Component Inspection
- Check resistance of OTS
- IG "ON" & ENG "OFF"
- Monitor Oil Temperature parameter on the scan tool
- IG "OFF" & ENG "OFF"
- Disconnect OTS connector.
- Measure resistance between terminal 1 and 2 of OTS connector (Component Side)
SPECIFICATION:
SPECIFICATIONTemperature (°C/°F) Resistance (kΩ) -20°C/-4°F 16.52kΩ 20°C/68°F 2.45kΩ 80°C/176°F 0.29kΩ - Is the measured resistance within specification?
YES
- Go to step 2.
NO
- Substitute with a known-good OTS and check for proper operation. If the problem is corrected, replace OTS and go to "VERIFICATION OF VEHICLE REPAIR " procedure.
- Check ECM
- Ignition "OFF" and Connect Scan Tool
- Ignition "ON" & Engine "OFF"
- Select simulation function on scan tool.
- Simulate voltage at terminal "1" of OTS signal harness connector.
- Does the OTS signal value changes according to simulation voltage?
YES
- Thoroughly check connectors for looseness, poor connection, bending, corrosion, contamination, deterioration, or damage. Repair or replace if necessary and go to "VERIFICATION OF VEHICLE REPAIR " procedure
NO
- Substitute with a known-good ECM and check for proper operation. If the problem is corrected, replace ECM and go to "VERIFICATION OF VEHICLE REPAIR " procedure.NOTE: There is a memory reset function on scan tool that can erase optional parts automatically detected and memorized by ECM. After testing ECM on the vehicle, use this function before reusing the ECM