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DTC U1001 (No. 1001): High Speed CAN Communication (Transmission Error)
Wiring Diagram
[A]: BCM connector (viewed from harness side)
[B]: ECM connector (viewed from harness side)
[C]: Combination meter connector (viewed from
terminal side)
DTC Detecting Condition and Trouble Area
DTC detecting condition
Transmission error of communication data for
BCM is detected for longer than specified time
continuously.
DTC Confirmation Procedure
1) Connect scan tool to DLC with ignition switch turned OFF.
2) Turn ON ignition switch and clear DTC by using scan tool.
3) Start engine and run it for 1 min. or more.
4) Check DTC.
[D]: TCM connector (viewed from harness side)
1. BCM
2. Junction block assembly
• CAN communication circuit
• Combination meter
• BCM (included in junction block assembly)
• TCM
• ECM
Body Electrical Control System:
3. ECM
4. TCM (equipped with A/T)
5. Combination meter
Trouble area
10B-23
S4RS0AA204024
I4RS0AA20014-
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