2009 INFINITI QX56 200

SE-20
< COMPONENT DIAGNOSIS >
THIRD SEAT
Third Row Power Folding Seat Switch
INFOID:0000000003775448
1.CHECK THIRD ROW POWER FOLDING SEAT SWITCH OPERATION
1. Turn ignition switch OFF.
2. Disconnect third row power folding seat switch.
3. Check continuity between third row power folding seat switch terminals 2, 3 and 4.
Do you have continuity?
YES >> Inspection End.
NO >> Replace third row power folding seat switch.
Third Row Power Folding Seat MotorINFOID:0000000003775449
1.CHECK MOTOR OPERATION
1. Turn ignition switch OFF.
2. Disconnect third row power folding seat motor connector B403 or B426.
3. Check operation by applying battery voltage to motor terminals 3 and 4.
CAUTION:
• Do not operate motor for more than 3 seconds.
• Be careful not to overheat the harness.
• Third row power folding seat control unit may have to
relearn fold up/down positions after testing.
Does the motor rotate in both directions?
YES >> GO TO 2.
NO >> Replace third row power seat motor. Refer to SE-56, "
Exploded View".
2.CHECK RESISTANCE IN MOTOR
Terminals Condition Continuity
2 4 Press switch button to fold up. Yes
3 4 Press switch button to fold down. Yes
ALJIA0089ZZ
LH (60%) seat
Terminal MotorSeat
3 (Battery positive) - 4 (Battery negative) Rotates counter-clockwise Up
4 (Battery positive) - 3 (Battery negative) Rotates clockwise Down
AWJIA0359ZZ
RH (40%) seat
Terminal MotorSeat
3 (Battery positive) - 4 (Battery negative) Rotates counter-clockwise Down
4 (Battery positive) - 3 (Battery negative) Rotates clockwise Up
Revision: December 20092009 QX56

THIRD SEATSE-21
< COMPONENT DIAGNOSIS >
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Check resistance between motor terminals 3 and 4.
Is the resistance reading of the motor normal?
YES >> Inspection End.
NO >> Replace third row power seat motor. Refer to SE-56,
"Exploded View".
3 - 4 : Approx. 0.5
Ω
AWJIA0360ZZ
Revision: December 20092009 QX56

SE-22
< ECU DIAGNOSIS >
THIRD ROW POWER FOLDING SEAT CONTROL UNIT
ECU DIAGNOSIS
THIRD ROW POWER FOLDING SEAT CONTROL UNIT
Reference ValueINFOID:0000000003775450
TERMINAL LAYOUT
PHYSICAL VALUES
ALJIA0277ZZ
Te r m i n a l N o .Wire
color Description
ConditionVoltage (V)
(Approx.)
+ - Signal nameInput/
Output
1 Ground Y/R Battery Input— Battery voltage
3Ground LG 40% seat switch signal
(down) OutputPush either third row power fold-
ing seat switch passenger (down) 0
Third row power folding seat switch passenger released Battery voltage
4Ground V 60% seat switch signal
(down) OutputPush either third row power fold-
ing seat switch driver (down) 0
Third row power folding seat switch driver released Battery voltage
7 Ground G/R Park signal InputA/T selector lever in P or N
Battery voltage
A/T selector lever not in P or N 0
8 Ground O/L Ignition signal InputIgnition switch ON or START
Battery voltage
Ignition switch OFF 0
9 Ground G/B 40% seat Hall signal Input —9V
10 Ground O/B 60% seat Hall signal Input —9V
11 Ground SB 40% seat switch signal (up) Output Push either third row power fold-
ing seat switch passenger (up) 0
Third row power folding seat switch passenger released Battery voltage
12 Ground O 60% seat switch signal (up) Output Push either third row power fold-
ing seat switch driver (up) 0
Third row power folding seat switch driver released Battery voltage
13 Ground W Battery Input— Battery voltage
14 Ground W Battery Input— Battery voltage
15 Ground Y/B Hall switch ground —— —
16 Ground B Switch ground —— —
17 Ground W/L 60% Seat motor Output— Battery voltage
18 Ground B Ground —— —
19 Ground R/W 60% Seat motor Output— Battery voltage
Revision: December 20092009 QX56

THIRD ROW POWER FOLDING SEAT CONTROL UNITSE-23
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20 Ground G/W 40% Seat motor Output— Battery voltage
21 Ground B Ground —— —
22 Ground V 40% Seat motor Output— Battery voltage
Te r m i n a l N o .
Wire
color Description
ConditionVoltage (V)
(Approx.)
+ - Signal nameInput/
Output
Revision: December 20092009 QX56

SE-24
< ECU DIAGNOSIS >
THIRD ROW POWER FOLDING SEAT CONTROL UNIT
Wiring Diagram
INFOID:0000000003775451
ABJWA0032GB
Revision: December 20092009 QX56

THIRD ROW POWER FOLDING SEAT CONTROL UNITSE-25
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ABJIA0088GB
Revision: December 20092009 QX56

SE-26
< ECU DIAGNOSIS >
THIRD ROW POWER FOLDING SEAT CONTROL UNIT
ABJIA0089GB
Revision: December 20092009 QX56

THIRD ROW POWER FOLDING SEAT CONTROL UNITSE-27
< ECU DIAGNOSIS >
C
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F
G H
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M A
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N
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ABJIA0090GB
Revision: December 20092009 QX56