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 disconnect the EEGR actuator connector.
Ignition Switch "ON"
Measure voltage of Pin No. 4(power) of the EEGR connector and chassis ground.
Specification : B+
Is the measured value withing specification?
| ▶ Go to "Control Circuit Inspection" procedure. |
| ▶ Repair as necessary and go to "Verification of Vehicle Repair" procedure. |
Ignition Switch "OFF"
Refer to "Shop Manual" and disconnect the EEGR actuator connector.
Connect VMI to GDS and perform oscilloscope.(2 Chennel):
Channel A (+) : Pin No.5(EGR actuator control) terminal (EEGR Connector Side)
Channel A (-) : Ground
Ignition Switch "ON" & Engine "OFF"
Specification : Average value approx. 11.5V (Duty, Refer to Fig. below)
Fig.1 ) Waveform of EGR Actuator Signal
Is the measured value withing specification?
| ▶ Go to "Component Inspection" procedure. |
| ▶ Repair as necessary and go to "Verification of Vehicle Repair" procedure. |
