ESP INFINITI M35 2007 Factory Service Manual

WT-12
TROUBLE DIAGNOSES
Revision: 2007 April2007 M35/M45
TROUBLE DIAGNOSESPFP:00004
How to Perform Trouble DiagnosesNES000JU
BASIC CONCEPT

The most important point to perform trouble diagnosis is to understand systems (control and mechanism)
in vehicle thoroughly.

It is also important to clarify customer complaints before inspec-
tion.
First of all, reproduce symptom, and understand it fully.
Ask customer about his/her complaints carefully. In some cases,
they will be necessary to check symptom by driving vehicle with
customer.
CAUTION:
Customers are not professionals. Do not assume “maybe
customer means...” or “maybe the customer mentioned this
symptom”.

It is essential to check symptoms right from beginning in order to
repair a malfunction completely.
For an intermittent malfunction, it is important to reproduce
symptom based on interview with customer and past examples.
Do not perform inspection on ad hoc basis. Most intermittent
malfunctions are caused by poor contacts. In this case, it will be
effective to shake suspected harness or connector by hand.
When repairs are performed without any symptom check, no
one can judge if malfunction has actually been eliminated.

Always diagnosis, make sure to perform “ERASE MEMORY”.

Always read “GI General information” to confirm general precau-
tions. Refer to GI-4, "
General Precautions" .
EFJ0028D
SEF233G

TROUBLE DIAGNOSES
WT-19
C
D
F
G
H
I
J
K
L
MA
B
WT
Revision: 2007 April2007 M35/M45
Transmitter Wake Up OperationNES000JZ
WITH TRANSMITTER ACTIVATION TOOL
1. With the activation tool (J-45295) pushed against the front-left
transmitter, press and hold the button for 5 seconds.

When ignition switch ON, as the low tire pressure warning
lamp blinks per the follow diagram, the respective transmitter
then must be wake up.
2. Register the ID of wheel that warning lamp flashes. When wake up of registered wheel has been com-
pleted, turn signal lamp flashes two times.
3. After completing wake up all transmitters, make sure low tire pressure warning lamp goes out.
CONSULT-II Function (AIR PRESSURE MONITOR)NES000K0
DESCRIPTION
CONSULT-II can display each diagnostic item using the diagnostic test modes shown following.
CONSULT-II SETTING PROCEDURE
Refer to GI-38, "CONSULT-II Start Procedure" .
SEIA0460E
SEIA0378E
Diagnostic test mode Function Reference
WORK SUPPORTThis mode enables a technician to adjust some devices faster and more
accurately by following the indications on CONSULT-II.WT-20, "
WORK SUP-
PORT MODE"
SELF-DIAG RESULTSReceives self-diagnosis results from low tire pressure warning control
unit and indicates DTCs. WT-20, "SELF-DIAG
RESULT MODE"
DATA MONITORReceives input/output signals from low tire pressure warning control
unit and indicates and stores them to facilitate locating cause of mal-
functions.WT-21, "DATA MONITOR
MODE"
CAN DIAG SUPPORT MNTR Monitors transmitting/receiving status of CAN communication.LAN-44, "CAN Diagnostic
Support Monitor"
ACTIVE TESTDiagnostic Test Mode in with CONSULT-II drives some actuators apart
from the low tire pressure warning control unit and also shifts some
parameters in a specified range.WT-22, "ACTIVE TEST
MODE"
ECU PART NUMBER Displays low tire pressure warning control unit part number. WT-22, "
LOW TIRE PRES-
SURE WARNING CON-
TROL UNIT PART
NUMBER"

WW-8
FRONT WIPER AND WASHER SYSTEM
Revision: 2007 April2007 M35/M45
COMBINATION SWITCH READING FUNCTION
Description

BCM reads combination switch (wiper) status, and controls front wipers according to the results.

BCM reads information of a maximum of 20 switches by combining five output terminals (OUTPUT 1-5)
and five input terminals (INPUT 1-5).
Operation Description

BCM activates transistors of output terminals (OUTPUT 1-5) periodically and allows current to flow in turn.

If any (one or more) switches are turned ON, circuit of output terminals (OUTPUT 1-5) and input terminals
(INPUT 1-5) becomes active.

At this time, transistors of output terminals (OUTPUT 1-5) are activated to allow current to flow. When volt-
age of input terminals (INPUT 1-5) corresponding to that switch changes, interface in BCM detects volt-
age change, and BCM determines that the switch is ON.
BCM - Operation Table of Combination Switches

BCM reads operation status of combination switch using combinations shown in table below.
PKID0470E
PKIC0276E