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Loss of Communication DTC Cross-reference Chart
When an ECU is unable to communicate with the other ECUs on the CAN circuit, the other control units will set loss of communication DTCs.
Use this chart to find the control unit that is not communicating.
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Find the Transmitting Control Unit that is in the same row as all of the loss of communication DTCs retrieved.
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Do the input test for the transmitting control unit.
Bus Off and Internal Error Codes
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DTC type
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Related Unit
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MICU
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Gauge Control Module(Tach)
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Heater Control Unit/Climate Control Unit
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Automatic Lighting/Rain Sensor
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Immobilizer-Keyless Control Unit
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Hands Free Telephone Control Unit
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Parking and Back-up Sensor System
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BUS OFF
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B1000
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B1150
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B1200
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B2350
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B1900
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B1750
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U1280
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ECU (CPU) Error
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B1001
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B1901
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B2601
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ECU (EEPROM) Error
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B1002
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B1202
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B1202
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B2352
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B1902
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B2602
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Transmitting Control Unit
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Message
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Receiving Unit/Loss of Communication DTC
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MICU
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Gauge Control Module(Tach)
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Heater Control Unit/Climate Control Unit
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Automatic Lighting/Rain Sensor
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Immobilizer-Keyless Control Unit
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Hands Free Telephone Control Unit
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Parking and Back-up Sensor System
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MICU
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RM
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B1188
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B2357
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HLSW
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B1155
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B2355
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WIPSW
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B1156
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B2356
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MICU
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B1157
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U1282
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DOORSW
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B1159
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DRLOCKSW
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B1160
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B1905
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Gauge Control Module (Tach)
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VSP/NE
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B1011
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B1205
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U0155
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ENGTEMP
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B1206
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CDS (SRS)
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B1032
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Automatic Lighting/Rain Sensor
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AUTOLT
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B1165
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ECM
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ENG
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B1168
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VSA Modulator-Control Unit
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VSA
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B1170
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SRS Unit
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SRS
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B1187
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EPS Control Unit
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EPS
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B1183
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NOTE: In order for the MICU to verify the communication with the automatic lighting/rain sensor, after the battery terminal(s) have been disconnected, connect the automatic lighting/rain sensor 5P connector before reconnecting the battery terminal(s) and turn the ignition switch to ON (II). Since only the automatic lighting/rain sensor unit is determined equipped or unequipped by the presence of communication, when the connector is disconnected, even the equipped vehicle is determined as unequipped.
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