B1001

Factory Manual References

Factory service manual diagnostic procedure for 2009 acura rl

A L L Diagnostic Trouble Codes ( DTC )

B1001




DTC Troubleshooting: B1001, B1002

DTC B1001: MICU Internal (CPU) Error

DTC B1002: MICU Internal (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 driver's under-dash fuse/relay box.

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


B1002




DTC Troubleshooting: B1001, B1002

DTC B1001: MICU Internal (CPU) Error

DTC B1002: MICU Internal (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 driver's 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

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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