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I BODY

B
SECTION
ADJUSTABLE PEDAL C

E
CONTENTS
PRECAUTIONS ......................................................... 2
. Automatic Drive Positioner Interlocking Adjustable F
Precautions for Supplemental Restraint System Pedal ....................................................................... 3
.
(SRS) "AIR BAG" and "SEAT BELT PRE-TEN- Adjustable Pedal (Only Manual Operation Model)..... 3
SIONER" ................................................................. 2
. Trouble Diagnosis .................................................... 7. G
Trouble Diagnosis Precaution ................................. 2 . Removal and Installation ....................................... 11 .
ADJUSTABLE PEDAL SYSTEM .............................. 3 .
H

Revision: January 2005 AP-1 2004 Quest
PRECAUTIONS

PRECAUTIONS PFP:00001

Precautions for Supplemental Restraint System (SRS) "AIR BAG" and "SEAT
BELT PRE-TENSIONER" EIS001Z6

The Supplemental Restraint System such as "AIR BAG" and "SEAT BELT PRE-TENSIONER", used along
with a front seat belt, helps to reduce the risk or severity of injury to the driver and front passenger for certain
types of collision. This system includes seat belt switch inputs and dual stage front air bag modules. The SRS
system uses the seat belt switches to determine the front air bag deployment, and may only deploy one front
air bag, depending on the severity of a collision and whether the front occupants are belted or unbelted.
Information necessary to service the system safely is included in the SRS and SB section of this Service Man-
ual.
WARNING:
q To avoid rendering the SRS inoperative, which could increase the risk of personal injury or death
in the event of a collision which would result in air bag inflation, all maintenance must be per-
formed by an authorized NISSAN/INFINITI dealer.
q Improper maintenance, including incorrect removal and installation of the SRS, can lead to per-
sonal injury caused by unintentional activation of the system. For removal of Spiral Cable and Air
Bag Module, see the SRS section.
q Do not use electrical test equipment on any circuit related to the SRS unless instructed to in this
Service Manual. SRS wiring harnesses can be identified by yellow and/or orange harnesses or
harness connectors.
Trouble Diagnosis Precaution EIS001Z8

When you read wiring diagrams, refer to the following:
q GI-12, "How to Read Wiring Diagrams"
q PG-4, "POWER SUPPLY ROUTING CIRCUIT"
When you perform trouble diagnosis, refer to the following:
q GI-10, "HOW TO FOLLOW TEST GROUPS IN TROUBLE DIAGNOSES"
q GI-25, "How to Perform Efficient Diagnosis for an Electrical Incident"
Check for any service bulletins before servicing the vehicle.

Revision: January 2005 AP-2 2004 Quest
ADJUSTABLE PEDAL SYSTEM

ADJUSTABLE PEDAL SYSTEM PFP:98800
A
Automatic Drive Positioner Interlocking Adjustable Pedal EIS001XP

Automatic drive positioner interlocking adjustable pedal. Refer to SE-11, "AUTOMATIC DRIVE POSITIONER"
. B
Adjustable Pedal (Only Manual Operation Model) EIS001XQ

COMPONENT PARTS AND HARNESS CONNECTOR LOCATION
C

WIIA0205E K
SYSTEM DESCRIPTION
The adjustable pedal system power supply is controlled by the pedal adjusting control unit.
L
Power is supplied at all times
q through 40A fuse (letter m , located in the fuse and fusible link box),
q to circuit breaker-2 terminal 1
M
q through circuit breaker-2 terminal 2
q to pedal adjusting control unit terminal 5.
With the ignition switch ON, power is supplied
q through 10A fuse [No. 1, located in the fuse block (J/B)]
q to pedal adjusting control unit terminal 4.
Ground is supplied
q to pedal adjusting control unit terminal 1
q through body grounds M57, M61 and M79 and
q to pedal adjusting switch terminal 4
q through body grounds B7 and B19.
When the A/T selector lever is shifted to P position, ground is supplied
q to pedal adjusting control unit terminal 3
q through A/T device terminal 7
q through A/T device terminal 6

Revision: January 2005 AP-3 2004 Quest
ADJUSTABLE PEDAL SYSTEM

q through body grounds M57, M61 and M79.
Then pedal adjusting control unit recognizes that A/T selector lever is in P position.
With the ignition switch in OFF or ON position and A/T selector lever is shifted to the P position, power is sup-
plied
q through pedal adjusting control unit terminal 7
q to pedal adjusting switch terminal 1.
With power supplied, pedal adjusting switch is energized.
When pedal is adjusted forward, power is supplied
q through pedal adjusting switch terminal 3
q to pedal adjusting motor terminal 1.
Then ground is supplied
q to pedal adjusting motor terminal 2
q through pedal adjusting switch terminal 2
q through pedal adjusting switch terminal 4
q through body grounds B7 and B19.
With power and ground supplied, accelerator and brake pedals move forward.
When pedal is adjusted backward, power is supplied
q through pedal adjusting switch terminal 2
q to pedal adjusting motor terminal 2.
Then ground is supplied
q to pedal adjusting motor terminal 1
q through pedal adjusting switch terminal 3
q through pedal adjusting switch terminal 4
q through body grounds B7 and B19.
With power and ground supplied, accelerator and brake pedals move backward.

Revision: January 2005 AP-4 2004 Quest
ADJUSTABLE PEDAL SYSTEM

WIRING DIAGRAM -- PEDAL --
A

WIWA0152E

Revision: January 2005 AP-5 2004 Quest
ADJUSTABLE PEDAL SYSTEM

WIWA0382E

Revision: January 2005 AP-6 2004 Quest
ADJUSTABLE PEDAL SYSTEM

TERMINAL AND REFERENCE VALUE FOR PEDAL ADJUSTING CONTROL UNIT
TERMI- WIRE VOLTAGE (V)
A
ITEM CONDITON
NAL COLOR (Approx.)
1 B Ground -- 0
B
Selector lever in P position 0
3 G/Y A/T device (Park switch) signal
Other than above Battery voltage
4 R/W Ignition switch (ON or START) Ignition switch (ON or START position) Battery voltage C
5 W Battery power supply -- Battery voltage
Ignition switch ON
Pedal adjusting switch power supply out- 0
7 G/W Selector lever in other than P position D
put
Selector lever in P position Battery voltage

Trouble Diagnosis EIS0021S
E
WORK FLOW
1. Check the symptom and customer's requests.
2. Perform the preliminary check. Refer to AP-7, "PRELIMINARY CHECK" . F
3. According to the trouble diagnosis chart, repair or replace the cause of the malfunction. Refer to AP-8,
"TROUBLE DIAGNOSIS CHART BY SYMPTOM" .
4. Does adjustable pedal system operate normally? G
YES: GO TO 5.
NO: GO TO 3.
5. Inspection End. H
PRELIMINARY CHECK
1. CHECK ADJUSTABLE PEDAL MECHANISM AP
Check the following.
q Movable part of accelerator pedal or brake pedal is deformed, or there is foreign material in it.
q Accelerator pedal or brake pedal is deformed or broken. J
OK or NG
OK >> Preliminary check is OK.
NG >> Repair or replace the malfunctioning part and check again. K

Revision: January 2005 AP-7 2004 Quest
ADJUSTABLE PEDAL SYSTEM

TROUBLE DIAGNOSIS CHART BY SYMPTOM
NOTE:
Always check the WORK FLOW before troubleshooting. Refer to AP-7, "WORK FLOW" .
Symptom Diagnosis / service procedure Reference page
1. Pedal adjusting control unit power supply and ground circuit
AP-8
inspection.
Adjustable pedal system does not operate. 2. Pedal adjusting switch power supply and ground circuit inspec-
AP-10
tion.
3. Pedal adjusting motor circuit inspection. AP-11
1. A/T device circuit inspection. AP-9
Adjustable pedal system does operate when
ignition switch is turned ON and A/T selector 2. Pedal adjusting control unit signal inspection. AP-8
lever is in other than P position.
3. Replace pedal adjusting control unit. AP-11
Adjustable pedal system does not operate
when ignition switch is turned ON and A/T 1. A/T device circuit inspection. AP-9
selector lever is in P position.

PEDAL ADJUSTING CONTROL UNIT IGNITION SIGNAL INSPECTION
1. CHECK FUSE
Check 10A fuse [No. 1, located in fuse block (J/B)].
NOTE:
Refer to AP-5, "Wiring Diagram -- PEDAL --" .
OK or NG
OK >> GO TO 2.
NG >> If fuse is blown, be sure to eliminate cause of malfunction before installing new fuse. Refer to PG-
4, "POWER SUPPLY ROUTING CIRCUIT" .

2. CHECK PEDAL ADJUSTING CONTROL UNIT IGNITION POWER SUPPLY CIRCUIT
1. Turn ignition switch ON.
2. Check voltage between pedal adjusting control unit connector
and ground.

Connector Terminal (Wire color) Voltage (V)
Condition
(+) (

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