DTC P0562 / P0563
Precautions: General safety (00)
DTC Detecting Condition and Trouble Area
| DTC detecting condition | Trouble area |
|---|---|
|
P0562: System Voltage Low Measured voltage of power supply circuit is lower than specified value. (1 D/C detection logic but MIL does not light up) |
•ECM power supply circuit
•ECM ground circuit •Charging system •ECM |
|
P0563: System Voltage High Measured voltage of power supply circuit is higher than specified value. (1 D/C detection logic but MIL does not light up) |
Circuit Diagram
| [A]: | ECM connector (View: [a]) | B2: | ECM power supply circuit | 1. | ECM |
| A1: | Main relay power supply circuit (coil side) | B3: | ECM power supply circuit | 2. | Main relay |
| A2: | Main relay power supply circuit (switch side) | C1: | ECM ground circuit | 3. | “FI” fuse (30 A) |
| A3: | Main relay drive circuit | C2: | ECM ground circuit | ||
| B1: | ECM power supply circuit | C3: | ECM ground circuit |
DTC Troubleshooting
| Step | Action | Yes | No |
|---|---|---|---|
| 1 |
Was “Engine and Emission Control System Check” performed?
|
Go to Step 2.
|
|
| 2 |
ECM power supply circuit and ground circuit check
1)When ignition is “OFF”, disconnect “E01” connector from ECM and “FI” fuse (30 A).
2)Check for proper terminal connection to “E01” connector.
3)If connections are OK, check that ECM power supply circuit and ground circuit (“B1”, “B2”, “B3”, “C1”, “C2” and “C3”) is as follows.
•Resistance of “B1”, “B2”, “B3”, “C1”, “C2” and “C3” circuits: less than 1 Ω
•Resistance between each of “B1”, “B2”, “B3”, “C1”, “C2” and “C3” circuits and ground: infinity •Resistance between “B1” circuit terminal and other terminal at ECM connector: infinity •Resistance between “B2” circuit terminal and other terminal at ECM connector: infinity •Resistance between “B3” circuit terminal and other terminal at ECM connector: infinity •Resistance between “C1” circuit terminal and other terminal at ECM connector: infinity •Resistance between “C2” circuit terminal and other terminal at ECM connector: infinity •Resistance between “C3” circuit terminal and other terminal at ECM connector: infinity •Voltage of “B1”, “B2”, “B3”, “C1”, “C2” and “C3” circuits: approx. 0 V (When ignition is “ON”) Is check result OK?
|
Go to Step 3.
|
Repair or replace defective wire harness.
|
| 3 |
Charging system check
1)Check that charging system is working properly.
Is check result OK?
|
Go to Step 4.
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Repair or replace defective part(s).
|
| 4 |
DTC check
1)Clear DTC.
2)Set ignition “OFF”.
3)Check DTC.
Is DTC P0562 or P0563 still detected?
|
Replace ECM and recheck DTC.
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End.
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