Powertrain
generic / SAE
P05C7
Economy Mode Switch Circuit Open
The economy-mode (ECO) switch input has an open circuit. The ECU cannot read whether the driver requested fuel-saving mode (changes throttle map, transmission shift points, climate strategy).
SystemPowertrain
Typegeneric / SAE
GroupP0
Range / number5 / C7
Possible causes
- Open in switch or harness high
- Pin pushed back out of connector body low
- Cracked solder joint inside the module or sensor low
Inspection / repair
- Difficulty: easy
- DIY: possible
- Estimated cost: 60–250 €
- Estimated time: 0.3–1.2 h
- Component: economy mode switch
- MIL / check engine light
Sources
References
sae:J2012