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.
Thoroughly check connectors for looseness, poor connection, bending, corrosion, contamination, deterioration, or damage.
Has a problem been found?
 | ▶ Repair as necessary and go to "Verification of Vehicle Repair" procedure. |
 | ▶ Check for poor connection between ECM and component: backed out terminal, improper mating, broken locks or poor terminal to wire connection. Repair as necessary and go to "Verification of Vehicle Repair" procedure. |
IG KEY OFF.
Disconnect clutch switch harness connector.
IG KEY ON.
Measure voltage between signal terminal of clutch switch harness connector and chassis ground.
Specification : 12 V
Is voltage within specification?
| ▶ Go to next procedure. |
| ▶ Repair as necessary and go to "Verification of Vehicle Repair" procedure. |
IG KEY OFF.
Disconnect clutch switch harness connector and ECM harness connector.
Measure resistance between both ends of signal line.
Specification : Approx. 0 Ω
Is resistance within specification?
| ▶ Go to next procedure. |
| ▶ Repair as necessary and go to "Verification of Vehicle Repair" procedure. |
