P1127high severityPowertrain
ETCS Actuator Power Source Circuit
on 2001 Toyota MR2 2.2L I4 · FWD
What this code means
The power source voltage for the ETCS actuator is abnormal.
Symptoms
- CEL
- Reduced power
- Throttle unresponsive
- Limp mode
Common causes
- Low battery voltage
- Poor ground
- Damaged wiring
- Blown ETCS fuse
Diagnostic steps
- Check battery voltage
- Test ground connections
- Inspect fuse
- Check wiring
Repair notes
Repair power supply or replace fuse.
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P0010
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P0014
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P0015
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