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Home › Hyundai › 2004 › Accent Base › Repair and Diagnosis › Engine Performance › System › Engine Control System Diagnosis (2 Of 2) › DTC Troubleshooting Procedures › DTC P1308: Acceleration Sensor Circuit Low Input › Power Circuit Inspection

Power Circuit Inspection

  1. Ignition "OFF"
  2. Disconnect Acceleration sensor connector.
  3. Ignition "ON" & Engine "OFF"
  4. Measure voltage between terminal 1 of sensor harness connector and chassis ground.

    Specification: approximately 5V

    Fig 1: Measuring Voltage Between Terminal 1 Of Sensor Harness Connector And Chassis Ground
    G03852033Courtesy of HYUNDAI MOTOR CO.
  5. Is measure voltage within Specification?

    YES 

    NO 

    • Short circuit to chassis ground between Acceleration sensor harness connector and reference voltage.
    • Open circuit between Acceleration sensor harness connector and PCM connector.
    • Repair as necessary and then go to "VERIFICATION OF VEHICLE REPAIR " procedure.
    NOTE: In case, when acceleration sensor connector is disconnected, the voltage at terminal 1 is 0V.
    • Possible cause: Open or short circuit in harness between terminal 32 of PCM and terminal 1 of acceleration sensor or PCM
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