B1158

Factory Manual References

Factory service manual diagnostic procedure for 2011 acura rl

A L L Diagnostic Trouble Codes ( DTC )

B1005




DTC Troubleshooting: B1005

DTC B1005:

MICU Lost Communication With Relay Control Module

NOTE: If you are troubleshooting multiple DTCs, be sure to follow the instructions in B-CAN System Diagnosis Test Mode A Troubleshooting - B-CAN System Diagnosis Test Mode A.

1. Clear the DTCs with the HDS.

2. Turn the ignition switch to LOCK (0) and then back to ON (II).

3. Wait for at least 6 seconds.

4. Check for DTCs with the HDS.

Is DTC B1005 indicated?

YES -

Go to step 5.

NO -

Intermittent failure, the system is OK at this time. Check for loose or poor connections between the relay control module and driver's under-dash fuse/relay box. If the connections are good, check the battery condition Testing and Inspection and the charging system.�

5. Check for DTCs with the HDS.

Is DTC B1158 also indicated?

YES -

Do the relay control module input test Relay Control Module Input Test.�

NO -

Check for an open in the communication circuit between the MICU and the relay control module. If the circuit is OK, Faulty MICU; replace the driver's under-dash fuse/relay box Drivers Under-Dash Fuse/Relay Box (MICU) Removal/Installation. If the circuit is bad, repair the open.�

B1158




DTC Troubleshooting: B1158

DTC B1158:

Gauge Control Module Lost Communication With Relay Control Module

NOTE: If you are troubleshooting multiple DTCs, be sure to follow the instructions in B-CAN System Diagnosis Test Mode A Troubleshooting - B-CAN System Diagnosis Test Mode A.

1. Clear the DTCs with the HDS.

2. Turn the ignition switch to LOCK (0), and then back to ON (II).

3. Wait for at least 6 seconds.

4. Check for DTCs with the HDS.

Is DTC B1158 indicated?

YES -

Go to step 5.

NO -

Intermittent failure, the system is OK at this time. Check for loose or poor connections between the gauge control module and relay control module.�

5. Check for DTCs with the HDS.

Is DTC B1005 also indicated?

YES -

Do the relay control module input test Relay Control Module Input Test.�

NO -

Do the gauge control module input test Gauge Control Module Input Test.�

Supporting Diagrams & Locations

Reference material from the factory manual for this diagnostic procedure.

Diagram

A/C Leak Detection (B07-025)

Location

Accessory Power Sockets

Location

ACURALINK

Location

Adaptive Cruise Control (Acc)

Location

Audio System

Fuse/Relay

Dashboard

Fuse/Relay

Door

Fuse/Relay

B18-020: Warranty Extension: Customer Support Program For Driver's Airbag Inflator For 2013-14 ILX Hybrid And Other Listed Years And Models (Expires February 28, 2026) (B18-020)

Fuse/Relay

2011 RL: TQI Information (10-050)

Related Procedures

Procedure

A/C Refrigerant (Compressor) Oil Guide (BJA34004)

Procedure

A/C Refrigerant And Oil Type Guide (BJA1330)

Procedure

A/C Refrigerant Type Guide (BJA11220)

Procedure

A/C Refrigerant Types Guide (BJA09917 VERSION 2)

Procedure

Always Enter Campaign Number On Proof Of Correction Certificate (B13010B)

Procedure

ACURA Recommended Materials (B99-015)

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