P1805
PPowertrainClutch Interlock Safety Switch Circuit Fault
What does this code mean?
Severity : MediumP1805 is a manufacturer specific code. In the definition used here, it reports a fault in the clutch interlock safety switch circuit, which only allows starting with the clutch pedal pressed. The exact meaning depends on the manufacturer. This switch is sometimes also used by cruise control and stop and start.
Symptoms
- No start or intermittent starting.
- Check engine light on.
- Cruise control not working.
- Stop and start function disabled.
Possible causes
- Misadjusted or faulty clutch switch.
- Unplugged or corroded switch connector.
- Open or shorted wiring.
- Damaged pedal bracket.
- Blown circuit fuse.
Diagnosis and repair
- Confirm what this code means for your make.
- Watch the switch status in live data while pressing the pedal.
- Inspect the connector, wiring and fuse.
- Adjust or replace the clutch switch.
- Clear the code and check starting and cruise control.
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Code
P1805
Category
Powertrain
Prefix
P
Standard
OBD-II / SAE J2012