Compass Display "- - -"

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 Function ".

Is fail-safe mode activated?

YES: GO TO 3.

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?

YES: INSPECTION END

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

OK: GO TO 4.

NG: Repair malfunctioning part.
CHECK COMPASS CIRCUIT
1. Disconnect compass connector and 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 Continuity Between Compass Connector M81 Terminal 2 (L) And Display And A/C Auto Amp. Connector M31 Terminal 6 (L)
  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

OK: GO TO 5.

NG: Repair harness or connector.

Fig 2: Identifying Continuity Between Compass Connector M81 Terminal 3 And Display And A/C Auto Amp. Connector M31 Terminal 7
Courtesy of NISSAN MOTOR CO., U.S.A.
CHECK COMPASS SIGNAL
1. Connect compass connector and display and A/C auto amp. connector.
2. Turn ignition switch ON.
3. Check voltage signal between compass harness connector M81 terminal 2 (L) and ground.
  2 (L) - Ground:
  
  Fig 3: Connector M81 Terminal 2 (L) And Ground - Voltage Signal Graph
  Courtesy of NISSAN MOTOR CO., U.S.A.
  
  Fig 4: Identifying Voltage Signal Between Compass Harness Connector M81 Terminal 2 (L) And Ground
  Courtesy of NISSAN MOTOR CO., U.S.A.
4. Check voltage signal between compass harness connector M81 terminal 3 (R) and ground.
  3 (R) - Ground:
  
  Fig 5: Connector M81 Terminal 3 (R) And Ground - Voltage Signal Graph
  Courtesy of NISSAN MOTOR CO., U.S.A.
  
  Fig 6: Identifying Voltage Signal Between Compass Harness Connector M81 Terminal 3 (R) And Ground
  Courtesy of NISSAN MOTOR CO., U.S.A.
OK or NG

OK: Replace display and A/C auto amp.

NG: Replace compass.