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DTC - Diagnostic Trouble Codes information

P0653

Powertrain Codes

P0653 - HYUNDAI - Sensor Reference Voltage B Circuit High

Possible Causes

- Shorted sensor - Shorted sensor circuit - Failed ECM

When Detected

The ECM has detected an out of voltage range on the 5 volt reference circuit B

Description

These 5-volt reference circuits are independent of each other outside the PCM, but are bussed together inside the Engine Control Module (ECM). Therefore a circuit condition on one sensor 5-volt reference circuit may affect the other sensor 5-volt reference circuits. The ECM monitors the voltage on the 5-volt reference circuit.