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 PCM 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 Fuel Level Sender 'A' harness connector.
Measure resistance between ground terminal of Fuel Level Sender 'A' harness connector and chassis ground.
Specification : Below 1Ω
Is resistance within specification?
| ▶ Go to next procedure. |
| ▶ Repair as necessary and go to "Verification of Vehicle Repair" procedure. |
IG KEY 'ON'.
Measure voltage between signal terminal of Fuel Level Sender 'A' connector and chassis ground. (Under connector connected condition)
Specification : 0.2 ~ 4.8 V (Fuel Tank no empty condition)
Is voltage within specification?
| ▶ Go to next procedure. |
| ▶ Case 0V : Repair open in signal circuit and go to "Verification of Vehicle Repair" procedure. Case 5V : Repair Short to battery in signal circuit and go to "Verification of Vehicle Repair" procedure. |
