Diagnosis Procedure

1. Disconnect EVAP control system pressure sensor harness connector.
2. Check that water is not inside connectors.

   Is the inspection result normal? 

   YES: GO TO 2.

   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.
   TERMINALS VOLTAGE REFERENCE CHART
   
   

   EVAP control system pressure sensor		Ground	Voltage (V)
   Connector	Terminal
   B73	3	Ground	Approx. 5

   Is the inspection result normal? 

   YES: GO TO  9.

   NO: GO TO 3.

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.
   TERMINALS CONTINUITY REFERENCE CHART
   
   

   EVAP control system pressure sensor		ECM		Continuity
   Connector	Terminal	Connector	Terminal
   B73	3	M160	133	Existed

   Is the inspection result normal? 

   YES: GO TO  5.

   NO: GO TO 4.

Check the following.

• Harness for open between ECM and EVAP control system pressure sensor
• Loose or poor connection for each connector and harness

  Repair open circuit.

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

Is the inspection result normal? 

YES: GO TO 6.

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

Check the following.

• CKP sensor (Refer to "COMPONENT INSPECTION (CRANKSHAFT POSITION SENSOR) ".)
• Camshaft position sensor (bank 1) (Refer to "COMPONENT INSPECTION (CAMSHAFT POSITION SENSOR) ".)
• Battery current sensor (Refer to "COMPONENT INSPECTION (BATTERY CURRENT SENSOR) ".)
• EVAP control system pressure sensor (Refer to "COMPONENT INSPECTION (EVAP CONTROL SYSTEM PRESSURE SENSOR) ".)
• Refrigerant pressure sensor (Refer to "DIAGNOSIS PROCEDURE ".)

  Is the inspection result normal? 

  YES: GO TO 7.

  NO: Replace malfunctioning component.

Refer to "COMPONENT INSPECTION (ACCELERATOR PEDAL POSITION SENSOR) ".

Is the inspection result normal? 

YES: GO TO  14.

NO: GO TO 8.

Replace accelerator pedal assembly.

Refer to "MODELS WITHOUT DISTANCE CONTROL ASSIST SYSTEM : REMOVAL AND INSTALLATION " (Without distance control assist system)

Refer to "MODELS WITH DISTANCE CONTROL ASSIST SYSTEM : REMOVAL AND INSTALLATION " (With distance control assist system).

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.
   TERMINALS CONTINUITY REFERENCE CHART
   
   

   EVAP control system pressure sensor		ECM		Continuity
   Connector	Terminal	Connector	Terminal
   B73	1	M160	150	Existed

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

   Is the inspection result normal? 

   YES: GO TO  11.

   NO: GO TO 10.

Check the following.

• Harness for open or short between EVAP control system pressure sensor and ECM
• Loose or poor connection for each connector and harness

  Repair open circuit, 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.
   TERMINALS CONTINUITY REFERENCE CHART
   
   

   EVAP control system pressure sensor		ECM		Continuity
   Connector	Terminal	Connector	Terminal
   B73	2	M160	143	Existed

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

   Is the inspection result normal? 

   YES: GO TO  13.

   NO: GO TO 12.

Check the following.

• Harness for open or short between EVAP control system pressure sensor and ECM
• Loose or poor connection for each connector and harness

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

Refer to "COMPONENT INSPECTION (EVAP CONTROL SYSTEM PRESSURE SENSOR) ".

Is the inspection result normal? 

YES: GO TO 14.

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

Refer to "INTERMITTENT INCIDENT ".

INSPECTION END