Compass Displays "-"

WARNING: This page is about a different car, the 2006 Infiniti G35. However, it is still accessible from the selected car via links, so may be relevant.

CHECK FAIL-SAFE MODE
Make sure that fail-safe mode is not activated. Refer to "FAIL-SAFE SYSTEM ".

Is fail-safe mode activated?
1. YES: GO TO 3.
2. NO: GO TO 2.
CHECK DISPLAY AND A/C AUTO AMP. SELF-DIAGNOSIS
Check display and A/C auto amp. self-diagnosis. Refer to "FUNCTION CONFIRMATION PROCEDURE ".

Are all segments of display and A/C auto amp. displayed?
1. YES: INSPECTION END
2. NO: Replace display and A/C auto amp.
CHECK POWER AND GROUND CIRCUIT
Check power and ground circuit. Refer to "POWER SUPPLY AND GROUND CIRCUIT INSPECTION ".

OK or NG
1. OK: GO TO 4.
2. NG: Repair malfunctioning part.
CHECK COMPASS CIRCUIT
1. Disconnect display and A/C auto amp. connector.
2. Check continuity between compass harness connector M81 terminal 2 (L) and display and A/C auto amp. harness connector M31 terminal 6 (L).
  2 (L) - 6 (L) : Continuity should exist.
  
  Fig 1: Identifying Connector M81 Terminal 2 And Connector M31 Terminal 6
  Courtesy of NISSAN MOTOR CO., U.S.A.
3. Check continuity between compass harness connector M81 terminal 3 (R) and display and A/C auto amp. harness connector M31 terminal 7 (R).
  3 (R) - 7 (R) : Continuity should exist.
OK or NG
1. OK: GO TO 5.
2. NG: Repair harness or connector.
  
  Fig 2: Identifying Connector M81 Terminal 3 And Connector M31 Terminal 7
  Courtesy of NISSAN MOTOR CO., U.S.A.
CHECK COMPASS SIGNAL
1. Turn ignition switch OFF.
2. Connect compass connector and display and A/C auto amp. connector.
3. Turn ignition switch ON.
4. Check voltage signal between compass harness connector M81 terminal 2 (L) and ground.
  2 (L) - Ground:
  
  Fig 3: Identifying Waveform (2 (L) - Ground)
  Courtesy of NISSAN MOTOR CO., U.S.A.
  
  Fig 4: Identifying Voltage Signal Between Compass Connector M81 Terminal 2 And Ground
  Courtesy of NISSAN MOTOR CO., U.S.A.
5. Check voltage signal between compass harness connector M81 terminal 3 (R) and ground.
  3 (R) - Ground:
  
  Fig 5: Identifying Waveform (3 (R) - Ground)
  Courtesy of NISSAN MOTOR CO., U.S.A.
  
  Fig 6: Identifying Voltage Signal Between Compass Harness Connector M81 Terminal 3 And Ground
  Courtesy of NISSAN MOTOR CO., U.S.A.
OK or NG
1. OK: Replace display and A/C auto amp.
2. NG: Replace compass.