Pinpoint Test B: The Compass Is Inaccurate

Electronic Compass

Pinpoint Tests

Pinpoint Test B: The Compass Is Inaccurate

Normal Operation

The compass display and module are integrated into the interior rear view mirror. The compass adjustment and zone variation are controlled by the MODE button on the mirror.

This pinpoint test is intended to diagnose the following:
- Incorrect compass zone setting
- Compass calibration
- Interior rear view mirror



PINPOINT TEST B: THE COMPASS IS INACCURATE

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B1 CHECK THE COMPASS ZONE ADJUSTMENT


- Carry out the compass zone adjustment procedure. Refer to Compass Zone Adjustment Compass Zone Adjustment.
- Does the compass zone set correctly?

Yes
GO to B2.

No
INSTALL a new interior rear view mirror. TEST the system for normal operation.

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B2 CALIBRATE THE COMPASS


- Carry out the compass calibration adjustment procedure. Refer to Compass Calibration Compass Calibration.
- Does the compass calibrate correctly?

Yes
GO to B3.

No
INSTALL a new interior rear view mirror. TEST the system for normal operation.

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B3 CHECK THE VEHICLE ACCURACY


- Position the vehicle and observe the compass display as follows:





- Does the vehicle heading match the display?

Yes
The compass is operating correctly.

No
INSTALL a new interior rear view mirror. TEST the system for normal operation.

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