OBD-II Diagnostic Trouble Codes

C1556-96 – Ride Height Air Pressure Sensor – Component Internal Failure (Jeep Grand Cherokee)

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C1556-14 – Ride Height Air Pressure Sensor – Circuit Short To Ground Or Open (Jeep Grand Cherokee)

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C1556-12 – Ride Height Air Pressure Sensor – Circuit Short To Battery (Jeep Grand Cherokee)

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C1543-96 – Right Rear Ride Height Level Control – Component Internal Failure (Jeep Grand Cherokee)

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C1543-13 – Right Rear Ride Height Level Control – Circuit Open (Jeep Grand Cherokee)

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C1543-12 – Right Rear Ride Height Level Control – Circuit Short To Battery (Jeep Grand Cherokee)

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C1543-11 – Right Rear Ride Height Level Control – Circuit Short To Ground (Jeep Grand Cherokee)

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C1540-96 – Left Rear Ride Height Level Control – Component Internal Failure (Jeep Grand Cherokee)

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C1540-13 – Left Rear Ride Height Level Control – Circuit Open (Jeep Grand Cherokee)

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C1540-12 – Left Rear Ride Height Level Control – Circuit Short To Battery (Jeep Grand Cherokee)

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