Infiniti QX56 (JA60). Manual - part 874
SN
SONAR CONTROL UNIT FOR REAR SONAR SYSTEM
SN-21
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ECU DIAGNOSIS
SONAR CONTROL UNIT FOR REAR SONAR SYSTEM
Reference Value
INFOID:0000000005146207
SONAR CONTROL UNIT TERMINAL LAYOUT
TERMINALS AND REFERENCE VALUES FOR SONAR CONTROL UNIT
WKIA5222E
Terminal
(wire color)
Item
Condition
Reference value (V)
(Approx.)
Ignition
switch
Operation
3 (R)
Sonar buzzer return
ON
—
0 - 12 (variable)
4 (BR/Y)
Sonar system OFF
indicator output
ON
Sonar system OFF
switch
ON
0
OFF
Battery voltage
5 (G/W)
Reverse signal
ON
Transmission gear se-
lector lever
R position
Battery voltage
Transmission gear se-
lector lever
Not R position
0
6 (B)
Sonar control unit
ground
—
—
0
7 (L)
Sonar buzzer drive
signal
ON
—
Battery voltage
8 (G/R)
Sonar control unit
power
ON
—
Battery voltage
9 (GR)
Rear sonar sensor
signal - RH outer
ON
• Sonar system OFF switch ON
• Transmission gear selector lever in R po-
sition
• No obstacles
Battery voltage
10 (P)
Rear sonar sensor
signal - LH outer
ON
• Sonar system OFF switch ON
• Transmission gear selector lever in R po-
sition
• No obstacles
Battery voltage
11 (O)
Rear sonar sensor
signal - LH inner
ON
• Sonar system OFF switch ON
• Transmission gear selector lever in R po-
sition
• Distance obstacles
Battery voltage
12 (LG)
Rear sonar sensor
signal - RH inner
ON
• Sonar system OFF switch ON
• Transmission gear selector lever in R po-
sition
• Distance obstacles
Battery voltage
13 (LG)
Sonar system OFF
switch signal
ON
Sonar system OFF
switch
ON
0
OFF
Battery voltage