Ignition switch "OFF"
Connect VMI to GDS and set up an oscilloscope as follow (2-channel);
Channel A (+) : Signal terminal (RPS Harness Connector)
Channel A (-) : Ground
Connect GDS to Data Link Connector (DLC).
Ignition switch "ON" & Engine "ON"
Inspection condition : Engine idle & W.O.T
Specification :
Output signal voltage under engine idle: Approx. below 1.1V (Rail pressure : Approx. 120 ~ 300 bar)
Output signal voltage under W.O.T : Approx. 4.5V (Rail Pressure : Approx. 1,600 ~ 2,000 bar)
Is the measured value within specification?
![]() | ▶ Fault is intermittent caused by poor contact in the sensor's and/or ECM's connector or was repaired and ECM memory was not cleared. Thoroughly check connectors for looseness, poor connection, bending, corrosion, contamination, deterioration, or damage. Repair or replace as necessary and go to "Verification of vehicle Repair" procedure. |
![]() | ▶ Carefully re-do this troubleshooting guide steps. ▶ If no problems were found with the circuits or connectors, replace the RPS and go to "Verification of Vehicle Repair" procedure. |
When installing component, tighten it within specification.
If component is dropped, check for proper operation. The internal damage may be present.