DTC B150A: Lost Communication with HMI-LAN [11/2016 - ]: Procedure

1. Check if Navigation System DTCs are output.

   Refer to DTC CHECK / CLEAR [11/2016 - ]

   Body Electrical > Navigation System > Trouble Codes 

   OK

   Navigation system DTCs are not output.

   Result	Proceed to
   Navigation system DTCs are not output	A
   Navigation system DTCs are output	B

Result: 

B 

GO TO NAVIGATION SYSTEM. Refer to  HOW TO PROCEED WITH TROUBLESHOOTING [12/2013 - ] 

Result: 

A 

See step  2

1. Disconnect the F124 combination meter assembly connector.
2. Disconnect the F117 navigation receiver assembly*1 or F72 radio and display receiver assembly*2 connector.
3. Measure the resistance according to the value(s) in the table below.

   Standard Resistance

   Tester Connection	Condition	Specified Condition
   F117-3 (CNH1) - F124-29 (MSCH)*1	Always	Below 1 Ω
   F117-4 (CNL1) - F124-30 (MSCL)*1	Always	Below 1 Ω
   F72-3 (CNH1) - F124-29 (MSCH)*2	Always	Below 1 Ω
   F72-4 (CNL1) - F124-30 (MSCL)*2	Always	Below 1 Ω
   F124-29 (MSCH) - Body ground	Always	10 kΩ or higher
   F124-30 (MSCL) - Body ground	Always	10 kΩ or higher

   • *1: for Navigation Receiver Type
   • *2: for Radio and Display Type

Result: 

NG 

REPAIR OR REPLACE HARNESS OR CONNECTOR 

Result: 

OK 

See step  3

1. Replace the combination meter assembly with a new or known good one.

   Refer to REMOVAL [12/2013 - ]

2. Turn the ignition switch to ON and wait 30 seconds.
   NOTE:

   A maximum of 30 seconds is required to send/receive the registration information between the combination meter assembly and navigation receiver assembly*1 or radio and display receiver assembly*2.

   • *1: for Navigation Receiver Type
   • *2: for Radio and Display Type
3. Operate the steering pad switch assembly and check that the audio tab illuminates.
4. Check for DTCs.

   Refer to DTC CHECK / CLEAR [12/2013 - ]

   Body Electrical > Combination Meter > Trouble Codes 

   Result	Proceed to
   The audio tab illuminates and DTC B150A is not output	A
   The audio tab does not illuminate and DTC B150A is output (for Navigation Receiver Type)	B
   The audio tab does not illuminate and DTC B150A is output (for Radio and Display Type)	C

Result: 

A 

END 

Result: 

B 

REPLACE NAVIGATION RECEIVER ASSEMBLY. Refer to  REMOVAL [12/2013 - ] 

Result: 

C 

REPLACE RADIO AND DISPLAY RECEIVER ASSEMBLY. Refer to  REMOVAL [12/2013 - ]