Mike's Workshop Manuals: Service manuals for every vehicle
Home >> Hyundai >> 2004 >> Tiburon Base, Standard >> Repair and Diagnosis >> Engine Performance >> Engine Control Systems >> Fuel System (2.0L) >> DTC Troubleshooting Procedures >> DTC P0340: Camshaft Position Sensor Circuit Malfunction >> Inspection Procedures

Inspection Procedures

  1. CHECK CMPS AND ECM CONNECTORS
    1. CHECK the CMPS and ECM for poor connection, misplaced, bent, loose or corroded terminals.

    Are both connectors good? 

    Yes: Go to next

    No: Repair or replace it.

  2. CHECK POWER TO CMPS
    1. Turn ignition switch to OFF position and disconnect CMPS connector.
    2. Turn ignition switch to ON position and measure voltage between terminal 1 of the CMPS harness connector and chassis ground.
    • Specifications: approximately B+ 

    Is voltage within specification? 

    Fig 1: Measuring Voltage Between Terminal 1 Of CMPS Harness Connector & Chassis Ground
    G00883437Courtesy of HYUNDAI MOTOR CO.

    Yes: Go to next

    No: Repair open or short to chassis ground in harness.

  3. CHECK FOR OPEN IN HARNESS
    1. Turn ignition switch to OFF position and disconnect ECM connector.
    2. Measure resistance between terminal 2 of the CMPS harness connector and 72 of the ECM harness connector.
    3. Measure resistance between terminal 3 of the CMPS harness connector and 30 of the ECM harness connector.
    Fig 2: Measuring Resistance Between Terminal Of CMPS Harness Connector & Of ECM Harness Connector
    G00883438Courtesy of HYUNDAI MOTOR CO.
    • Specifications: below 1ohm 

    Does each resistance indicate continuity? 

    Yes: Go to next

    No: Repair open in harness.

  4. CHECK FOR SHORT TO POWER IN HARNESS
    1. Turn ignition switch to ON position and keep the ECM and CMPS connectors disconnected.
    2. Measure the voltage between terminal 2 of the CMPS harness connector and chassis ground.
    Fig 3: Measuring Voltage Between Terminal 2 Of CMPS Harness Connector & Chassis Ground
    G00883439Courtesy of HYUNDAI MOTOR CO.
    • Specifications: below 0.5V 

    Is the voltage within the specification? 

    Yes: Go to next

    No: Repair short to power in harness.

  5. CHECK FOR SHORT TO GROUND IN HARNESS
    1. Turn the ignition switch OFF and keep the ECM and CMPS connectors disconnected.
    2. Measure the resistance between terminal 2 of the CMPS harness connector and chassis ground.
    3. Measure resistance between terminals 3 and 2 of CMPS harness connector.
    Fig 4: Measuring Resistance Between Terminals 3 & 2 Of CMPS Harness Connector
    G00883440Courtesy of HYUNDAI MOTOR CO.
    • Specifications: infinite 

    Does each resistance indicate open? 

    Yes: Go to next

    No: Repair short to chassis ground in harness.

  6. CHECK CMPS SIGNAL
    1. Connect Hi-Scan (Pro) to data link connector.
    2. Start engine and monitor CMPS signal with normal operating temperature.

    Is signal continuously fluctuating between 0V and 5V? 

    Yes: Proceed with ECM PROBLEM PROCEDURE  .

    No: Replace CMPS.

scientia non olet · About Mike's Workshop Manuals