Dtc Description

DTC Description

DTC DETECTION LOGIC

POSSIBLE CAUSE

• Harness or connectors (EVAP control system pressure sensor circuit is shorted.)

• EVAP control system pressure sensor

FAIL-SAFE

Not applicable

Confirmation Procedure

Confirmation Procedure

1. PRECONDITIONING

   If DTC Confirmation Procedure has been previously conducted, always turn ignition switch OFF and wait at least 10 seconds before conducting the next test.

   TESTING CONDITION:

   Always perform test at a temperature of 5°C (41°F) or more.

   >>

   GO TO 2.

2. PERFORM DTC CONFIRMATION PROCEDURE

   With CONSULT

   1. Start the engine and warm it up to normal operating temperature.

   2. Turn ignition switch OFF and wait at least 10 seconds.

   3. Turn ignition switch ON.

   4. Select “DATA MONITOR” mode of “ENGINE” using CONSULT.

   5. Make sure that “FUEL T/TMP SE” indication is more than 0°C (32°F).

   6. Start the engine and wait at least 20 seconds.

   7. Check 1st trip DTC.

   With GST

   1. Start the engine and warm it up to normal operating temperature.

   2. Set voltmeter probes to ECM harness connector terminals as per the following.

      ECM			Voltage
      Connector	+	−
      	Terminal
      E16	138	158	Less than 4.2 V

   3. Make sure that the voltage is less than 4.2 V.

   4. Turn ignition switch OFF and wait at least 10 seconds.

   5. Start engine and wait at least 20 seconds.

   6. Check 1st trip DTC.

   Is 1st trip DTC detected?

   YES >>

   Proceed to DTC Diagnosis Procedure.

   NO-1 >>

   To check malfunction symptom before repair: Refer to Intermittent Incident.

   NO-2 >>

   Confirmation after repair: INSPECTION END

Dtc Diagnosis Procedure

DTC Diagnosis Procedure

1. CHECK EVAP CONTROL SYSTEM PRESSURE SENSOR CONNECTOR FOR WATER

   1. Turn ignition switch OFF.

   2. Disconnect EVAP control system pressure sensor harness connector.

   3. Check sensor harness connector for water.

      Water should not exist.

   Is the inspection result normal?

   YES >>

   GO TO 2.

   NO >>

   Repair or replace harness connector.

2. CHECK EVAP CONTROL SYSTEM PRESSURE SENSOR POWER SUPPLY

   1. Turn ignition switch ON.

   2. Check the voltage between EVAP control system pressure sensor harness connector and ground.

      +		−	Voltage (Approx.)
      EVAP control system pressure sensor
      Connector	Terminal
      B65	3	Ground	5 V

   Is the inspection result normal?

   YES >>

   GO TO 4.

   NO >>

   GO TO 3.

3. CHECK EVAP CONTROL SYSTEM PRESSURE SENSOR POWER SUPPLY CIRCUIT

   1. Turn ignition switch OFF.

   2. Disconnect ECM harness connector.

   3. Check the continuity between EVAP control system pressure sensor harness connector and ECM harness connector.

      EVAP control system pressure sensor		ECM		Continuity
      Connector	Terminal	Connector	Terminal
      B65	3	E16	135	Existed

   4. Also check harness for short to ground and to power.

   Is the inspection result normal?

   YES >>

   Perform the trouble diagnosis for power supply circuit.

   NO >>

   Repair or replace malfunctioning part.

4. CHECK EVAP CONTROL SYSTEM PRESSURE SENSOR GROUND CIRCUIT

   1. Turn ignition switch OFF.

   2. Disconnect ECM harness connector.

   3. Check the continuity between EVAP control system pressure sensor harness connector and ECM harness connector.

      EVAP control system pressure sensor		ECM		Continuity
      Connector	Terminal	Connector	Terminal
      B65	1	E16	158	Existed

   4. Also check harness for short to power.

   Is the inspection result normal?

   YES >>

   GO TO 5.

   NO >>

   Repair or replace malfunctioning part.

5. CHECK EVAP CONTROL SYSTEM PRESSURE SENSOR SIGNAL CIRCUIT

   1. Check the continuity between EVAP control system pressure sensor harness connector and ECM harness connector.

      EVAP control system pressure sensor		ECM		Continuity
      Connector	Terminal	Connector	Terminal
      B65	2	E16	131	Existed

   2. Also check harness for short to ground and to power.

   Is the inspection result normal?

   YES >>

   GO TO 6.

   NO >>

   Repair or replace malfunctioning part.

6. CHECK EVAP CONTROL SYSTEM PRESSURE SENSOR

   Check the EVAP control system pressure sensor. Refer to Component Inspection.

   Is the inspection result normal?

   YES >>

   INSPECTION END

   NO >>

   Replace EVAP control system pressure sensor. Refer to Exploded View.