2005 TOYOTA AVENSIS sensor




H40584
P Squib
(2nd step)Airbag
Sensor
Assy
Center
P2+Instrument Panel Wire
A
B
C
D
±
DIAGNOSTICS SUPPLEMENTAL RESTRAINT SYSTEM
05±1371
AVENSIS REPAIR MANUAL (RM1018E)
DTC B1188/56 SHORT IN P SQUIB (2ND STEP) CIRCUIT
(TO B+)
CIRCUIT DESCRIPTION
The P squib (2nd step) circuit consists of the airbag sensor assy center \
and the instrument panel passenger
airbag assy.
This circuit actuates the SRS to deploy when the SRS deployment conditio\
ns are fulfilled.
DTC B1188/56 is recorded when a short to B+ is detected in the P squib (2nd s\
tep) circuit.
DTC No.DTC Detecting ConditionTrouble Area
B1188/56

Short circuit in P squib (2nd step) wire harness (to B+)

P squib (2nd step) malfunction

Airbag sensor assy center malfunction
Instrument panel passenger airbag assy (P squib, 2nd step)

Airbag sensor assy center

Instrument panel wire
WIRING DIAGRAM
See page 05±1362.
INSPECTION PROCEDURE
1 CHECK INSTRUMENT PANEL WIRE(P SQUIB, 2ND STEP CIRCUIT)
(a) Turn the ignition switch to the LOCK position.
(b) Disconnect the negative (±) terminal cable from the bat-
tery, and wait for at least 90 seconds.
(c) Disconnect the connectors from the airbag sensor assy center and the instrument panel passenger airbag assy.
(d) Connect the negative (±) terminal cable to the battery,
and turn the ignition switch to the ON position.
(e) Measure the voltage between the body ground and P2+ of the connector ºCº.
OK:
Voltage: Below 1 V
NG REPAIR OR REPLACE INSTRUMENT PANEL WIRE
OK
056N0±03


 
 



\bH42248
Airbag
Sensor
Assy
Center
P2+
P2±
DTC B1188/56
DLC3
TC
CG
P Squib
(2nd step)Instrument Panel Wire
SST
C
D
05±1372
±
DIAGNOSTICS SUPPLEMENTAL RESTRAINT SYSTEM
AVENSIS REPAIR MANUAL (RM1018E)
2CHECK AIR BAG SENSOR ASSY CENTER
(a)Turn the ignition switch to the LOCK position.
(b)Disconnect the negative (±) terminal cable from the bat- tery, and wait for at least 90 seconds.
(c)Connect the connector to the airbag sensor assy center.
(d)Using SST, connect P2+ and P2± of the connector ºCº. SST09843±18040
(e)Connect the negative (±) terminal cable to the battery,
and wait for at least 2 seconds.
(f)Turn the ignition switch to the ON position, and wait for at least 10 seconds.
(g)Clear the stored DTCs in the memory (See page
05±1184).
(h) Turn the ignition switch to the LOCK position.
(i) Turn the ignition switch to the ON position, and wait for at least 10 seconds.
(j)Check the DTCs (See page 05±1184).
OK:
DTC B1188/56 is not output.
HINT:
Codes other than code B1188/56 may be output at this time, but
they are not related to this check.
NG REPLACE AIR BAG SENSOR ASSY CENTER
OK






 \bH42152
DTC B1188/56
DLC3 Airbag
Sensor
Assy
Center
TC
CG
P Squib
(2nd step)
C
D
±
DIAGNOSTICS SUPPLEMENTAL RESTRAINT SYSTEM
05±1373
AVENSIS REPAIR MANUAL (RM1018E)
3CHECK INSTRUMENT PANEL PASSENGER AIR BAG ASSY(P SQUIB, 2ND STEP)
(a)Turn the ignition switch to the LOCK position.
(b)Disconnect the negative (±) terminal cable from the bat-
tery, and wait for at least 90 seconds.
(c)Connect the connector to the instrument panel passen- ger airbag assy.
(d)Connect the negative (±) terminal cable to the battery, and wait for at least 2 seconds.
(e)Turn the ignition switch to the ON position, and wait for at least 10 seconds.
(f)Clear the stored DTCs in the memory (See page 05±1184).
(g) Turn the ignition switch to the LOCK position.
(h) Turn the ignition switch to the ON position, and wait for at least 10 seconds.
(i)Check the DTCs (See page 05±1184). OK:
DTC B1188/56 is not output.
HINT:
Codes other than code B1188/56 may be output at this time, but
they are not related to this check.
NG REPLACE INSTRUMENT PANEL PASSENGER AIR BAG ASSY
OK
4 USE SIMULATION METHOD TO CHECK
NG Go to step 1
OK
REPLACE ALL SRS COMPONENTS INCLUDING WIRE HARNESS

± DIAGNOSTICSAUDIO SYSTEM
05±1419
AVENSIS REPAIR MANUAL (RM1018E)
NOISE OCCURS
INSPECTION PROCEDURE
1 CHECK OF SPEAKER INSTALLATION
(a) Check the speaker installation condition.
(1) Check that each speaker is securely installed.
Standard: Malfunction disappears.
HINT:
The radio is equipped with the noise prevention system that works against only the excessively large noise,
thereby excessively large noise do not occur in the radio. If large noise occurs, check whether or not the earth
on the antenna installation part and the proper noise±prevention equipment are all installed, and whether
or not the improper wiring is held.
Condition in which noise occursNoise type
Depressing the acceleration pedal increases noise, and stopping the engine
erases the noise immediately.Alternator noise
Noise occurs during the A/C or the heater operation.Blower motor noise
Rapid acceleration during the drive on the unpaved road or after the IG
switch is turned ON makes noise.Fuel pump noise
Pressing and then releasing the horn switch, and keeping pressing the horn
switch makes noise.Horn noise
Stopping the engine erases the small noise that has been heard.Ignition noise
Noise occurs in turn with the blink of the turn signal flash.Flasher noise
Noise occurs during the window washer operation.Washer noise
Noise occurs during the engine running, and it continues to occur after the
engine is stopped.Water temperature sensor noise
Noise occurs during the wiper operation.Wiper noise
Noise occurs when the brake pedal is depressed.Stop light switch noise
Others.Static electricity on the vehicle
HINT:

Identify the condition under which the noise occurs, and check the noise filter on the related part.

Make sure first that there is no noise from outside. Failing to do so makes the noise occurrence source
detection impossible and leads to misunderstanding.

The noise should be removed in descending order of loudness.
NG INSTALL IT PROPERLY
OK
IDENTIFICATION OF NOISE SOURCE
054A1±09

05±1454
± DIAGNOSTICSNAVIGATION SYSTEM
AVENSIS REPAIR MANUAL (RM1018E) DTCCountermeasure and inspected parts Condition Diagnosis item
DE
*3Slave Reset (Momentary Interruption)After engine start, slave component has
been disconnected.
Check harness for power supply system of
component shown by sub±code.

Check harness for communication system
of component shown by sub±code.
DF
*5Master ErrorDue to defective condition of component
with a display, master function is switched to
audio equipment.
Error occurs in communication between
sub±master (audio) and master component.
Check harness for power supply of multi±
display (CRT display) display.

Check harness for communication system
of multi±display (CRT display) display.
E0
*1Registration Completion Instruction ErrorºRegistration Completion Instructionº com-
mand from master cannot be received.Since this DTC is provided for engineering
purpose, it may be detected when no actual
failure exists.
E1
*1Audio processor ON errorWhile source equipment is operating, AMP
output is stopped.
Check harness for power supply of radio
receiver assy.

Check harness for communication system
of radio receiver assy.
E2ON/OFF Instruction Parameter ErrorError occurs in ON/OFF controlling com-
mand from multi±display (CRT display) dis-
play.Replace multi±display (CRT display) display.
E3
*1Registration Request TransmissionRegistration Request command is output
from slave component.
Receiving Connection Check Instruction,
Registration Request command is output
from sub±master component.Since this DTC is provided for engineering
purpose, it may be detected when no actual
failure exists.
E4
*1Multiple Frame AbortMultiple frame transmission is aborted.Since this DTC is provided for engineering
purpose, it may be detected when no actual
failure exists.
(b) Logical address: 21 (Switch)
DTCDiagnosis itemConditionCountermeasure and inspected parts
10Panel Switch ErrorError in panel switch input part is detected.
(Error in switch control part, or internal com-
munication error with switch control part is
detected.)
Inspect all switches on panel switch test
screen in display check mode. If any of
them does not function, replace radio re-
ceiver assy.

If all switches function without problem, ob-
serve them for a while.
11Touch Switch ErrorError in touch switch sensor is detected.
(Light level of LED is detected to be less
than a fixed value.)
Inspect all touch switches on touch switch
test screen in display check mode. If any
of lines do not react, replace radio receiver
assy.

If all of vertical and horizontal lines react
normally, observe them for a while.
(c) Logical address: 61 (Cassette tape player's switch)
DTCDiagnosis itemConditionCountermeasure and inspected parts
40Mechanical Error of MediaMalfunction due to mechanical failure is
identified.
Or cassette tape is cut or entangled.
Inspect cassette tape.

Replace radio receiver assy.
(d) Logical address: 62 (CD player)
DTCDiagnosis itemDiagnosis contentCountermeasure and inspected parts
42No Disc ReadoutDisc cannot be read.
Inspect CD.

Replace radio receiver assy.
44CD player ErrorError is detected in CD player.Replace radio receiver assy.
45EJECT ErrorMagazine cannot be ejected.Replace radio receiver assy.
46Scratched/Reversed DiscScratches or dirt is found on CD surface or
CD is set upside down.Inspect CD.

05±1456
± DIAGNOSTICSNAVIGATION SYSTEM
AVENSIS REPAIR MANUAL (RM1018E) DTCCountermeasure and inspected parts Condition Diagnosis item
DF
*4Master ErrorDue to defective condition of component
with a display, master function is switched to
audio equipment.
Error occurs in communication between
sub±master (audio) and master component.
Check harness for power supply of radio
receiver assy.

Check harness for communication system
of radio receiver assy.
E4
*1Multiple Frame AbortMultiple frame transmission is aborted.Since this DTC is provided for engineering
purpose, it may be detected when no actual
failure exists.
(b) Logical address: 58 (Navigation ECU)
DTCDiagnosis itemConditionCountermeasure and inspected parts
10Gyro ErrorError in gyro sensor is detected.
(Abnormal value in voltage output from sen-
sor is detected for more than specified time.)Replace navigation ECU.
42Map Disc ErrorData cannot be read for a certain time due
to scratches or dirt on disc surface or inser-
tion of wrong disc.Inspect disc and replace as necessary.
(Visually check disc surface and wipe it with
a soft cloth.)
43Vehicle Signal ErrorInput error of vehicle signal is detected.
(When no vehicle signal has been input for a
certain time.)
Inspect wire harness.

If wire harness is normal, replace naviga-
tion ECU.
(c) Logical address: 58 (GPS receiver)
DTCDiagnosis itemConditionCountermeasure and inspected parts
11GPS Receiver ErrorOperation error of GPS receiver is detected.At an outdoor site with a clear view, operate
the system to display GPS data. If GPS
mark is not properly displayed after 15 min.
or more, replace navigation ECU.
40GPS Antenna ErrorOpen condition of GPS antenna is detected.
(Open circuit, connection failure of connec-
tors, etc.)Inspect antenna and replace as necessary.
41Power Supply Error of GPS AntennaAbnormal voltage of GPS antenna cable or
short circuit is detected.
Inspect GPS antenna and replace as nec-
essary. (When no continuity is identified
between connector's core and sealed part,
GPS antenna is normal.)

If GPS antenna is normal, replace naviga-
tion ECU.
3. MULTI±DISPLAY (CRT DISPLAY) DISPLAY (Physical address: 110)
HINT:

*1: Even if no failure is detected, it may be stored depending on the battery condition or voltage for
starting an engine.

*2: It is stored in 180 sec. after the power supply connector is pulled out after engine start.

*3: It may be stored when the ignition switch is turned again after engine start.

*4: It may be stored when the ignition switch is turned in 1 min. again after engine start.
(a) Logical address: 01 (Communication control)
DTCDiagnosis itemDiagnosis contentCountermeasure and inspected parts
21ROM ErrorAbnormal condition of ROM is detected.Replace multi±display (CRT display) display.
22RAM ErrorAbnormal condition of RAM is detected.Replace multi±display (CRT display) display.
D5
*1Registered component disconnectedComponent shown by auxiliary code is or
was disconnected from system with ignition
switch ACC or ON.
Communication with component shown by
auxiliary code is not ensured when engine is
started.
Check harness for power supply of compo-
nent shown by auxiliary code.

Check harness for communication system
of component shown by auxiliary code.
D8
*2No response to connection checkComponent shown by auxiliary code is or
was disconnected from system after engine
start.
Check harness for power supply of compo-
nent shown by sub± code.

Check harness for communication system
of component shown by auxiliary code.

± DIAGNOSTICSNAVIGATION SYSTEM
05±1457
AVENSIS REPAIR MANUAL (RM1018E) DTCCountermeasure and inspected parts Diagnosis content Diagnosis item
D9
*1Last Mode ErrorComponent operated (sound and/or image
was provided) before engine stop is or was
disconnected with ignition switch ACC or
ON.
Check harness for power supply of compo-
nent shown by sub±code.

Check harness for communication system
of component shown by sub±code.
DB
*1Mode Status ErrorDual alarm is detected.
Check harness for power supply system of
component shown by sub±auxiliary code.

Check harness for communication system
of component shown by sub±code.
DC
*4Transmission ErrorTransmission to component shown by auxil-
iary code has been failed.
(This code does not necessarily mean actu-
al failure.)If same auxiliary code is recorded in order
component(s), check harness for power
supply and communication system of all
components shown by code.
DE
*3Slave Reset (Momentary Interruption)After engine start, slave component has
been disconnected.
DB
Check harness for power supply system of
component shown by sub±code.

Check harness for communication system
of component shown by sub±code.
E2ON/OFF Instruction Parameter ErrorError is detected in ON/OFF control com-
mand from radio receiver assy.Replace radio receiver assy.
E3
*1Registration Request Transmission
Registration Request command is output
from slave component.

By reception of connection check instruc-
tion, Registration Request command is out-
put from sub±master component.Since this DTC is provided for engineering,
it may be detected when no actual failure
exists.
(b) Logical address: 21 (Switch)
DTCDiagnosis itemDiagnosis contentCountermeasure and inspected parts
10Panel Switch ErrorError in panel switch input part is detected.
(Error in switch control part, or internal com-
munication error with switch control part is
detected.)
Inspect all switches on panel switch test
screen in display check mode. If any of
them do not function, replace multi±display
(CRT display) display.

If all switches function without problem, ob-
serve them for a while.
11Touch Switch ErrorError in touch switch sensor is detected.
(Light level of LED is detected to be less
than a fixed value.)
Inspect all touch switches on touch switch
test screen in display check mode. If any
of lines does not react, replace multi±dis-
play (CRT display) display.

If all of vertical and horizontal lines react
normally, observe them for a while.
(c) Logical address: 34 (Front passenger monitor)
DTCDiagnosis itemDiagnosis contentCountermeasure and inspected parts
10Error in Picture CircuitError in power supply system for picture cir-
cuit (abnormal voltage) is detected.Replace multi±display (CRT display) display.
11Back±light Error (No current)Decline in power output from inverter circuit
for back±light.Replace multi±display (CRT display) display.
12Back±light Error (Excess current)Excess power output from inverter circuit for
back±light.Replace multi±display (CRT display) display.

I34705
*1
*2
*3
*4*5*6
± DIAGNOSTICSNAVIGATION SYSTEM
05±1449
AVENSIS REPAIR MANUAL (RM1018E)
(a) Navigation Check
DisplayDescription
GPS Information/*1Information related to GPS is displayed
(updated every 1 second.).
Vehicle Sensors/*2
Vehicle signal information to be loaded in
the Navigation ECU is displayed (up-
dated every 1 second.).
Color Bar Check/*3
Color display of the Navigation ECU is
checked. (Compare with the Color Bar
Check results in the Display Check.)
Memory Copy / Paste/*4This function is not available.
Parts Information/*5Navigation program version and disc
version are displayed.
Menu/*6Pressing this switch returns to the ºDiag-
nosis MENUº.
HINT:

In the Navigation Check, the checks mentioned above
can be conducted.

The Navigation ECU operates each Navigation Check.