AUDIO PILOTTM Does Not Work

WARNING: This page is about a different car, the 2005 Nissan 350Z. However, it is still accessible from the selected car via links, so may be relevant.

CHECK AUDIO UNIT
Check AUDIO PILOT^TM turns ON.

OK or NG
- OK : GO TO 2.
- NG : Turn AUDIO PILOT^TM ON.
CHECK HARNESS
1. Turn ignition switch OFF.
2. Disconnect audio unit connector and BOSE speaker amp. connector.
3. Check continuity between audio unit harness connector M39 terminal 17 (Y/R) and BOSE speaker amp. harness connector T7 terminal 31 (Y/R).
  - 17 - 31 : Continuity should exist.
4. Check continuity between audio unit harness connector M39 terminal 17 (Y/R) and ground.
  - 17 - Ground : Continuity should not exist.
OK or NG
- OK : GO TO 3.
- NG : Repair harness or connector.
Fig 1: Audio Unit Harness Connector M39 Terminal 17 (Y/R) & Ground Continuity Test
Courtesy of NISSAN MOTOR CO., U.S.A.
CHECK AUDIO PILOT ^TM SIGNAL
1. Connect audio unit connector and BOSE speaker amp. connector.
2. Turn ignition switch ON.
3. Check voltage between audio unit harness connector terminals and ground.
  
  Fig 2: Audio Unit Harness Connector Terminals And Ground Voltage Chart
  Courtesy of NISSAN MOTOR CO., U.S.A.
  
  Fig 3: Checking Voltage Between Audio Unit Harness Connector Terminals And Ground
  Courtesy of NISSAN MOTOR CO., U.S.A.
OK or NG
- OK : GO TO 4.
- NG : Replace audio unit.
CHECK 1: MICROPHONE CIRCUIT
1. Turn ignition switch OFF
2. Disconnect BOSE speaker amp. connector and microphone connector.
3. Check continuity between BOSE speaker amp. harness connector T7 terminal 17 (R/B for Coupe models, L/Y for Roadster models) and microphone harness connector E123 terminal 1 (R/B).
  - 17 - 1 : Continuity should exist.
4. Check continuity between BOSE speaker amp. harness connector T7 terminal 17 (R/B for Coupe models, L/Y for Roadster models) and ground.
  - 17 - Ground : Continuity should not exist.
  Fig 4: Bose Speaker AMP Harness Connector T7 Terminal (R/B For Coupe Models, L/Y For Roadster Models) & Ground Continuity Test
  Courtesy of NISSAN MOTOR CO., U.S.A.
OK or NG
- OK : GO TO 5.
- NG : Repair harness or connector.
CHECK 2: MICROPHONE CIRCUIT
1. Check continuity between BOSE speaker amp. harness connector T7 terminal 18 (R/W for Coupe models, L/G for Roadster models) and microphone harness connector E123 terminal 2 (R/W).
  - 18 - 2 : Continuity should exist.
2. Check continuity between BOSE speaker amp. harness connector T7 terminal 18 (R/W for Coupe models, L/G for Roadster models) and ground.
  - 18 - Ground : Continuity should not exist.
  Fig 5: Bose Speaker AMP Harness Connector T7 Terminal (R/W For Coupe Models, L/G For Roadster Models) & Ground Continuity Test
  Courtesy of NISSAN MOTOR CO., U.S.A.
OK or NG
- OK : GO TO 6.
- NG : Repair harness or connector.
CHECK MICROPHONE SIGNAL
1. Connect BOSE speaker amp. connector and microphone connector.
2. Turn ignition switch ON.
3. Check signal between BOSE speaker amp. harness connector T7 terminal 17 (R/B for Coupe models, L/Y for Roadster models) and 18 (R/W for Coupe models, L/G for Roadster models) with CONSULT-II or oscilloscope, when inputting some sounds (voice, etc.) toward the microphone.
  
  Fig 6: Microphone Signal Specifications Table
  Courtesy of NISSAN MOTOR CO., U.S.A.
  
  Fig 7: Microphone Signal Terminal Connector Voltage Test
  Courtesy of NISSAN MOTOR CO., U.S.A.
Does the voltage signal change with sounds?
- YES : Replace BOSE speaker amp.
- NO : Replace microphone.