W/Harness Inspection

Smart Key Unit
B1991 Immobilizer TX Short Circuit To Ground - Inspection/Repair:_:W/Harness Inspection

Terminal & 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 ?






Immobilizer TX Terminal Inspection

Check short to ground on IMMO TX terminal
1. IG "ON" & ENG "OFF".
2. Disconnect the connectors of Smartkey Module, FOB_Holder.
3. Measure resistance between IMMO TX terminal and chassis ground.

Specification :Infinity Ohms








4. 5. Is the measured resistance within specifications ?