B1002

Factory Manual References

Factory service manual diagnostic procedure for 2011 acura mdx

A L L Diagnostic Trouble Codes ( DTC )

B1001




DTC Troubleshooting: B1001, B1002

DTC B1001:

MICU Internal Error (CPU error)

DTC B1002:

MICU Internal Error (EEPROM error)

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 B1001 and/or B1002 indicated?

YES -

Faulty MICU, replace the under-dash fuse/relay box.�

NO -

Intermittent failure, the system is OK at this time.�

B1002




DTC Troubleshooting: B1001, B1002

DTC B1001:

MICU Internal Error (CPU error)

DTC B1002:

MICU Internal Error (EEPROM error)

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 B1001 and/or B1002 indicated?

YES -

Faulty MICU, replace the under-dash fuse/relay box.�

NO -

Intermittent failure, the system is OK at this time.�

Supporting Diagrams & Locations

Reference material from the factory manual for this diagnostic procedure.

Diagram

A/C Leak Detection (B07-025)

Location

Ac Power Outlet

Location

Accessory Power Sockets

Location

Active Damper System

Location

ACURALINK

Fuse/Relay

Battery Is Dead, Or A/C Cools Poorly (11-031)

Fuse/Relay

Acc/CMBS Indicator Is On With DTC 30 (14-022)

Fuse/Relay

2011 MDX: TQI And New Model Service Information (10-023)

Fuse/Relay

Acc/CMBS Indicator Is On With DTC 30 (14-022)

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

Drive Belt Squeaks (10-035)

Procedure

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

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