B1002

Factory Manual References

Factory service manual diagnostic procedure for 2008 acura tsx

A L L Diagnostic Trouble Codes ( DTC )

B1001

DTC B1001, B1002: Multiplex Integrated Control Unit (MICU) Internal Error

1. Clear the DTCs using the HDS.
2. Cycle the ignition switch to OFF, and then back ON.
3. Operate the door lock (LOCK/UNLOCK).
4. Check for DTCs using the HDS.

Is DTC B1001 or B1002 indicated?

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

NO - Intermittent failure, the MICU is OK at this time. Check for loose or poor connections. If the connections are good, check the battery condition and the charging system.

B1002

DTC B1001, B1002: Multiplex Integrated Control Unit (MICU) Internal Error

1. Clear the DTCs using the HDS.
2. Cycle the ignition switch to OFF, and then back ON.
3. Operate the door lock (LOCK/UNLOCK).
4. Check for DTCs using the HDS.

Is DTC B1001 or B1002 indicated?

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

NO - Intermittent failure, the MICU is OK at this time. Check for loose or poor connections. If the connections are good, check the battery condition and the charging system.

Supporting Diagrams & Locations

Reference material from the factory manual for this diagnostic procedure.

Diagram

A/C Leak Detection (B07-025)

Diagram

A/C Leak Detection (B07-025)

Location

ACURA

Location

AUDI

Location

BENTLEY

Location

BMW

Fuse/Relay

AUDI

Fuse/Relay

BMW

Fuse/Relay

Buzzers, Relays & Timers

Fuse/Relay

Check Out The Latest Word On A/T Flushing (B08010A)

Related Procedures

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Procedure

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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

Can't Turn Off The VSA? Check If The TPMS Indicator Is On (B08040C)

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