2
50
DTC P0562 ECM Output Supply Voltage Low (Non-Scan Diagnostics)
Step
Action
Yes
No
1
1. Disconnect and reconnect ECM connector.
2. Install Service Power Supply Harness (Part No. 847252).
3. Clear codes.
4. Disconnect and reconnect service power supply connector.
5. Does DTC return?
Go to step 2.
Problem corrected.
2
1. Disconnect service power supply connector.
2. Back probe terminal J11 (Red wire) of ECM connector.
3. Connect terminal J11 back probe to red meter test lead on DVOM.
4. Back probe terminal J9 (Black wire) of ECM connector.
5. Connect terminal J9 back probe to black meter test lead on DVOM.
6. Set DVOM to read volts DC.
7. Observe voltage on DVOM while cranking engine.
8. Is reading 12-16 volts DC?
System OK.
Go to step 3.
3
1. Disconnect fuel pump module, fuel injector, and throttle actuator motor
connectors.
2. Observe voltage on DVOM while cranking engine.
3. Is reading 12-16 volts DC?
Go to step 4.
Go to step 7.
4
1. Connect fuel pump module connector.
2. Observe voltage on DVOM while cranking engine.
3. Is reading 12-16 volts DC?
Go to step 5.
Replace fuel
pump module.
Continued...
ECM Connector
Stator Power Connector (Stator Side)
Not for
Reproduction
Summary of Contents for Vanguard EFI 380000
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Page 68: ...3 64 MODEL 380000 EFI ELECTRICAL SCHEMATIC N o t f o r R e p r o d u c t i o n ...
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