DTC U2001
Precautions: General safety (00)
DTC Detecting Condition and Trouble Area
| DTC detecting condition | Trouble area |
|---|---|
|
U2001: LIN Lost Communication With Generator Received data from generator via LIN is faulty. (1 D/C detection logic but MIL does not light up) |
•Generator LIN communication circuit
•Regulator (stator assembly) •ECM |
Circuit Diagram
| [A]: | ECM connector (View: [a]) | 1. | Generator | 3. | ECM |
| A1: | Generator LIN communication circuit | 2. | Regulator | 4. | LIN driver |
DTC Confirmation Procedure
NOTE:
Check that the following condition is met in this “DTC Confirmation Procedure”.
•9.5 V < battery voltage < 16.5 V
1)Set ignition “ON”.
DTC Troubleshooting
| Step | Action | Yes | No |
|---|---|---|---|
| 1 |
Was “Engine and Emission Control System Check” performed?
|
Go to Step 2.
|
|
| 2 |
Generator LIN communication circuit check
1)With ignition “OFF”, disconnect “C01” and “E01” connectors of ECM and generator connector.
2)Check for proper terminal connection to “C01” and “E01” connectors and generator connector.
3)If connections are OK, check the following points.
•Resistance of “A1” circuit: less than 1 Ω
•Resistance between “A1” circuit and ground: infinity •Resistance between “A1” circuit terminal and other terminal at ECM connector: infinity •Voltage of “A1” circuit: approx. 0 V (When ignition is “ON”) Is check result OK?
|
Go to Step 3.
|
Repair or replace defective wire harness.
|
| 3 |
DTC recheck
1)Replace stator assembly.
2)Perform “DTC Confirmation Procedure” and check DTC.
Is DTC U2001 still detected?
|
Replace ECM and recheck DTC.
|
End.
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