Inspection Procedure 5

INSPECTION PROCEDURE 5:The advance Direction is Deviated.

Ambient Air Temperature Meter Electronic composs circuit.

CIRCUIT OPERATION
The vehicle direction is displayed by the output of the geomagnetic sensor built into the ambient air temperature meter and electronic compass.

TECHNICAL DESCRIPTION (COMMENT)
The vehicle magnetism tends to be disturbed particularly at such places as tunnel railway crossing area along railway elevated road urban area crowded with high-storied buildings area above subway etc. If disturbed the driving direction marker will fluctuate.

TROUBLESHOOTING HINTS
The calibration of the compass or compass variance failed.

DIAGNOSIS
The calibration of the compass or compass variance.