Inspection Procedure

1. Remove the CARGO LP fuse from the main body ECU.
2. Measure the resistance according to the value(s) in the table below.

   Standard resistance 

   FUSE (CARGO LP)
   
   

   Tester Connection	Condition	Specified Condition
   CARGO LP fuse	Always	Below 1 Ω

NG: REPLACE FUSE 

OK: Go to next step 

1. Operate the Techstream according to the steps on the display and select "Active Test".
   1. Techstream

      Main Body ECU 

      MAIN BODY ECU - TECHSTREAM ACTIVE TEST CHART
      
      

      Tester Display	Test Part	Control Range	Diagnostic Note
      Cargo Lgt	Cargo light	ON or OFF	Cargo light switch is DOOR or ON

      OK: Cargo light turns on / off. 

NG: Go to step 3 

OK: PROCEED TO NEXT CIRCUIT INSPECTION SHOWN IN  PROBLEM SYMPTOMS TABLE  

1. Operate the Techstream according to the display and select the "DATA LIST" or "Data List".
   1. Techstream

      Main Body ECU 

      MAIN BODY ECU - TECHSTREAM DATA LIST CHART
      
      

      Tester Display	Measurement Item/Range	Normal Condition	Diagnostic Note
      Cargo Light	Cargo light switch signal / ON or OFF	ON: Cargo light switch ON OFF: Cargo light switch OFF	-

      OK: When cargo light switch operation is performed, the results are the same as above. 

NG: Go to step  5

OK: Go to next step 

1. Disconnect the P8 light connector.
   Fig 1: Identifying Cargo Light Connector Terminals

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
2. Measure the voltage according to the value(s) in the table below.

   Standard voltage 

   CARGO LIGHT - BATTERY AND BODY GROUND VOLTAGE
   
   

   Tester Connection	Switch Condition	Specified Condition
   P8-3 (DL) - Body ground	Cargo light switch ON	11 to 14 V
   	Cargo light switch DOOR, door is open
   	Cargo light switch OFF	Below 1 V

3. Measure the resistance according to the value(s) in the table below.

   Standard resistance 

   CARGO LIGHT - BATTERY AND BODY GROUND RESISTANCE
   
   

   Tester Connection	Switch Condition	Specified Condition
   P8-1 (E) - Body ground	Always	Below 1 Ω

NG: REPAIR OR REPLACE HARNESS OR CONNECTOR 

OK: REPLACE MAIN BODY ECU 

1. Remove the cargo light switch (see REMOVAL  ).
   Fig 2: Identifying Cargo Light Switch Connector Terminals

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
2. Measure the resistance according to the value(s) in the table below.

   Standard resistance 

   CARGO LIGHT SWITCH RESISTANCE
   
   

   Tester Connection	Switch Condition	Specified Condition
   5 (FCTY) - 9 (FLON)	Cargo tight switch ON	Below 1 Ω
   	Cargo light switch DOOR
   	Cargo light switch OFF	10 kΩ or higher
   10 (FLMP) - 7 (E)	Cargo light switch ON	Below 1 Ω
   	Cargo light switch DOOR	10 kΩ or higher
   	Cargo light switch OFF

NG: REPLACE CARGO LIGHT SWITCH  (see REMOVAL  )

OK: Go to next step 

1. Disconnect the J3 and J4 ECU connectors.
   Fig 3: Identifying Main Body ECU Connector Terminals

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
2. Measure the voltage according to the value(s) in the table below.

   Standard voltage 

   MAIN BODY ECU - BATTERY AND BODY GROUND VOLTAGE
   
   

   Tester Connection	Switch Condition	Specified Condition
   J4-14 (CGLP) -Body ground	Cargo light switch ON or DOOR	11 to 14 V
   	Cargo light switch OFF	Below 1 V

3. Measure the resistance according to the value(s) in the table below.

   Standard resistance 

   MAIN BODY ECU - BATTERY AND BODY GROUND RESISTANCE
   
   

   Tester Connection	Switch Condition	Specified Condition
   J3-9 (CGSW) - Body ground	Cargo light switch ON	Below 1 Ω
   	Cargo light switch DOOR or OFF	10 kΩ or higher

NG: REPAIR OR REPLACE HARNESS OR CONNECTOR 

OK: REPLACE MAIN BODY ECU