Diagnosis Procedure

1. Turn ignition switch OFF.
2. Check ground connection E38. Refer to "CIRCUIT INSPECTION ".

   Is the inspection result normal? 

   YES: Go to 2.

   NO: Repair or replace ground connection.

1. Disconnect EVAP control system pressure sensor harness connector.
2. Check sensor harness connector for water.

   Water should not exist. 

   Is the inspection result normal? 

   YES: Go to 3.

   NO: Repair or replace harness connector.

1. Turn ignition switch ON.
2. Check the voltage between EVAP control system pressure sensor harness connector and ground.
   VOLTAGE REFERENCE CHART
   
   

   EVAP control system pressure sensor		Ground	Voltage
   Connector	Terminal
   B21	3	Ground	Approx. 5 V

   Is the inspection result normal? 

   YES: Go to  10.

   NO: Go to 4.

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.
   CONTINUITY CHART
   
   

   EVAP control system pressure sensor		ECM		Continuity
   Connector	Terminal	Connector	Terminal
   B21	3	F8	76	Existed

   Is the inspection result normal? 

   YES: Go to  6.

   NO: Go to 5.

Check the following.

• Harness connectors B4, M79
• Harness connectors M77, E105
• Harness connectors E8, F1
• Harness for open or short between EVAP control system pressure sensor and ECM

  Repair open circuit or short to ground or short to power in harness or connectors.

Check harness for short to power and short to ground, between the following terminals.

Is the inspection result normal? 

YES: Go to 7.

NO: Repair short to ground or short to power in harness or connectors.

Check the following.

• Battery current sensor (Refer to "COMPONENT INSPECTION ".)
• Crankshaft position sensor (POS) (Refer to "COMPONENT INSPECTION ".)
• Refrigerant pressure sensor (Refer to "DIAGNOSIS PROCEDURE ".)
• Tumble control valve (Refer to "COMPONENT INSPECTION ".)

  Is the inspection result normal? 

  YES: Go to 8.

  NO: Replace malfunctioning component.

Refer to "COMPONENT INSPECTION ".

Is the inspection result normal? 

YES: Go to  10.

NO: Go to 9.

Replace accelerator pedal assembly. Refer to "REMOVAL AND INSTALLATION ".

INSPECTION END

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.
   CONTINUITY CHART
   
   

   EVAP control system pressure sensor		ECM		Continuity
   Connector	Terminal	Connector	Terminal
   B21	1	F8	51	Existed

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

   Is the inspection result normal? 

   YES: Go to  12.

   NO: Go to 11.

Check the following.

• Harness connectors B4, M79
• Harness connectors M77, E105
• Harness connectors E8, F1
• Harness for open or short between EVAP control system pressure sensor and ECM

  Repair open circuit or short to ground or short to power in harness or connectors.

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

   EVAP control system pressure sensor		ECM		Continuity
   Connector	Terminal	Connector	Terminal
   B21	2	F8	42	Existed

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

   Is the inspection result normal? 

   YES: Go to  14.

   NO: Go to 13.

Check the following.

• Harness connectors B4, M79
• Harness connectors M77, E105
• Harness connectors E8, F1
• Harness for open or short between EVAP control system pressure sensor and ECM

  Repair open circuit or short to ground or short to power in harness or connectors.

Refer to "COMPONENT INSPECTION ".

Is the inspection result normal? 

YES: Go to 15.

NO: Replace EVAP control system pressure sensor. Refer to "EXPLODED VIEW ".

Refer to "INTERMITTENT INCIDENT ".

INSPECTION END