Voice Activated Control System Not Starting PTT Switch Pushed On

WARNING: This page is about a different car, the 2002 Infiniti Q45. However, it is still accessible from the selected car via links, so may be relevant.

CHECK PTT SWITCH OPERATION
Check PTT switch operation with self-diagnosis of multifunction switch. Refer to MULTIFUNCTION SWITCH SELF-DIAGNOSIS FUNCTION .

OK or NG
1. OK >> GO TO 2.
2. NG >> Replace steering switch.
CHECK MULTIFUNCTION SWITCH AND VOICE ACTIVATED CONTROL MODULE
Start self-diagnosis mode. Refer to Self-Diagnosis Mode (with Navigation System) and SELF-DIAGNOSIS MODE (WITHOUT NAVIGATION SYSTEM) .

Does self-diagnosis mode start?
1. YES >> GO TO 3.
2. NO >> Replace multifunction switch.
CHECK VOICE ACTIVATED CONTROL MODULE
Check voice activated control module with self-diagnosis mode started in previous step 2

OK or NG
1. OK >>
  - Replace AV and NAVI control unit (with navigation system), or
  - Replace AV control unit (without navigation system).
2. NG >> GO TO 4.
POWER SUPPLY AND GROUND CIRCUIT CHECK
Check power supply and ground circuit of voice activated control module. Refer to POWER SUPPLY AND GROUND CIRCUIT CHECK .

OK or NG
1. OK >> GO TO 5.
2. NG >> Repair or replace harness.
AV COMMUNICATION LINE CHECK
1. Disconnect the following connector and voice activated control module connector M71.
  - B31 connector: AV and NAVI control unit (with navigation system)
  - M50 connector: AV control unit (without navigation system and without rear control switch)
  - B34 connector: AV control unit (For Canada without navigation system and with rear control switch)
2. Check continuity between AV and NAVI control unit or AV control unit and voice activated control module.
  
  Fig 1: AV Communication Line Check (1 Of 2)
  Courtesy of NISSAN MOTOR CO., U.S.A.
  
  Fig 2: AV Communication Line Check (2 Of 2)
  Courtesy of NISSAN MOTOR CO., U.S.A.
OK or NG
1. OK >> Replace voice activated control module.
2. NG >> Repair or replace harness.