CAN COMMUNICATION-RELATED DIAGNOSIS CODE (U CODE) TABLE


Code No.
 Diagnostic item
 Output ECU
 Action
U1073
 Bus Off
 Engine-ECU <3000-M/T, 3200>, Engine-A/T-ECU <3000-A/T, 3800>, A/T-ECU <3200-A/T>, SRS-ECU, Immobilizer-ECU <3200>, Combination meter, CAN converter-ECU, Transfer-ECU
 CAN main bus line diagnostics
U1100*1,*3
 Engine-ECU time-out (related to engine)
 Combination meter, A/T-ECU <3200-A/T>, Transfer-ECU
U1101*2,*3
 A/T-ECU time-out (related to automatic transmission) <A/T>
 Engine-ECU <3200>, Combination meter, Transfer-ECU
U1102*3
 ABS-ECU time-out <Vehicles without ASTC> or ASTC-ECU time-out <Vehicles with ASTC>
 Engine-ECU <3000-M/T, 3200>, Engine-A/T-ECU <3000-A/T, 3800>, A/T-ECU <3200-A/T>, Transfer-ECU
U1108*3
 Combination meter time-out
 Engine-A/T-ECU <3000-A/T, 3800>, Engine-ECU <3000-M/T, 3200>, CAN converter-ECU, Transfer-ECU
U1109*3
 ETACS-ECU time-out
 Engine-ECU <3200>, Combination meter, CAN converter-ECU
U1111*3
 Centre display time-out
 Engine-ECU <3200>
U1112*3
 SRS-ECU time-out
 Combination meter
U1117*3
 Immobilizer-ECU time-out
 Engine-ECU <3200>
U1120
 Engine CAN information error
 Transfer-ECU
 Diagnose CAN main bus lines and confirm input signals.
U1121
 T/M CAN information error
U1206
 Communication standby command the flag malfunction.
 Combination meter
10
 Bus off
 Multi centre display, ETACS-ECU
 CAN main bus line diagnostics
11*3
 Engine CAN Timeout
 Multi centre display
12*3
 Engine-A/T-ECU time-out (related to A/T)
 ETACS-ECU
14*3
 Meter time-out
 Multi centre display, ETACS-ECU
15*3
 Display time-out
 ETACS-ECU
19*3
 ETACS CAN Timeout
 Multi centre display
21
 Meter (CAN message)
 Multi centre display
 Diagnose CAN main bus lines and confirm input signals.
25
 CAN converter-ECU time-out
 ETACS-ECU
 CAN main bus line diagnostics
34
 CAN communication error
 ASTC-ECU
 CAN main bus line diagnosis
35
 Engine system fault
 Diagnose CAN main bus lines and confirm input signals.
36*3
 Engine-ECU communication error
 CAN main bus line diagnosis
37
 A/T system fault
 Diagnose CAN main bus lines and confirm input signals.
38*3
 Engine-A/T-ECU communication error
 CAN main bus line diagnosis
67*3
 Steering wheel sensor communication line error
74*3
 G and yaw rate sensor communication line fault
note
  • *1: For 2800-vehicles, diagnosis code No. U1100 does not mean that there is a problem.
  • *2: For M/T-vehicles, diagnosis code No. U1101 does not mean that there is a problem.
  • *3: When the diagnosis codes relating to the CAN communication error are set, make sure of the vehicle equipment. This is not abnormal.