Diagnosis Procedure

Regarding Wiring Diagram information, refer to WIRING DIAGRAM .

1. CHECK HARNESS BETWEEN INVERTER UNIT AND AC 120V OUTLET
   
   
   1. Turn ignition switch OFF.
   2. Disconnect inverter unit and AC 120V outlet connectors.
   3. Check continuity between inverter unit connector B82 terminals 5, 1 and AC 120V outlet connector M256 terminals 1, 4.

      Inverter unit		AC 120V outlet		Continuity
      Connector	Terminal	Connector	Terminal
      B82	5	M256	1	Yes
      	1		4

   4. Check continuity between inverter unit connector B82 terminals 5, 1 and ground.

      Inverter unit		Ground	Continuity
      Connector	Terminal
      B82	5	-	No
      	1

   5. Check continuity between inverter unit connector B82 terminals 5 and 1.

      Inverter unit			Continuity
      Connector	Terminal
      B82	5	1	No

   Is the inspection result normal?

   YES 

   GO TO STEP 2. 

   NO 

   Repair or replace the harness or connectors.

2. CHECK INVERTER UNIT OUTPUT SIGNAL
   
   
   1. Connect inverter unit and AC 120V outlet connectors.
   2. Turn ignition switch ON.
   3. AC 120V outlet main switch ON (AC 120V outlet main switch indicator ON).
   4. Check voltage between inverter unit connector B82 terminals 5 and 1.
      CAUTION:

      • To measure AC 120V output signal, always use the circuit tester AC range.
      • Never allow the probes to contact each other.

      Inverter unit connector B82 terminals		Condition	Voltage (Approx.)
      (+)	(-)	AC 120V outlet main switch
      5	1	OFF	0V
      		ON	AC 120V

   Is the inspection result normal?

   YES 

   GO TO STEP 3 

   NO 

   Replace inverter unit.

3. CHECK AC 120V OUTLET VOLTAGE
   
   

   Check voltage between AC 120V outlet M256 terminals 1 and 4.

   CAUTION:

   • To measure AC 120V output signal, always use the circuit tester AC range.
   • Never allow the probes to contact each other.

   AC 120V outlet connector M256 terminals		Condition	Voltage (Approx.)
   (+)	(-)	AC 120V outlet main switch
   1	4	OFF	0V
   		ON	AC 120V

   Is the inspection result normal?

   YES 

   GO TO STEP 4 

   NO 

   Replace AC 120V outlet.

4. CHECK AC 120V OUTLET GROUND CIRCUIT
   
   
   1. AC 120V outlet main switch OFF.
   2. Turn ignition switch OFF.
   3. Disconnect AC 120V outlet connector.
   4. Check continuity between AC 120V outlet connector M256 terminal 3 and ground.

      AC 120V outlet		Ground	Continuity
      Connector	Terminal
      M256	3	-	Yes

   Is the inspection result normal?

   YES 

   Replace AC 120V outlet.

   NO 

   Repair AC 120V outlet ground circuit.