3.
Is the problem found?
 | ▶ Repair the trouble causing part and go to "Verification of Vehicle Repair". |
 | ▶ Go to "Power Circuit Inspection". |
Electrical systems consist of a lot of harness and connectors, poor connection of terminals can cause various problems and damge of component.
Perform checking procedure as follows.
Check damage of harness and terminals : Check terminals for contact resistance, corrosion and deformation.
Check connecting condition of ECM and component connector : Check terminal seperation, damage of locking device and connecting condition between terminal and wiring.
Disconnect the pin which requires checking at male connector and insert it to the terminal at female connector for checking connecting condition. ( after checking, reconnect the pin at correct position. )
Is the problem found?
| ▶ Repair the trouble causing part and go to "Verification of Vehicle Repair". |
| ▶ Go to "Power Circuit Inspection". |
Check HOT AT ALL TIMES power circuit voltage
IG KEY "OFF", ENGINE "OFF".
Disconnect glow relay.
Measure the voltage between power input terminal of glow relay harness connector and chassis ground.
Specification : 11.5V~13.0V
Is the measured voltage within the specification?
| ▶ Go to "2. Check IG KEY "ON" power circuit voltage" as follows. |
| ▶ Repair GLOW PLUG FUSIBLE LINK in E/R FUSIBLE LINK BOX and related circuit and go to "Verification of Vehicle Repair". |
Check IG KEY "ON" power circuit voltage
IG KEY "OFF", ENGINE "OFF".
Disconnect glow relay.
IG KEY "ON"
Measure the voltage between power terminal of glow relay harness connector and chassis ground.
Specification : 11.5V~13.0V
Is the measured voltage within the specification?
| ▶ Go to "Control Circuit Inspection". |
| ▶ Repair INJ fuse in E/R JUNCTION BOX and related circuit and go to "Verification of Vehicle Repair". |
Check control circuit monitoring voltage
IG KEY "OFF", ENGINE "OFF".
Disconnect glow relay.
IG KEY "ON".
Measure the voltage between coil control terminal of glow relay harness connector and chassis ground.
Specification : 3.2V~3.7V
Is the measured voltage within the specification?
| ▶ Go to "Component Inspection". |
| ▶ When no value is detected : Go to "2. Check open in control circuit". ▶ When high voltage is detected : Repair short to battery in signal circuit and go to "Verification of Vehicle Repair". |
Check open in control circuit
IG KEY "OFF", ENGINE "OFF".
Disconnect glow relay and ECM connector.
Check continuity between coil control terminal of glow relay harness connector and ECM harness connector.
Specification : Continuity ( below 1.0Ω )
Is the measured resistance within the specification?
| ▶ Repair short to ground and go to "Verification of Vehicle Repair". |
| ▶ Repair open in control circuit and go to "Verification of Vehicle Repair". |
