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SL500 (1998-1999)

DIAGNOSTIC TROUBLE CODE LIST

DTC Diagnostic
B1226 In-Vehicle Temperature Sensor
B1227 Outside Temperature Sensor
See DTC B1422: A/C CONTROL SERIAL INTERFACE for test procedures.
B1228 Left Heater Core Temperature Sensor
B1230 Evaporator Temperature Sensor
B1231 Engine Coolant Temperature Sensor
See DTC B1422: A/C CONTROL SERIAL INTERFACE for test procedures.
B1232 Refrigerant Pressure Sensor
B1233 Refrigerant Temperature Sensor
B1241 Refrigerant Fill
B1416 Coolant Circulation Pump
B1417 Automatic Monovalve
B1419 Electromagnetic Clutch
B1420 Idle Speed Increase
B1421 Auxiliary Fan Control Module
B1422 A/C Control Serial Interface
B1423 Switchover Valve Block
B1452 Left Outlet Potentiometer Feedback Circuit
B1453 Left Outlet Potentiometer
B1454 Center Outlet Potentiometer
  Right Outlet Potentiometer
See RIGHT OUTLET POTENTIOMETER VOLTAGE CIRCUIT under TESTING.
B1457 Center Outlet Potentiometer Feedback Circuit
B1458 Right Outlet Potentiometer Feedback Circuit
B1459 A/C Control Serial Interface