P1486

P1486 - The scan tool indicates Diagnostic Trouble Code (DTC) P1486 - Range/Performance Problem in Thermostat.

NOTE: If the DTCs listed below are stored at the same time as DTC P1486, troubleshoot those DTCs first, then recheck for P1486.

P0107, P0108, P1128, P1129 - MAP Sensor
P1106, P1107, P1108 - Barometric Pressure Circuit
P1259, P1279 - VTEC system
P0401 - EGR Flow Insufficient
P1491 - EGR Valve Lift Insufficient
P1498 - EGR Valve Position Sensor High Voltage
P0116, P0117, P0118 - Engine Coolant Temperature Circuit
P0112, P0113 - Intake Air Temperature Circuit
P0335, P0336, P1336, P1337 - Crankshaft Position Sensor 1/2
P0300 - Random Misfire
P0301, P0302, P0303, P0304, P0305, P0306 - Cylinder 1, 2, 3, 4, 5 or 6 Misfire detected.
P0505 - Idle Control System Malfunction
P1508 - Idle Air Control Valve

DTC P1486 can set occasionally when the hood is opened.

Troubleshooting: