Honda Cars 2007-2008

3.0L V6 VIN - Auto 1

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3.0L V6 VIN - Auto

Trouble Code: B1000



Communication Bus Line Error

Possible Causes:



Intermittent failure in the communication bus line. Check for loose or poor connections, or worn/shorted wires
 
Poor battery condition and/or charging system
 
Short to power in B-CAN wire
 
Faulty MICU, replace the under-dash fuse/relay box
 

Trouble Code: B1001



Multiplex Integrated Control Unit (MICU) Internal Error

Possible Causes:



Faulty battery or charging system
 
PCM or F-CAN loss of communication errors
 
Poor connections or loose pins at all connectors related to the circuit.
 
MICU Internal (CPU)
 
PCM
 

Trouble Code: B1002



Multiplex Integrated Control Unit (MICU) Internal Error

Possible Causes:



Faulty battery or charging system
 
PCM or F-CAN loss of communication errors
 
Poor connections or loose pins at all connectors related to the circuit.
 
''Open'' and/or ''short'' related to the circuits.
 

Trouble Code: B1005



MICU Lost Communication with Relay Control Module (RM Message)

Possible Causes:



Faulty battery or charging system
 
PCM or F-CAN poor connections or loose pins at connectors
 
B-CAN system poor connections or loose pins at connectors
 
Faulty relay control module
 

Trouble Code: B1006



MICU Lost Communication with Door Multiplex Control Unit (Door Lock Switch Message)

Possible Causes:



Faulty battery or charging system
 
"Open" or "Short" to power or ground in the communication circuit between the MICU and the door multiplex control unit
 
Faulty door multiplex control unit
 
Faulty MICU.
 

Trouble Code: B1007



MICU Lost Communication with Combination Switch Control Unit (HLSW Message)

Possible Causes:



Loose or poor connections between the MICU and the Combination Switch Control Unit.
 
Blown fuse in the main under-hood fuse box
 
Blown fuse in the under-dash fuse/relay box
 
Faulty MICU
 
Faulty Headlamp Switch (Combination Switch Control Unit).
 

Trouble Code: B1008



MICU Lost Communication With Gauge Control Module (A/T Message)

Possible Causes:



Faulty battery or charging system
 
Loose or poor connections between the MICU and gauge control module
 
"Open" in the communication circuit between the MICU and the gauge control module
 
Faulty MICU
 
Faulty gauge control module
 

Trouble Code: B1009



MICU Lost Communication With Combination Switch Control Unit (Wiper/Washer Switch Message)

Possible Causes:



Loose or poor connections
 
Blown fuse
 
Faulty battery and/or charging system
 
Perform the combination switch control unit input test
 
Perform the MICU Input Test
 
"Open" or "Short" circuit
 
Faulty combination switch control unit
 
Faulty Multiplex Integrated Control System (MICU)
 

Trouble Code: B1010



MICU Lost Communication with Door Multiplex Control Unit (Panic Message)

Possible Causes:



Faulty battery condition and/or charging system
 
Loose or poor connection at door multiplex connector, and at under-dash fuse/relay box connector
 
Perform the Door Multiplex Control Unit Input Test
 
"Open" circuit between the MICU and the door multiplex control unit
 
Faulty MICU
 

Trouble Code: B1026



Passenger's Door Lock Switch Signal Error

Possible Causes:



"Short" in wires at front passenger's door lock switch
 
Faulty MICU
 
Faulty front passenger's door lock switch
 

Trouble Code: B1027



Trunk Key Cylinder Switch Signal Error

Possible Causes:



"Open" circuit between the MICU and trunk key cylinder switch
 
Faulty trunk key cylinder switch
 
Faulty MICU
 

Trouble Code: B1050



Communication Bus Line Error

Possible Causes:



Loose or poor connections at the MICU and B-CAN connected units
 
Faulty relay control module
 

Trouble Code: B1055



Relay Control Module Lost Communication with MICU (MICU Message)

Possible Causes:



Loose or poor connections between the Relay Control Module and the MICU
 
Blown fuse in the main under-hood fuse box
 
Blown fuse in the under-dash fuse/relay box
 
"Open" or "Short" to ground at driver's MPCS unit
 
"Open" or "Short" to ground at driver's MICU
 
"Open" or "Short" to ground at driver's Relay Control Module
 
Faulty Relay Control Module
 
Faulty MICU
 

Trouble Code: B1056



Relay Control Module Lost Communication with MICU (ALARM Message)

Possible Causes:



Loose or poor connections between the Relay Control Module and the MICU
 
Blown fuse in the main under-hood fuse box
 
Blown fuse in the under-dash fuse/relay box
 
"Open" or "Short" to ground at the Relay Control Module
 
"Open" or "Short" to ground at driver's MICU
 
Faulty Relay Control Module
 
Faulty MICU
 

Trouble Code: B1057



Relay Control Module Lost Communication with MICU (DOORSW Message)

Possible Causes:



Loose or poor connections between the Relay Control Module and the driver's MICU
 
Blown fuse in the main under-hood fuse box
 
Blown fuse in the under-dash fuse/relay box
 
"Open" or "Short" to ground at the Relay Control Module
 
"Open" or "Short" to ground at driver's MICU
 
Faulty Relau Control Module
 
Faulty MICU
 

Trouble Code: B1058



Relay Control Module lost communication with Door Multiplex Control Unit (door lock switch message)

Possible Causes:



Perform relay control module input test
 
Blown fuse
 
Poor ground
 
"Open" or "Short" to ground
 
Faulty relay control module
 
Faulty door multiplex control unit
 

Trouble Code: B1059



Relay Control Module lost communication with Door Multiplex Control Unit (panic message)

Possible Causes:



Perform relay control module input test
 
Loose or poor connections
 
"Open" or "Short" circuit
 
Faulty ground
 
Faulty under-hood fuse/relay box
 

Trouble Code: B1060



Relay Control Module Lost Communication with Gauge Control Module (VPS/NE Message)

Possible Causes:

If DTCs B1011, B1032, B1060, B1061, B1205, B1206, B1207, B1906, B1956, B2157, and B2160 are indicated perform the Gauge Control Module input test.



Loose or poor connections between the Relay Control Module and the Gauge Control Module
 
Blown fuse in the main under-hood fuse box
 
Blown fuse in the under-dash fuse/relay box
 
"Open" or "Short" to ground at Relay Control Module
 
"Open" or "Short" to ground at Gauge Control Module
 
Faulty Relay Control Module
 
Faulty Gauge Control Module
 

Trouble Code: B1061



Relay Control Module Lost Communication with Gauge Control Module (A/T Message)

Possible Causes:



If DTCs B1011, B1032, B1060, B1061, B1205, B1206, B1207, B1906, B1956, B2157, and B2160 are indicated perform the gauge control module input test
 
Loose or poor connections between the Relay Control Module and the Gauge Control Module
 
Blown fuse in the main under-hood fuse box
 
Blown fuse in the under-dash fuse/relay box
 
"Open" or "Short" to ground at Relay Control Module
 
"Open" or "Short" to ground at Gauge Control Module
 
Faulty Relay Control Module
 
Faulty Gauge Control Module
 

Trouble Code: B1062



Relay Control Module Lost Communication with Combination Switch Control Unit (HLSW Message)

Possible Causes:



If DTCs B1007, B1062, B1063, B1155, B1156, B1957, B1958, and B2969 all indicated perform the combination switch control unit input test
 
Loose or poor connections between the Relay Control module and the Combination Switch Control unit
 
Blown fuse in the main under-hood fuse box
 
Blown fuse in the under-dash fuse/relay box
 
"Open" or "Short" to ground at the Relay Control Module
 
"Open" or "Short" to ground at Combination Switch Control unit
 
Fauty Relay Control Module
 
Faulty Combination Switch Control unit
 

Trouble Code: B1063



Relay Control Module Lost Communication with Combination Switch Control Unit (WIPSW Message)

Possible Causes:

If DTCs B1007, B1062, B1063, B1155, B1156, B1957, B1958, and B2969 all indicated perform the combination switch control unit input test.



Loose or poor connections between the Relay Control Unit and the Combination Control Unit.
 
Blown fuse in the main under-hood fuse box
 
Blown fuse in the under-dash fuse/relay box
 
"Open" or "Short" to ground at the Relay Control Unit
 
"Open" or "Short" to ground at the Combination Control Unit.
 
Faulty Relay Control Unit
 
Faulty Combination Control Unit
 

Trouble Code: B1075



Headlight Switch Back-up Circuit Malfunction

Possible Causes:



Short in the WHT wire between the Combination Switch Control Unit and the Relay Control Module (H/L BACK-UP line) or between the Combination Switch Control Unit and the MICU
 
Open GND circuit
 
Blown fuse in the main under-hood fuse box
 
Blown fuse in the under-dash fuse/relay box
 
"Open" or "Short" to ground at the Relay Control Unit
 
"Open" or "Short" to ground at the Combination Control Unit.
 
Faulty Relay Control Unit
 
Faulty Combination Control Unit
 

Trouble Code: B1076



Windshield Wiper Switch Back-up Circuit Malfunction

Possible Causes:



Short in the wire between the Combination Switch Control Unit and the Relay Control Module (WIPER BACK-UP line)
 
Blown fuse in the main under-hood fuse box
 
Blown fuse in the under-dash fuse/relay box
 
"Open" or "Short" to ground at the Relay Control Unit
 
"Open" or "Short" to ground at the Combination Control Unit.
 
Faulty under-hood fuse/relay box
 
Faulty Relay Control Unit
 
Faulty Combination Control Unit
 

Trouble Code: B1077



Windshield Wiper Auto Switch Circuit Malfunction

Possible Causes:



Blown fuses in the under-dash fuse/relay box.
 
Loose or poor connections
 
Open circuit between the windshield wiper motor and the under-hood fuse/relay box
 
Faulty wiper motor
 
Faulty Relay Control Module, replace the under-hood fuse/relay box
 

Trouble Code: B1078



Daytime Running Lights System Error

Possible Causes:



Blown fuse No. 1 (10 A) and No. 2 (10 A) in the under-hood fuse/relay box
 
Faulty bulbs
 
Poor continuity between daytime running light 2P connector terminal No. 2 and under-hood fuse/relay box connector G (4P) terminals No. 1 and No. 2 respectively.
 
Open in the BLK wire or poor ground (G201-right side, G301-left side)
 
Faulty Relay Control Module
 

Trouble Code: B1079



Daytime Running Lights Malfunction

Possible Causes:



Faulty fuse and/or bulb
 
Loose or poor connections
 
Poor ground
 
"Open" or "Short"
 
Faulty daytime running light control unit
 
Faulty relay control module
 

Trouble Code: B1080



Power Supply Circuit (IG1 Line) Input Error for Relay Control Module and MICU

Possible Causes:



Blown fuse in the under-dash fuse/relay box
 
Loose or poor connections between the under-hood fuse/relay box and the under-dash fuse/relay box
 
"Open" voltage circuit between the under-hood fuse/relay box and the under-dash fuse/relay box
 
Faulty grounds
 
Faulty relay control module; replace the under-hood fuse/relay box
 

Trouble Code: B1100



Communication Circuit Error (BUS Off)

Possible Causes:



Loose or poor connections at the door multiplex control unit, and the under-dash fuse/relay box
 
Faulty door multiplex control unit
 

Trouble Code: B1102



Door Multiplex Control Unit Internal Error

Possible Causes:



Loose or poor connections
 
Faulty battery and/or charging system
 
Faulty door multiplex control unit; replace the power window master switch
 

Trouble Code: B1125



Driver's Power Window Motor A Pulse Malfunction

Possible Causes:



Loose or poor connections between the door multiplex control unit and the driver's power window motor
 
"Open" or "Short" between the door multiplex control unit and the driver's power window motor
 
Faulty driver's power window motor
 
Faulty power window master switch
 

Trouble Code: B1126



Driver's Power Window Motor B Pulse Malfunction

Possible Causes:



Loose or poor connections between the door multiplex control unit and the driver's power window motor
 
"Open" or "Short" between the door multiplex control unit and the driver's power window motor
 
Faulty driver's power window motor
 
Faulty power window master switch
 

Trouble Code: B1127



Driver's Door Key Cylinder Switch Malfunction

Possible Causes:



"Short" between the LOCK and UNLOCK wires
 
Faulty drvers door key cylinder switch
 
Faulty power window master switch
 
Faulty driver's door latch
 

Trouble Code: B1128



Driver's Door Lock Switch Signal Malfunction (Lock/Unlock)

Possible Causes:



Loose or poor connections
 
Faulty power window master switch
 

Trouble Code: B1129



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

Possible Causes:



Loose or poor connections at the driver's door lock knob switch
 
"Short" between the LOCK and UNLOCK wires
 
Faulty power window master switch
 
Faulty driver's door latch
 

Trouble Code: B1140



Driver's Power Window Position Detect Circuit Malfunction

Possible Causes:



Reset the power window control unit
 
Faulty driver's power window motor
 
Faulty door multiplex control unit; replace the power window master switch
 

Trouble Code: B1150



Communication Bus Line Error

Possible Causes:



Loose or poor connections at the MICU and B-CAN connected units
 
Faulty gauge control module
 

Trouble Code: B1152



Gauge Control Module Internal (EEPROM) Error

Possible Causes:



Faulty Gauge Control Module
 

Trouble Code: B1155



Gauge Control Module Lost Communication with Combination Switch Control Unit (HLSW Message)

Possible Causes:



Loose or poor connections between the Gauge Control Module and the Combination Switch Control Unit
 
Blown fuse in the main under-hood fuse box
 
Blown fuse in the under-dash fuse/relay box
 
"Open" or "Short" to ground at the Gauge Control Module
 
"Open" or "Short" to ground at the Combination Control Unit
 
Faulty Combination Comtrol Unit
 
Faulty Gauge Control Module
 

Trouble Code: B1156



Gauge Control Module Lost Communication with Combination Switch Control Unit (WIPSW Message)

Possible Causes:



Loose or poor connections between the Gauge Control Module and the Combination Switch Control Unit
 
Blown fuse in the main under-hood fuse box
 
Blown fuse in the under-dash fuse/relay box
 
"Open" or "Short" to ground at the Gauge Control Module
 
"Open" or "Short" to ground at the Combination Control Unit.
 
Faulty Gauge Control Module
 
Faulty Combination Control Unit
 

Trouble Code: B1157



Gauge Control Module Lost Communication with MICU (MICU Message)

Possible Causes:



Loose or poor connections between the Gauge Control Module and the MICU
 
Blown fuse in the main under-hood fuse box
 
Blown fuse in the under-dash fuse/relay box
 
"Open" or "Short" to ground at the Gauge Control Module
 
"Open" or "Short" to ground at the MICU
 
Faulty Gauge Control Module
 
Faulty MICU
 

 
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