B1050

Factory Manual References

Factory service manual diagnostic procedure for 2004 acura tsx

A L L Diagnostic Trouble Codes ( DTC )

B1050

DTC B1050: Communication Bus Line Error

1. Clear the DTCs using the HDS.
2. Cycle the ignition switch to OFF and then back ON.

Factory service manual diagram



3. Check for DTCs using the HDS.

Are DTC(s) B1050, B1100, B1150, B1200, or B1250 indicated?

YES - Go to step 4.

NO - Intermittent failure, the system is OK at this time.

4. Check for DTCs using the HDS.

Is DTC(s) B1000 indicated?

YES - Troubleshoot DTC B1000.

NO - If DTC B1050 is indicated, replace the relay control module. If DTC B1100 is indicated, replace the door multiplex control unit. If DTC B1150 is indicated, replace the gauge control module. If DTC1200 is indicated, replace the climate control unit. If DTC B1250 is indicated, replace the combination switch control unit.

B1100

DTC B1100: Communication Circuit Error (BUS OFF)

1. Clear the DTCs using the HDS.
2. Cycle the ignition switch to OFF and then back ON.

Factory service manual diagram



3. Check for DTCs using the HDS.

Are DTC(s) B1050, B1100, B1150, B1200, or B1250 indicated?

YES - Go to step 4.

NO - Intermittent failure, the system is OK at this time.

4. Check for DTCs using the HDS.

Is DTC(s) B1000 indicated?

YES - Troubleshoot DTC B1000.

NO - If DTC B1050 is indicated, replace the relay control module. If DTC B1100 is indicated, replace the door multiplex control unit. If DTC B1150 is indicated, replace the gauge control module. If DTC1200 is indicated, replace the climate control unit. If DTC B1250 is indicated, replace the combination switch control unit.

Supporting Diagrams & Locations

Reference material from the factory manual for this diagnostic procedure.

Diagram

A/C Leak Detection (B07-025)

Diagram

Diagrams

Diagram

Diagrams

Diagram

Diagrams

Diagram

Diagrams

Diagram

Diagrams

Location

CHRYSLER Group LLC

Location

CHRYSLER Group LLC

Location

ACURA

Location

AUDI

Fuse/Relay

CHRYSLER Group LLC

Fuse/Relay

AUDI

Fuse/Relay

BMW

Fuse/Relay

CHRYSLER Group LLC

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