B1905

Factory Manual References

Factory service manual diagnostic procedure for 2009 acura csx

DTC B1155: Gauge Control Module Lost Communication with the MICU (Headlight Switch Message)

NOTE: If you are troubleshooting multiple DTCs, be sure to follow the instructions in B-CAN System Diagnosis Test Mode A (see TROUBLESHOOTING - B-CAN SYSTEM DIAGNOSIS TEST MODE A ).
  1. Clear the DTCs with the HDS.
  2. Turn the ignition switch OFF, and then back ON (II).
  3. Wait for 6 seconds or more.
  4. Check for DTCs with the HDS.

    Is DTC B1155 indicated? 

    YES  -Go to step 5.

    NO  -Intermittent failure. The gauge control module is OK at this time. Check for loose or poor connections. If the connections are good, check the battery condition (see BATTERY ), and the charging system.

  5. Check for DTCs with the HDS.

    Are DTCs B1905 or B1211 also indicated? 

    YES  -Faulty MICU; replace the under-dash fuse/relay box.

    NO  -Replace the gauge control module (tach).

DTC B1156: Gauge Control Module Lost Communication with the MICU (Wiper Switch Message)

NOTE: If you are troubleshooting multiple DTC, be sure to follow the instructions in B-CAN System Diagnosis Test Mode A (see TROUBLESHOOTING - B-CAN SYSTEM DIAGNOSIS TEST MODE A ).
  1. Clear the DTCs with the HDS.
  2. Turn the ignition switch OFF, and then back ON (II).
  3. Wait for 6 seconds or more.
  4. Check for DTCs with the HDS.

    Is DTC B1156 indicated? 

    YES  -Go to step 5.

    NO  -Intermittent failure. The gauge control module is OK at this time. Check for loose or poor connections. If the connections are good, check the battery condition (see BATTERY ), and the charging system.

  5. Check for DTCs with the HDS.

    Are DTCs B1905 or B1211 also indicated? 

    YES  -Faulty MICU; replace the under-dash fuse/relay box.

    NO  -Replace the gauge control module (tach).

DTC B1157: Gauge Control Module Lost Communication with the MICU (MICU Message)

NOTE: If you are troubleshooting multiple DTCs, be sure to follow the instructions in B-CAN System Diagnosis Test Mode A (see TROUBLESHOOTING - B-CAN SYSTEM DIAGNOSIS TEST MODE A ).
  1. Clear the DTCs with the HDS.
  2. Turn the ignition switch OFF, and then back ON (II).
  3. Wait for 6 seconds or more.
  4. Check for DTCs with the HDS.

    Is DTC B1157 indicated? 

    YES  -Go to step 5.

    NO  -Intermittent failure. The gauge control module is OK at this time. Check for loose or poor connections. If the connections are good, check the battery condition (see BATTERY ), and the charging system.

  5. Check for DTCs with the HDS.

    Are DTCs B1905 or B1211 also indicated? 

    YES  -Faulty MICU; replace the under-dash fuse/relay box.

    NO  -Replace the gauge control module (tach).

Supporting Diagrams & Locations

Reference material from the factory manual for this diagnostic procedure.

Diagram

Circuit Diagram

Diagram

Circuit Diagram

Diagram

Circuit Diagram

Diagram

Body Controller Area Network (B-CAN) and Fast Controller Area Network (F-CAN)

Diagram

Circuit Diagram

Diagram

Circuit Diagram

Location

Component Location Index

Location

Component Location Index

Location

Component Location Index

Location

Component Location Index

Fuse/Relay

DTC B1026: Front Passenger's Door Lock Switch Signal Error

Fuse/Relay

DTC B1127: Driver's Door Key Cylinder Switch Signal Error

Fuse/Relay

DTC B1128: Driver's Door Lock Switch Signal Error (LOCK/UNLOCK)

Fuse/Relay

DTC B1129: Driver's Door Lock Knob Switch Signal Error (LOCK/UNLOCK)

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