3.
Has a problem been found?
 | ▶ Repair as necessary and go to "Verification of Vehicle Repair" procedure. |
 | ▶ Go to "Power Circuit Inspection" procedure. |
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. |
| ▶ Go to "Power Circuit Inspection" procedure. |
Ignition Switch "OFF"
Refer to "Shop Manual" and remove the glow plug relay.
Ignition Switch "ON"
Measure voltage of Pin No. 3(glow plug relay power) of the glow plug relay connector and chassis ground.
Specification : B+
Is the measured value withing specification?
| ▶ Go to "Ground Circuit Inspection" procedure. |
| ▶ Repair as necessary and go to "Verification of Vehicle Repair" procedure. |
Ignition Switch "OFF"
Refer to "Shop Manual" and remove the glow plug relay.
Ignition Switch "ON"
Measure resistance of Pin No. 2(control) of the glow plug relay connector and chassis ground.
Specification : Approx. 0V
Ignition Switch "OFF"
Disconnect battery (-) cable.
Refer to "Shop Manual" and remove the glow plug relay and disconnect the ECM/PCM connector.
Measure resistance between Pin No. 2(control) of the glow plug relay connector and Pin No. 90(control) of ECM/PCM connector.
Specification : Approx. below 1Ω
Is the measured value within specification?
| ▶ Go to "Component Inspection" procedure. |
| ▶ Repair as necessary and go to "Verification of Vehicle Repair" procedure. |
