Codes de défaut couverts
57-43, 58-43
Pressure transducers are dynamically assigned based on their relative values within PCM software. For this reason the pressure transducers and harnesses are interchangeable. Each pressure transducer requires 3 wires: Ground (BLK), Power (+5V DC, RED), and Signal (GRN). The ratio of voltage between power and signal wires is converted into a pressure value. The pressure transducer is capable of sending a value to PCM via sensor wire if it is not working correctly. A base code of 57 or 58 is determined based on which PCM connection has the issue, P1 or P2. When a DC V value of 4.84-4.95 is returned to PCM it will trigger 57-43 or 58-43 fault. The most likely cause of this is a failed transducer part. Switch the harnesses from P1 and P2 to see if the malfunction follows the transducer. If so, follow procedure to replace failed pressure transducer. Trace wires from PCM board connection to ensure correct transducer is being replaced.
Pages de dépannage ACHPVSR454-02SM.