and go to "Verification of Vehicle Repair" procedure
Check for Short to Ground in Signal Circuit
1. Measure resistance between terminal 1 of the FTPS harness connector and chassis ground
A. Specification :Infinite




2. Is resistance within the specification?
YES
1) Go to next step "System Inspection" procedure.
NO
1) Repair as necessary and go to "Verification of Vehicle Repair" procedure