Pinpoint Test Ah: The Compass Is Inaccurate

AH1 CHECK THE COMPASS ZONE SETTING AND CALIBRATION 

• Set the Zone Refer to COMPASS ZONE ADJUSTMENT .
• Calibrate the compass. Refer to COMPASS CALIBRATION .
• Does the compass calibrate correctly? 

Yes 

GO to AH3

No 

GO to AH2

AH2 DEMAGNETIZE THE VEHICLE 

• Demagnetize the vehicle. Refer to VEHICLE DEMAGNETIZING .
• Calibrate the compass. Refer to COMPASS CALIBRATION .
• Does the compass calibrate correctly? 

Yes 

GO to AH3

No 

INSTALL a new compass sensor module. SET the zone. REFER to COMPASS ZONE ADJUSTMENT . CALIBRATE the compass. REFER to COMPASS CALIBRATION . TEST the system for normal operation.

AH3 CHECK COMPASS ACCURACY 

• Position the vehicle and observe the compass display as follows:
  COMPASS DISPLAY
  
  

  Direction	Compass Display
  North	N
  Northeast	NE
  East	E
  Southeast	SE
  South	S
  Southwest	SW
  West	W
  Northwest	NW

• Does the compass display as indicated? 

Yes 

Compass is OK.

No 

INSTALL a new compass sensor module. SET the zone. REFER to COMPASS ZONE ADJUSTMENT . CALIBRATE the compass. REFER to COMPASS CALIBRATION . TEST the system for normal operation