unified meter control unit INFINITI M35 2007 Factory Workshop Manual

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Revision: 2007 April2007 M35/M45 System Description .............................................. 134
AFS (ADAPTIVE FRONT-LIGHTING SYSTEM) . 135
HEADLAMP AUTO AIMING .............................. 136
OUTLINE ........................................................... 136
AFS OPERATION ............................................. 137
HEADLAMP AUTO AIMING OPERATION ........ 139
CAN COMMUNICATION SYSTEM DESCRIP-
TION .................................................................. 139
CAN COMMUNICATION UNIT ......................... 139
Component Parts Description .............................. 140
AFS CONTROL UNIT ....................................... 140
SWIVEL ACTUATOR ........................................ 140
AIMING MOTOR ............................................... 140
AFS SWITCH .................................................... 141
HEIGHT SENSOR ............................................ 141
STEERING ANGLE SENSOR .......................... 141
IPDM E/R .......................................................... 141
ECM .................................................................. 141
TCM .................................................................. 141
UNIFIED METER AND A/C AMP. ..................... 141
COMBINATION METER ................................... 141
Schematic ............................................................ 142
Wiring Diagram — AFS — ................................... 143
Terminals and Reference Values for AFS Control
Unit ....................................................................... 149
How to Proceed with Trouble Diagnosis .............. 151
Preliminary Check ................................................ 151
CONSULT-II Function (ADAPTIVE LIGHT) .......... 152
CONSULT-II BASIC OPERATION ..................... 152
WORK SUPPORT (STEERING ANGLE SEN-
SOR ADJUSTMENT) ........................................ 152
WORK SUPPORT (LEVELIZER ADJUSTMENT)
. 152
SELF-DIAG RESULTS ...................................... 153
DATA MONITOR ............................................... 157
ACTIVE TEST ................................................... 159
Symptom Chart .................................................... 160
DTC B2503 SWIVEL ACTUATOR RH ................. 161
DTC B2504 SWIVEL ACTUATOR LH .................. 168
DTC B2514 HI SEN UNUSUAL RR ..................... 175
DTC B2521 ECU CIRC ........................................ 179
AFS Operation Check (Function Test) ................. 182
Auto Aiming Operation Check (Function Test) ..... 184
AFS Switch Does Not Operate ............................. 186
Auto Aiming Does Not Operate (Check Aiming
Motor System Circuit) ........................................... 188
AFS OFF Indicator Does Not Operate ................. 191
Removal and Installation of Steering Angle Sensor . 191
Removal and Installation of Front Combination
Lamp .................................................................... 191
Removal and Installation of AFS Control Unit ...... 192
REMOVAL ......................................................... 192
INSTALLATION ................................................. 192
Removal and Installation of AFS Switch .............. 192
REMOVAL ......................................................... 192
INSTALLATION ................................................. 192
Removal and Installation of Height Sensor .......... 193
REMOVAL ......................................................... 193
INSTALLATION ................................................. 193FRONT FOG LAMP ................................................194
Component Parts and Harness Connector Location .194
System Description ...............................................194
OUTLINE ...........................................................195
COMBINATION SWITCH READING FUNCTION .196
EXTERIOR LAMP BATTERY SAVER CONTROL .196
CAN Communication System Description ............196
CAN Communication Unit .....................................196
Schematic .............................................................197
Wiring Diagram — F/FOG — ................................198
Terminals and Reference Values for BCM ............202
Terminals and Reference Values for IPDM E/R ....203
How to Perform Trouble Diagnoses .....................203
Preliminary Check ................................................203
CHECK POWER SUPPLY AND GROUND CIR-
CUIT ..................................................................203
CONSULT-II Functions (BCM) ..............................204
CONSULT-II Functions (IPDM E/R) ......................204
Front Fog Lamps Do Not Illuminate (Both Sides) . 205
Front Fog Lamp Does Not Illuminate (One Side) . 208
Front Fog Lamps Do Not Turn OFF ......................209
Aiming Adjustment ................................................210
Bulb Replacement ................................................211
Removal and Installation ......................................211
REMOVAL .........................................................211
INSTALLATION .................................................211
TURN SIGNAL AND HAZARD WARNING LAMPS .212
Component Parts and Harness Connector Location .212
System Description ...............................................212
TURN SIGNAL OPERATION ............................212
HAZARD LAMP OPERATION ...........................213
COMBINATION SWITCH READING FUNCTION .214
CAN Communication System Description ............214
CAN Communication Unit .....................................214
Schematic .............................................................215
Wiring Diagram — TURN — .................................216
Terminals and Reference Values for BCM ............220
How to Perform Trouble Diagnoses .....................221
Preliminary Check ................................................222
CHECK POWER SUPPLY AND GROUND CIR-
CUIT ..................................................................222
CONSULT-II Functions (BCM) ..............................223
CONSULT-II BASIC OPERATION .....................223
DATA MONITOR ...............................................223
ACTIVE TEST ...................................................223
Turn Signal Lamp Does Not Operate ...................224
Hazard Warning Lamp Does Not Operate But Turn
Signal Lamp Operate ............................................226
Turn Signal Indicator Lamp Does Not Operate ....227
Bulb Replacement/Removal and Installation of Side
Turn Signal Lamp .................................................229
REMOVAL .........................................................229
INSTALLATION .................................................229
Bulb Replacement (Front Turn Signal Lamp) .......229
Bulb Replacement (Rear Turn Signal Lamp) ........229
Removal and Installation of Front Turn Signal Lamp .229
Removal and Installation of Rear Turn Signal Lamp .229
LIGHTING AND TURN SIGNAL SWITCH ..............230
Removal and Installation ......................................230

LT-136
ACTIVE AFS
Revision: 2007 April2007 M35/M45
HEADLAMP AUTO AIMING
Headlamp auto aiming control automatically corrects vertical deviation of light axis that is brought by the
change of vehicle height with changing number of passenger and laden weight, and relieves dazzle to oncom-
ing vehicles.
AFS control unit determines the current vehicle conditions by each received signals, and sends commands to
the low beam headlamps to auto aiming. With the headlamps (HIGH/LOW) illuminated and engine running,
the low beam headlamps are operative by AFS control unit commands.
The height sensor is located on the left side of the rear suspension member and detects rear vehicle height
change by sensing the displacement of the rear suspension arm. And transmits a height sensor signal to the
AFS control unit.
With reference to the rear vehicle height under the empty condition, light axis of low beam with low rear vehi-
cle height is relatively higher than that with the empty condition. AFS control unit switches drive signal corrects
height of low beam axis to maintain height of light axis with empty condition.
Light axis of low beam with high rear vehicle height is relatively lower than that with empty condition. Light axis
of low beam with empty condition is set as upper limit of headlamp auto aiming control operation. Control to
correct deviation is not performed when light axis of low beam gets relatively higher than that with empty con-
dition. Timing of control is switched in accordance with driving conditions.

Headlamp auto aiming operation
*1: Included high beam illuminated
*2: Control timing of drive signal is switched by vehicle speed and accelerating/decelerating vehicle.
*3: Control is performed without regard to the condition of AFS switch. Headlamp auto aiming control function cannot be cancelled.
OUTLINE
Power is supplied
When the ignition switch is ON or START position, power is supplied

through 10A fuse [No.12, located in fuse block (J/B)]

to AFS control unit terminal 1

to front combination lamp LH and RH terminal 13

to AFS switch terminal 1

to unified meter and A/C amp. terminal 53.
Ground is supplied

to AFS control unit terminal 25

through grounds M16 and M70,

to front combination lamp LH and RH terminal 11

through grounds E22 and E43.
SKIB4707E
Operating range With 18-inch wheel (Reference value) With 19-inch wheel (Reference value) Vehicle height
A 0 mm (Standard position) 0 mm (Standard position) Unloaded vehicle position
B Approx. 200 mm (7.9 in) Approx.180 mm (7.1 in) Low
Low beam status Vehicle speed Engine speed AFS switch
Illuminated*
1Control switch by driving conditions*2While engine running
Irrespective*3

LT-138
ACTIVE AFS
Revision: 2007 April2007 M35/M45

through front combination lamp RH terminal 21.
Swivel position sensor detects swivel angle during ignition switch ON, and transmits swivel position sensor
signals to the AFS control unit:
When ignition switch is turn to ON position, power is supplied

to front combination lamp RH terminal 15

through AFS control unit terminal 4.
When ignition switch is turn to ON position, swivel position sensor input signal is supplied

to AFS control unit terminal 9

through front combination lamp RH terminal 14.
Ground is supplied

to front combination lamp RH terminal 19

through AFS control unit terminal 2.
The low beam headlamp RH starts to swivel to the right.
The swivel motor driving signals are blocked and the swivel motion stops when the steering angle reaches
approximately more than 80 degrees (predetermined). The low beam headlamp will not swivel any further no
matter how further right. As the steering wheel is turned back to the left, the swivel motor driving signals (both
1-phase and 2-phase) will be reversed, causing low beam headlamp RH to start swiveling to the left. When
steering angle becomes smaller than predetermined value, the low beam headlamp is set in the straight-
ahead position, swivel motor driving signals are blocked and low beam headlamps stop swiveling.
AFS OFF INDICATOR OPERATION
In response to the state of control, AFS control unit switches com-
mands of AFS off indicator signal sent to unified meter and A/C amp.
via CAN communication; and then turns on/off or blinks AFS off indi-
cator lamp built in the combination meter depending on the following
condition.

Bulb check operation
AFS off indicator lamp is turned off after illuminating for one sec-
ond as a bulb check for AFS off indicator lamp when turn ignition
switch ON is detected.
NOTE:
AFS off indicator lamp is turned off without a lapse of one sec-
ond when start of the engine is detected.

AFS switch operation
AFS off indicator lamp is illuminated while AFS switch is OFF.
AFS off indicator lamp is turned off while AFS switch is ON.

System warning operation
AFS off indicator lamp illuminates at intervals of approximately one second when AFS control unit detects
any specific DTC (diagnosis trouble code), or when unified meter and A/C amp. cannot receive AFS off
indicator signals.
NOTE:
Unified meter and A/C amp. transmits a command to combination meter to blink AFS off indicator lamp
when they cannot receive AFS off indicator signal.
SWIVEL ACTUATOR INITIALIZATION
AFS control unit performs swivel operation to initialize swivel actuator when start of the engine is detected.
Straight-ahead position of low beam headlamps is adjusted by turning low beam headlamps to outside vehicle
with specified swivel angle after turning it to the center of vehicle and making sure that it reaches the stopper.
Swivel actuator initialization shall be performed every time when start of the engine is detected.
SKIB4765E

ACTIVE AFS
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AFS SWITCH
AFS switch transmits state of ON/OFF as AFS switch signals to AFS
control unit.

AFS control unit performs AFS operation when AFS switch is
ON and turns off AFS off indicator lamp.

AFS control unit does not perform AFS operation when AFS
switch is OFF, and turns on AFS off indicator lamp.
HEIGHT SENSOR
The height sensor is located on the left side of the rear suspension
member and detects rear vehicle height change by sensing the dis-
placement of the rear suspension arm. And transmits a height sen-
sor signal to the AFS control unit.
STEERING ANGLE SENSOR
The steering angle sensor is located combination switch and detects
steering angle. And transmits a steering angle sensor signal to the
AFS control unit.
IPDM E/R
IPDM E/R detects ON/OFF state of low beam headlamps. It transmits a low beam state signal to the AFS con-
trol unit.
ECM
ECM transmits an engine speed signal to the AFS control unit.
TCM
TCM transmits an A/T position indicator signal to the AFS control unit.
UNIFIED METER AND A/C AMP.

Unified meter and A/C amp. transmits vehicle speed signals to the AFS control unit.

Unified meter and A/C amp. transmits AFS off indicator signals received from the AFS control unit to the
combination meter.
COMBINATION METER
Combination meter turns on/off or blinks built-in AFS off indicator lamp depending on AFS off indicator signal
received from unified meter and A/C amp.
SKIB4709E
Sensor angle Vehicle height
A Approx. –103° (Link stopper angle) Low side
B0° (Standard position)Approx. unloaded
vehicle position
CApprox. 46° (Link stopper angle) High side
SKIB4689E
SKIB4708E

ACTIVE AFS
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Turn ignition switch OFF not to change the vehicle height. Then turn ignition switch ON and per-
form levelizer adjustment again.

When “ADJUSTMENT COMPLETE” is displayed, and “NO DTC IS DETECTED” is displayed on
self-diagnosis results, levelizer adjustment is completed.

When “ADJUSTMENT COMPLETE” is displayed, and “B2514 HI SEN UNUSUAL” is displayed on
self-diagnosis results, refer to LT- 1 7 5 , "
DTC B2514 HI SEN UNUSUAL RR" .
7. Touch “END”.
8. Turn ignition switch OFF.
SELF-DIAG RESULTS
Operation Procedure
1. Touch “ADAPTIVE LIGHT” on “SELECT SYSTEM” screen.
2. Touch “SELF-DIAG RESULTS” on the “SELECT DIAG MODE” screen.
3. Check display content in self-diagnostic results.
CAUTION:
DTC B2503 and B2504 cannot be detected before the swivel operation. Thus, perform swivel operation
first, and then check the display in self-diagnostic results.
Description of DTC and Solutions after Detection
CONSULT-II can detect DTC (Diagnosis trouble code). The descriptions and solutions of DTC are listed
below.
Details of
error
indication
detected by
CONSULT-
IIConditions of error detectionFail-safe
1. Swivel operation
2. Auto aiming operation
3. AFS OFF indicator operation
4. CancellationReference
CAN
COMM CIR-
CUIT
[U1000]Any of several items below have errors.

TRANSMIT DIAG

Reception from ECM

Reception from unified meter and A/C amp.

Reception from TCM

Reception from steering angle sensor

Reception from IPDM E/R1. Stop the swivel motor RH and
LH when the malfunction
occurred.
2. Stop the aiming motors when the
malfunction occurred.
3. Flash at intervals of approx. 1
second when keeping error state
for 2 seconds or longer.
4. Turn ignition switch OFF.LAN-50, "
CAN
System Speci-
fication Chart".
CONTROL
UNIT (CAN)
[U1010]AFS control unit malfunctions.1. Stop the swivel motor RH and
LH when the malfunction
occurred.
2. Stop aiming motors when the
malfunction occurred.
3. Flash at intervals of approx. 1
second when keeping error state
for 2 seconds or longer.
4. Turn ignition switch OFF.Replace
AFS control
unit. LT-192

LT-160
ACTIVE AFS
Revision: 2007 April2007 M35/M45
Symptom ChartNKS003QN
CAUTION:
The low beam headlamps performs small movements when AFS control unit detects the engine start.
This is normal with initialization of swivel actuator by AFS control unit.
SymptomAFS OFF
indicatorCausal system Reference

AFS operates, but cannot judge normal/
abnormal.
(AFS function test)NormalCheck swivel operation.LT- 1 8 2 , "AFS
Operation
Check (Func-
tion Test)"
Check steering angle sensor neutral point (straight-ahead
position).

Auto aiming operates, but cannot judge
normal/abnormal.
(Auto aiming function test)NormalCheck auto aiming operation.LT- 1 8 4 , "Auto
Aiming Opera-
tion Check
(Function
Test)"
Check height sensor signal value recognized by AFS con-
trol unit at unloaded vehicle position.
Check height sensor signal and aiming motor drive signal.

Neither AFS operates nor auto aiming
operates.BlinkingCheck AFS control unit self-diagnostic results. LT- 1 5 3 ,
"SELF-DIAG
RESULTS"
Check AFS control unit power supply and ground circuit.
NOTE:
Check only when “ADAPTIVE LIGHT” is not displayed on
CONSULT-II “SELECT SYSTEM” screen.LT- 1 5 1 , "Pre-
liminary
Check"

AFS does not operate.
(Auto aiming operation is normal.)Blinking Check AFS control unit self-diagnostic results. LT- 1 5 3 ,
"SELF-DIAG
RESULTS"
Illuminated Check AFS switch system circuit.LT- 1 8 6 , "
AFS
Switch Does
Not Operate"

Auto aiming does not operate.
(AFS operation is normal.)NormalCheck AFS control unit self-diagnostic results. LT- 1 5 3 ,
"SELF-DIAG
RESULTS"
Check aiming motor system circuit.LT- 1 8 8 , "
Auto
Aiming Does
Not Operate
(Check Aiming
Motor System
Circuit)"

Auto aiming operates in the reverse way.
(Lowering vehicle height angles light
axis up.)Normal Replace AFS control unit.LT- 1 9 2 , "Removal and
Installation of
AFS Control
Unit"

AFS OFF indicator does not illuminate.
(AFS operation and auto aiming opera-
tion are normal.)Not
illuminatedCheck circuit between unified meter and A/C amp. and
combination meter.LT- 1 9 1 , "
AFS
OFF Indicator
Does Not
Operate"
AFS OFF indicator blinks.
(AFS operation and auto aiming opera-
tion are normal.)BlinkingCheck receive state of AFS off indicator signal from uni-
fied meter and A/C amp.

AFS cannot be cancelled.
(AFS switch does not operate.)Normal Check AFS switch system circuit.LT- 1 8 6 , "AFS
Switch Does
Not Operate"

ACTIVE AFS
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AFS OFF Indicator Does Not OperateNKS003QW
1. CHECK DIAGNOSIS RESULT (AFS CONTROL UNIT)
Select “ADAPTIVE LIGHT” on CONSULT-II. Select “SELF-DIAG
RESULTS” on “SELECT DIAG MODE” screen.
Is DTC detected?
YES >> Refer to LT- 1 5 3 , "SELF-DIAG RESULTS" .
NO >> GO TO 2.
2. CHECK DIAGNOSIS RESULT (UNIFIED METER AND A/C AMP.)
Select “METER A/C AMP” on CONSULT-II. Select “SELF-DIAG
RESULTS” on “SELECT DIAG MODE” screen.
Is DTC detected?
YES >> Refer to DI-31, "SELF-DIAG RESULTS" .
NO >> GO TO 3.
3. CHECK AFS OFF INDICATOR SIGNAL (UNIFIED METER AND A/C AMP.)
Check “AFS OFF IND” in “Data Monitor” according to AFS switch
operation.
OK or NG
OK >> Replace combination meter.
NG >> Replace unified meter and A/C amp.
Removal and Installation of Steering Angle SensorNKS003QX
Refer to BRC-60, "STEERING ANGLE SENSOR" .
Removal and Installation of Front Combination LampNKS003QY
Refer to LT- 7 5 , "Removal and Installation" .
PKIA6866E
PKIA6866E
Condition “AFS OFF IND”
AFS switch is OFF. ON
AFS switch is ON. OFF
SKIB4971E

LT-196
FRONT FOG LAMP
Revision: 2007 April2007 M35/M45
FOG LAMP OPERATION
The fog lamp switch is built in combination switch. The lighting switch must be in 2ND position or AUTO posi-
tion (headlamp is ON) and fog lamp switch must be ON for fog lamp operation.
With the fog lamp switch in the ON position, the CPU located in IPDM E/R grounds coil side of the fog lamp
relay. Fog lamp relay then directs power

through IPDM E/R terminal 37

to front fog lamp RH terminal 1,

through IPDM E/R terminal 36

to front fog lamp LH terminal 1.
Ground is supplied

to front fog lamp RH terminal 2

through grounds E22 and E43,

to front fog lamp LH terminal 2

through grounds E22 and E43.
With power and grounds supplied, the front fog lamps illuminate.
The unified meter and A/C amp. that received the front fog lamp request signal by BCM across the CAN com-
munication makes a front fog lamp indicator lamp turn on in combination meter.
COMBINATION SWITCH READING FUNCTION
Refer to BCS-3, "COMBINATION SWITCH READING FUNCTION" .
EXTERIOR LAMP BATTERY SAVER CONTROL
When the combination switch (lighting switch) is in the 2ND position (ON), and the ignition switch is turned
from ON or ACC to OFF, the battery saver control function is activated.
Under this condition, the headlamps remain illuminated for 5 minutes, then the headlamps are turned off.
Exterior lamp battery saver control mode can be changed by the function setting of CONSULT-II.
CAN Communication System DescriptionNKS003R4
CAN (Controller Area Network) is a serial communication line for real time application. It is an on-vehicle mul-
tiplex communication line with high data communication speed and excellent error detection ability. Many elec-
tronic control units are equipped onto a vehicle, and each control unit shares information and links with other
control units during operation (not independent). In CAN communication, control units are connected with 2
communication lines (CAN H line, CAN L line) allowing a high rate of information transmission with less wiring.
Each control unit transmits/receives data but selectively reads required data only.
CAN Communication UnitNKS003R5
Refer to LAN-50, "CAN System Specification Chart" .

LT-214
TURN SIGNAL AND HAZARD WARNING LAMPS
Revision: 2007 April2007 M35/M45

to BCM terminal 52

to combination meter terminals 9, 10 and 11

to unified meter and A/C amp. terminals 55 and 71

through grounds M16 and M70.
BCM then supplies power

through BCM terminal 45

to front combination lamp LH (turn signal) terminal 10

to side turn signal lamp LH terminal 1

to rear combination lamp LH (turn signal) terminal 3,

through BCM terminal 46

to front combination lamp RH (turn signal) terminal 10

to side turn signal lamp RH terminal 1

to rear combination lamp RH (turn signal) terminal 3.
Ground is supplied

to front combination lamp LH (turn signal) terminal 9

to front combination lamp RH (turn signal) terminal 9

to side turn signal lamp LH terminal 2

to side turn signal lamp RH terminal 2

through grounds E22 and E43,

to rear combination lamp LH (turn signal) terminal 4

to rear combination lamp RH (turn signal) terminal 4

through grounds B5, B40 and B131.
The BCM also supplies input to unified meter and A/C amp. terminals 56 and 72 across the CAN communica-
tion lines.
The unified meter and A/C amp. which received the turn indicator signal makes the left and right turn signal
indicator turn on in combination meter.
With power and input supplied, the BCM controls the flashing of the hazard warning lamps.
COMBINATION SWITCH READING FUNCTION
Refer to BCS-3, "COMBINATION SWITCH READING FUNCTION" .
CAN Communication System DescriptionNKS003RM
CAN (Controller Area Network) is a serial communication line for real time application. It is an on-vehicle mul-
tiplex communication line with high data communication speed and excellent error detection ability. Many elec-
tronic control units are equipped onto a vehicle, and each control unit shares information and links with other
control units during operation (not independent). In CAN communication, control units are connected with 2
communication lines (CAN H line, CAN L line) allowing a high rate of information transmission with less wiring.
Each control unit transmits/receives data but selectively reads required data only.
CAN Communication UnitNKS003RN
Refer to LAN-50, "CAN System Specification Chart" .

ILLUMINATION
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ILLUMINATIONPFP:27545
System DescriptionNKS003TH
Control of the illumination lamps operation is dependent upon the position of the lighting switch (combination
switch). When the lighting switch is placed in the 1ST or 2ND position (or if the auto light system is activated)
the BCM (body control module) receives input signal requesting the illumination lamps to illuminate. This input
signal is communicated to the IPDM E/R (intelligent power distribution module engine room) across the CAN
communication lines. The CPU (central processing unit) located in the IPDM E/R controls the tail lamp relay
coil. This relay, when energized, directs power to the illumination lamps, which then illuminate.
OUTLINE
Power is supplied at all times

through 15A fuse (No. 71, located in IPDM E/R)

to tail lamp relay, located in IPDM E/R, and

to CPU located in IPDM E/R,

through 15A fuse (No. 78, located in IPDM E/R)

to CPU located in IPDM E/R,

through 50A fusible link (letter F, located in fuse, fusible link and relay block)

to BCM terminal 55,

through 10A fuse [No. 21, located in fuse block (J/B)]

to BCM terminal 42 and

to combination meter terminal 23,

through 10A fuse [No. 19, located in fuse block (J/B)]

to unified meter and A/C amp. terminal 54,

through 10A fuse [No. 22, located in fuse block (J/B)]

to intelligent key unit terminals 1, 41 and 57.
With the ignition switch in the ON or START position, power is supplied

through 15A fuse [No. 1, located in fuse block (J/B)]

to BCM terminal 38,

through 10A fuse [No. 14, located in fuse block (J/B)]

to combination meter terminal 12,

through 10A fuse [No. 12, located in fuse block (J/B)]

to unified meter and A/C amp. terminal 53 and

to rear sunshade cancel relay terminal 1.
With the ignition switch in the ACC or ON position, power is supplied

through 10A fuse [No. 6, located in fuse block (J/B)]

to BCM terminal 11

to unified meter and A/C amp. terminal 41 and

to combination meter terminal 2.
Ground is supplied

to BCM terminal 52

to unified meter and A/C amp. terminals 55 and 71

to combination meter terminals 9, 10, and 11

to Intelligent Key unit terminals 20, 40, 56 and 72, and

to illumination control switch terminal 3

through grounds M16 and M70,

to IPDM E/R terminals 38 and 51

through grounds E22 and E43.