ECD SYSTEM, Diagnostic DTC:96

DTC Code DTC Name
96 EGR Valve Position Sensor Circuit Malfunction

DESCRIPTION

DTC No. DTC Detecting Condition Trouble Area
96 To EGLS signal to ECM for 1.0 sec. or more

  • Open or short in EGR valve lift sensor circuit

  • EGR valve lift sensor

  • ECM

WIRING DIAGRAM

A01KHT7E01

INSPECTION PROCEDURE

Tech Tips

Read freeze frame data using intelligent tester. Because freeze frame records the engine conditions when the malfunction is detected, when troubleshooting it is useful for determining whether the vehicle was running or stopped, the engine warmed up or not, the air-fuel ratio lean or rich, etc. at the time of the malfunction.

PROCEDURE


  1. CHECK ELECTRIC EGR CONTROL VALVE ASSEMBLY


    1. A01KGHTE01
      Text in Illustration
      *1 Ohmmeter

      Using an ohmmeter, check the resistance between terminals 1 and 2 of the EGR lift sensor.

      Resistance
      2.6 kΩ at 20°C (68°F)
    2. A01KET3E01
      Text in Illustration
      *1 Ohmmeter
      *a Vacuum

      Apply vacuum to the diaphragm chamber and then check each resistance between terminals 3 and 2 of the lift sensor when the valve is fully opened and also when fully closed.

      Resistance
      EGR Valve Resistance
      Fully opened 0.6 kΩat 20°C (68°F)
      Fully closed 2.2 kΩat 20°C (68°F)

      Tech Tips

      The resistance value increases in proportion to the opening angle of the EGR valve.


    NG

    REPLACE ELECTRIC EGR CONTROL VALVE ASSEMBLY

    OK

  2. CHECK ECM (CHECK VOLTAGE)


    1. A01KGF1E04

      Turn the ignition switch ON.

    2. Check the voltage between terminals shown in the table and illustration.

      Voltage

      Terminal

      (Positive terminal ←→ Negative terminal)

      		 Voltage
      VC (E8-21) ←→ E2 (E8-20) 4.5 - 5.5 V

    NG

    CHECK AND REPLACE ECM Click here

    OK

  3. CHECK WIRE HARNESS (ECM - EGR POSITION SENSOR)


    1. A01KHNRE01

      Disconnect the turbo pressure sensor connector.

    2. Disconnect the ECM (E8) connector.

    3. Check the continuity between terminals of the EGR position sensor and ECM connectors as shown in the illustration and table.

      Continuity (Check for open)

      Terminal

      (EGR position sensor ←→ ECM)

      		 Standard
      EGLS (3) ←→ EGLS (E8-12) Continuity
      VC (1) ←→ VC (E8-21)
      E2 (2) ←→ E2 (E8-20)
      Continuity (Check for short)

      Terminal

      (ECM ←→ ECM(Ground))

      		 Standard
      EGLS (E8-12) ←→ E1 (E7-22) No continuity
      VC (E8-21) ←→ E1 (E7-22)

    NG

    REPAIR OR REPLACE HARNESS AND CONNECTOR

    OK

  4. INSPECT SENSOR INSTALLATION


    NG

    TIGHTEN SENSOR

    OK

    CHECK AND REPLACE ECM Click here