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Home >> Infiniti >> 2009 >> QX56 AWD >> Repair and Diagnosis (Single Page) >> Accessories & Equipment >> Collision/Avoidance >> Sonar System >> Ecu Diagnosis >> Sonar Control Unit For Front And Rear Sonar System >> Reference Value >> Terminals And Reference Values For Sonar Control Unit
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Terminals And Reference Values For Sonar Control Unit

CONNECTOR TERMINAL REFERENCE

Terminal (color) Item Condition Reference value (V) (Approx.)
Ignition switch Operation
1 (G/R) Sonar control unit power ON - Battery voltage
2 (L) Sonar buzzer drive signal ON Object sensed Battery voltage
3 (G/W) Reverse signal ON Transmission gear selector lever in R position Battery voltage
Transmission gear selector lever not in R position 0
4 (B) Sonar control unit ground - - -
5 (BR/Y) Sonar system OFF indicator output ON Sonar system OFF switch ON 0
OFF Battery voltage
6 (R) Rear sonar buzzer return ON - 0 - 12 (variable)
8 (G/W) K-line ON - -
9 (LG/B) Rear sonar sensor power ON Ignition switch ON Battery voltage
11 (LG) Sonar system OFF switch signal ON Sonar system OFF switch ON 0
OFF Battery voltage
12 (Y) Rear sonar sensor ground ON - -
13 (LG) Rear sonar sensor signal - RH inner ON
  • Sonar system OFF switch ON
  • Transmission gear selector lever in R position
  • Distance obstacles
Battery voltage
14 (O) Rear sonar sensor signal - LH inner ON
  • Sonar system OFF switch ON
  • Transmission gear selector lever in R position
  • Distance obstacles
Battery voltage
15 (P) Rear sonar sensor signal - LH outer ON
  • Sonar system OFF switch ON
  • Transmission gear selector lever in R position
  • No obstacles
Battery voltage
16 (GR) Rear sonar sensor signal - RH outer ON
  • Sonar system OFF switch ON
  • Transmission gear selector lever in R position
  • No obstacles
Battery voltage
17 (LG/B) Front sonar sensor power ON Ignition switch ON Battery voltage
18 (GR/R) Park position signal ON Vehicle in PARK 12
19 (GR) Front sonar sensor signal - RH outer ON
  • Sonar system OFF switch ON
  • Transmission gear selector lever in a forward drive gear
  • Distance obstacles
Battery voltage
20 (LG) Front sonar sensor signal - RH inner ON
  • Sonar system OFF switch ON
  • Transmission gear selector lever in reverse or a forward drive gear
  • No obstacles
Battery voltage
21 (W/R) Vehicle speed signal ON Speedometer operated [When vehicle speed is approx. 40 km/h (25 MPH)]
NOTE: Maximum voltage may be 12V due to specifications (connected units).
G04889729Courtesy of NISSAN MOTOR CO., U.S.A.
23 (R) Front sonar buzzer return ON - 0 - 12 (variable)
24 (P) Front sonar sensor signal - LH outer ON
  • Sonar system OFF switch ON
  • Transmission gear selector lever in reverse or a forward drive gear
  • No obstacles
Battery voltage
25 (O) Front sonar sensor signal - LH inner ON
  • Sonar system OFF switch ON
  • Transmission gear selector lever in a forward drive gear
  • Distance obstacles
Battery voltage
26 (Y) Front sonar sensor ground ON - -