Navigation Receiver Assembly Communication Stop Mode: Procedure

1. Disconnect the cable from the negative (-) battery terminal before measuring the resistances of the CAN main wire and CAN branch wire.
   WARNING:

   Wait at least 90 seconds after disconnecting the cable from the negative (-) battery terminal to disable the SRS system.

   NOTE:

   When disconnecting the cable, some systems need to be initialized after the cable is reconnected, refer to INITIALIZATION .

NEXT: Go to next step 

1. Disconnect the E25 navigation receiver assembly connector.
   Fig 1: Disconnecting E25 Navigation Receiver Assembly Connector

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

   Standard Resistance

   Tester Connection	Switch Condition	Specified Condition
   E25-2 (CANH) - E25-3 (CANL)	Ignition switch off	54 to 69 Ω

   TEXT IN ILLUSTRATION
   
   

   *a	Rear view of wire harness connector (to Navigation Receiver Assembly)

NG → REPAIR OR REPLACE NAVIGATION RECEIVER ASSEMBLY CAN BRANCH WIRE OR CONNECTOR (CANH, CANL) 

OK: Go to next step 

1. Connect the cable to the negative (-) battery terminal.
   Fig 2: Identifying E2 And E5 Navigation Receiver Assembly Connectors

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
   NOTE:

   When disconnecting the cable, some systems need to be initialized after the cable is reconnected, refer to INITIALIZATION .

2. Disconnect the E2 and E5 navigation receiver assembly connectors.
3. Measure the resistance according to the value(s) in the table below.

   Standard Resistance

   Tester Connection	Condition	Specified Condition
   E2-20 (GND) - Body ground	Always	Below 1 Ω

4. Measure the voltage according to the value(s) in the table below.

   Standard Voltage

   Tester Connection	Condition	Specified Condition
   E2-1 (B) - Body ground	Always	11 to 14 V
   E2-11 (ACC) - Body ground	Ignition switch ACC	11 to 14 V
   E5-2 (IG) - Body ground	Ignition switch ON	11 to 14 V

   TEXT IN ILLUSTRATION
   
   

   *a	Front view of wire harness connector (to Navigation Receiver Assembly)

NG → REPAIR OR REPLACE HARNESS OR CONNECTOR 

OK → See step   4