smartcarofamerica.com/threads/smart-fortwo-451-abs-light-problem-c1131-c1130.158090/

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Forum thread: Smart ForTwo (451) ABS Light problem C1131 & C1130 | Smart Car of America Forum

smartcarofamerica.com/threads/smart-fortwo-451-abs-light-problem-c1131-c1130.158090/ · p. 1 · Applies to: 451

Source: smartcarofamerica.com Topic: ABS light and traction control Models discussed: 451 Solution status: unclear

Problem: Smart ForTwo (451) experiencing ABS light illumination with error codes C1131 and C1130, occurring during wet weather conditions (rain, mud, sand) with jerking and loss of power. ABS sensor, half-axle, and hub were previously replaced but issue recurred.

Solution: unresolved

Key facts: - Error codes C1131 (Outside Air Temp Sensor Short Circuit) and C1130 (Ambient Air Temperature Sensor Failure) identified as potential culprits - Air temperature sensor located on left side of crash bar behind front bumper should be inspected for damaged plug and wires - Symptoms worsen in wet conditions (rain, mud, sand) with jerking, power loss, and metal-on-metal noise reported - One responder notes similar ABS/Traction Control light issues that reset after restart without related codes, suggesting codes may be coincidental - Brake pads replacement by user reportedly triggered similar ABS issues in another car, indicating potential sensor sensitivity to brake work