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HOMESERVICE MANUALSNISSAN-DATSUN2014NV3500 HD S, VAN CARGOREPAIR AND DIAGNOSISHEATING, VENTILATION & A/C (HVAC)HVAC CONTROL SYSTEMSHEATER & AIR CONDITIONING CONTROL SYSTEM (AUTOMATIC AIR CONDITIONER)DTC/CIRCUIT DIAGNOSISDTC B257B, B257C: AMBIENT SENSORDTC LOGICDTC DETECTION LOGIC
2014 Nissan-Datsun NV3500 HD S, Van Cargo

DTC Detection Logic

2014 Nissan-Datsun NV3500 HD S, Van CargoSECTION DTC Detection Logic
NOTE:
  • If DTC is displayed along with DTC U1000 or U1010, first diagnose the DTC U1000 or U1010. Refer to "DTC LOGIC " or "DTC LOGIC ".
  • If there is an open circuit in the ambient sensor, the front air control registers extreme cold [-30°C (-22°F)] and adjusts the temperature control warmer.
DTC Items (CONSULT screen terms) Diagnostic item is detected when... Possible cause
B257B AMB TEMP SEN (SHORT) Detected temperature at ambient sensor 55°C (131°F) or more
  • Ambient sensor
  • Front air control
  • Harness and connector (Ambient sensor circuit is open, or there is a short in the circuit)
B257C AMB TEMP SEN (OPEN) Detected temperature at ambient sensor -30°C (-22°F) or less
RENDER: 1.0x

NO RELATED

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