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NOTE:
Before performing the self-diagnosis, be sure to register the ID or else the actual malfunction location may be different from that dis-
played on CONSULT-III.
Data Monitor Mode
NOTE:
Before performing the self-diagnosis, be sure to register the ID, or the actual malfunction location may be different from that displayed on
CONSULT-III.
Self-Diagnosis (Without CONSULT-III) INFOID:0000000004307330
SELF DIAGNOSTIC PROCE DURE (WITHOUT CONSULT-III)
1. Turn ignition switch ON.
2. Ground the tire pressure warning check connector to initiate self diagnosis.
3. Compare the flashing pattern with the flash code chart below.
NOTE:
The system is normal when the low tire pressure warni ng lamp flashes 5 times and continues repeating. Self-
diagnosis results are erased automatically by turning the ignition switch “OFF”.
[CODE- ERR] - FL [C1720]
[CODE- ERR] - FR [C1721]
[CODE- ERR] - RR [C1722]
[CODE- ERR] - RL [C1723] Function code data from FL transmitter is malfunctioning.
Function code data from FR transmitter is malfunctioning.
Function code data from RR transmitter is malfunctioning.
Function code data from RL transmitter is malfunctioning. WT-19[BATT - VOLT - LOW] - FL [C1724]
[BATT - VOLT - LOW] - FR [C1725]
[BATT - VOLT - LOW] - RR [C1726]
[BATT - VOLT - LOW] - RL [C1727] Battery voltage of FL transmitter drops.
Battery voltage of FR transmitter drops.
Battery voltage of RR transmitter drops.
Battery voltage of RL transmitter drops. WT-19VHCL_SPEED_SIG_ERR [C1729] Vehicle
speed signal is in error.WT-20IGN_CIRCUIT_OPEN [C1735] Vehicle
ignition signal is in error. WT-21Diagnostic item Diagnostic item is detected when ···
Reference
page MONITOR CONDITION SPECIFICATION
VHCL SPEED Drive vehicle. Vehicle speed (km/h or MPH)
AIR PRESS FL
AIR PRESS FR
AIR PRESS RR
AIR PRESS RL • Drive vehicle for a few minutes.
Tire pressure (kPa or psi)
or
• Ignition switch ON and activation tool is transmitting activation signals.
ID REGST FL1
ID REGST FR1
ID REGST RR1
ID REGST RL1 Ignition switch ON Registration ID: DONE
No registration ID: YET
WARNING LAMP Low tire pressure
warning lamp on: ON
Low tire pressure warning lamp off: OFF
BUZZER Buzzer in combination meter on: ON
Buzzer in combination meter off: OFF
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System
Description " .
—
21
22
23
24 Transmitter no data (FL)
Transmitter no data (FR)
Transmitter no data (RR)
Transmitter no data (RL) WT-1931
32
33
34 Transmitter chec
ksum error (FL)
Transmitter chec ksum error (FR)
Transmitter chec ksum error (RR)
Transmitter chec ksum error (RL) WT-1935
36
37
38 Transmitter pressure
data error (FL)
Transmitter pressure data error (FR)
Transmitter pressure data error (RR)
Transmitter pressure data error (RL) WT-2041
42
43
44 Transmitter function
code error (FL)
Transmitter function code error (FR)
Transmitter function code error (RR)
Transmitter function code error (RL) WT-1945
46
47
48 Transmitter battery voltage low (FL)
Transmitter battery voltage low (FR)
Transmitter battery voltage low (RR)
Transmitter battery voltage low (RL) WT-1952 Vehicle speed signal
WT-2054 Vehicle ignition signal
WT-21Low tire pressure warning lamp does
not come on when ignition switch is
turned on. • Fuse or combination meter
• BCM connector or circuit
• BCM WT-22Low tire pressure
warning lamp stays
on when ignition switch is turned on. • Combination meter
• BCM connector or circuit
• BCM WT-22Low tire pressure wa
rning lamp flashes
when ignition switch is turned on. • BCM harness connector or circuit
• BCM
• Transmitter's mode off
• ID registration not completed yet WT-23Hazard warning lamps flash when igni-
tion switch is turned on. • BCM harness connector or circuit
• BCM WT-24ID registration cannot be completed.
• Transmitter
• Remote keyless entry receiver harness connector or circuit
• Remote keyless entry receiver
• BCM harness connector or circuit
• BCM WT-24
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FRONT WIPER AND WASHER SYSTEM
Component Parts and Har ness Connector Location INFOID:0000000004306904
System Description INFOID:0000000004306905
• Front wiper relays (front wiper relay, front wiper hi gh relay) are located in the IPDM E/R (intelligent power
distribution module engine room).
• Wiper switch (combination switch) is composed of a combination of 5 output terminals and 5 input terminals.
Terminal combination status is read by BCM (body control module) when switch is turned ON.
• BCM controls front wiper LO, HI, and INT (intermittent) operation.
• IPDM E/R operates wiper motor accordi ng to CAN communication signals from BCM.
OUTLINE
Power is supplied at all times
• to ignition relay, located in IPDM E/R, from battery directly,
• through 40A fusible link (letter g, located in fuse and fusible link box)
• to BCM terminal 70,
• through 30A fuse (No. 39, located in IPDM E/R)
• to front wiper relay located in IPDM E/R
• through 15A fuse (No. 52, located in IPDM E/R), and
• through 20A fuse (No. 53, located in IPDM E/R)
• to CPU located in IPDM E/R.
When ignition switch is in ON or START position, power is supplied
• through ignition relay (located in IPDM E/R)
• to front wiper relay (located in IPDM E/R), and 1. IPDM E/R E45, E46 and E48 2. BCM M18 and M20 (view with glove
box removed)3. Front wiper motor E1
(view with cowl
top cover removed)
4. Front and rear washer motor E2 (view with front bumper fascia re-
moved) 5. Combination switch (wiper switch)
M28
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AUTO STOP OPERATION
With wiper switch turned OFF, wiper motor will cont inue to operate until wiper arms reach windshield base.
When the wiper arms are not located at base of wi ndshield with wiper switch OFF, ground is supplied
• from IPDM E/R terminal 33
• to front wiper motor terminal 3, in order to continue wiper motor operation at low speed.
When the wiper arms reach base of windshield, fr ont wiper motor terminals 4 and 2 are connected, and
ground is supplied
• to IPDM E/R terminal 38
• through front wiper motor terminals 4 and 2, and
• through grounds E15 and E24.
Then the IPDM E/R sends auto stop operation signal to BCM with CAN communication line.
When the BCM receives auto-stop operation signal, BCM sends wiper stop signal to IPDM E/R with CAN com-
munication line.
IPDM E/R stops wiper motor. Wiper motor wi ll then stop wiper arms at the STOP position.
WASHER OPERATION When the wiper switch is in front wiper washer positi on, BCM detect front wiper washer signal by BCM combi-
nation switch reading function. Refer to BCS-3, " System Description " .
Combination switch power is supplied
• through combination switch terminal 14
• to washer motor terminal 1.
Ground is supplied
• to front washer motor terminal 2
• through combination switch terminal 11, and
• through combination switch terminal 12
• through grounds M57 and M61.
With ground supplied, front washer motor is operated.
When the BCM detects that front washer motor has operated for 0.4 seconds or longer, BCM operates front
wiper motor for low speed.
When the BCM detects washer switch is OFF, low speed operation cycles approximately 2 times and stops.
MIST OPERATION When the wiper switch is turned to the mist positi on, wiper low speed operation cycles once and then stops.
For additional information about wiper operation under th is condition, refer to "LOW SPEED WIPER OPERA-
TION" .
If switch is held in mist posit ion, low speed operation continues.
FAIL-SAFE FUNCTION If an abnormality occurs in CAN communications, IPDM E/ R holds the condition just before fail-safe status is
initiated until ignition switch is turned OFF. (If wipers we re operating in LO just before the initiation of fail-safe
status, they continue to operate in LO until ignition switch is turned OFF.)
COMBINATION SWITCH READING FUNCTION Refer to BCS-3, " System Description " .
CAN Communication System Description INFOID:0000000004306906
Refer to LAN-8, " System Description " .
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OK >> Replace front wiper motor. Refer to
WW-20, " Removal and Installation of Front Wiper Drive
Assembly " .
NG >> Replace IPDM E/R. Refer to PG-27, " Removal and Installation of IPDM E/R " .
Front Wiper Does Not Return to Stop Positi on (After Front Wiper Operate for 10 Sec-
onds, They Stop for 20 Second s, and After Repeating the Operation Five Times, They
Become Inoperative) INFOID:0000000004306916
CAUTION:
• When auto-stop signal has not varied for 10 seconds or longer while IPDM E/R is operating front wip-
ers, IPDM E/R considers that front wipers are locked, and stops wiper output. That causes this symp-
tom.
• This status can be checked by “DATA MONITOR” of “IPDM E/R” on which “WIPER PROT” item
shows “BLOCK”. OK >> Replace IPDM E/R. Refer to
PG-27, " Removal and Installation of IPDM E/R " .
NG >> GO TO 2. OK >> Replace IPDM E/R. Refer to
PG-27, " Removal and Installation of IPDM E/R " .
NG >> GO TO 3. Terminal
ConditionVoltage
(Approx.)
(+)
(-)
IPDM E/R
connector Terminal
E46 38 Ground Wiper stopped 0V
Wiper operating Battery voltage