ECU INFINITI FX35 2008 Owner's Manual

TROUBLE DIAGNOSISAT-91
< SERVICE INFORMATION >
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DTC WORK SUPPORT MODE
Display Items List
Diagnosis Procedure without CONSULT-IIIINFOID:0000000001327164
OBD-II SELF-DIAGNOSTIC PROCEDURE (WITH GST)
Refer to EC-125, "Generic Scan Tool (GST) Function" (for VQ35DE) or EC-704, "Generic Scan Tool (GST)
Function" (for VK45DE).
OBD-II SELF-DIAGNOSTIC PROCEDURE (NO TOOLS)
Refer to EC-71, "Malfunction Indicator Lamp (MIL)" (for VQ35DE) or EC-649, "Malfunction Indicator Lamp
(MIL)" (for VK45DE).
TCM SELF-DIAGNOSTIC PROCEDURE (NO TOOLS)
Description
When the ignition switch is turned ON, the indicator la mp lights up for 2 seconds. As a method for locating the
suspect circuit, when the self-diagnostics start signal is input, the memory for the malfunction location is output
and the A/T CHECK indicator lamp flashes to display the corresponding DTC.
Diagnostic Procedure
Voltage (V) — — Displays the value measured by the voltage
probe.
Frequency (Hz) — —
The value measured by the pulse probe is dis-
played.
DUTY-HI (high) (%) — —
DUTY-LOW (low) (%) — —
PLS WIDTH-HI (ms) — —
PLS WIDTH-LOW (ms) — — Monitored item (Unit)
Select Monitor Item
Remarks
ECU IN-
PUT SIG- NALS MAIN SIG-
NALS SELEC-
TION
FROM
MENU
DTC work support item Description Check item
1ST GR FUNCTN P0731 Following items for “1st gear function” can be confirmed.
 Self-diagnosis status (whether the diagnosis is being performed
or not)
 Self-diagnostic results (OK or NG)
 Input clutch solenoid valve
 Front brake solenoid valve
 Direct clutch solenoid valve
 High and low reverse clutch solenoid valve
 Each clutch
 Hydraulic control circuit
2ND GR FUNCTN P0732
Following items for “2nd gear function” can be confirmed.
 Self-diagnosis status (whether the diagnosis is being performed
or not)
 Self-diagnostic results (OK or NG)
3RD GR FUNCTN P0733 Following items for “3rd gear function” can be confirmed.
 Self-diagnosis status (whether the diagnosis is being performed
or not)
 Self-diagnostic results (OK or NG)
4TH GR FUNCTN P0734 Following items for “4th gear function” can be confirmed.
 Self-diagnosis status (whether the diagnosis is being performed
or not)
 Self-diagnostic results (OK or NG)
5TH GR FUNCTN P0735 Following items for “5th gear function” can be confirmed.
 Self-diagnosis status (whether the diagnosis is being performed
or not)
 Self-diagnostic results (OK or NG)
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AT-94
< SERVICE INFORMATION >
DTC U1000 CAN COMMUNICATION LINE
DTC U1000 CAN COMMUNICATION LINE
DescriptionINFOID:0000000001327165
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 malfunction detection ability.
Many electronic control units are equipped onto a vehi cle, and each control unit shares information and links
with other control units during operation (not independent ). In CAN communication, control units are con-
nected with 2 communication lines (CAN-H line, CAN-L line) allowing a high rate of information transmission
with less wiring. Each control unit transmits/recei ves data but selectively reads required data only.
On Board Diagnosis LogicINFOID:0000000001327166
Diagnostic trouble code “U1000 CAN COMM CIRCUIT” with CONSULT-III or 17th judgement flicker without
CONSULT-III is detected when TCM cannot communicate to other control units.
Possible CauseINFOID:0000000001327167
Harness or connectors
(CAN communication line is open or shorted.)
DTC Confirmation ProcedureINFOID:0000000001327168
NOTE:
If “DTC Confirmation Procedure” has been previously performed, alw ays turn ignition switch OFF and
wait at least 10 seconds before performing the next test.
After the repair, perform the following proc edure to confirm the malfunction is eliminated.
WITH CONSULT-III
1. Turn ignition switch ON.
2. Select “ECU INPUT SIGNALS” or “MAIN SIGNAL S” in “DATA MONITOR” mode for “TRANSMISSION”
with CONSULT-III.
3. Start engine and wait for at least 6 seconds.
4. If DTC is detected, go to AT-96, "
Diagnosis Procedure".
WITH GST
Follow the procedure “WITH CONSULT-III”.
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DTC P0615 START SIGNAL CIRCUITAT-97
< SERVICE INFORMATION >
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DTC P0615 START SIGNAL CIRCUIT
DescriptionINFOID:0000000001327171
TCM prohibits cranking other than at “P” or “N” position.
CONSULT-III Reference Value in Data Monitor ModeINFOID:0000000001327172
On Board Diagnosis LogicINFOID:0000000001327173
Diagnostic trouble code “P0615 STARTER RELAY/CIRC” wit h CONSULT-III or 14th judgement flicker without
CONSULT-III is detected when starter relay is switc hed ON other than at “P” or “N” position. (Or when
switched OFF at “P” or “N” position).
Possible CauseINFOID:0000000001327174
 Harness or connectors (Starter relay and TCM circuit is open or shorted.)
 Starter relay circuit
DTC Confirmation ProcedureINFOID:0000000001327175
CAUTION:
Always drive vehicle at a safe speed.
NOTE:
If “DTC Confirmation Procedure” has been previously performed, alw ays turn ignition switch OFF and
wait at least 10 seconds before performing the next test.
After the repair, perform the following procedure to confirm the malfunction is eliminated.
WITH CONSULT-III
1. Turn ignition switch ON.
2. Select “SELECTION FROM MENU” in “DATA MONI TOR” mode for “TRANSMISSION” with CONSULT-III
and check monitor “STARTER RELAY” ON/OFF.
3. Start engine.
4. Drive vehicle for at least 2 consecutive seconds.
5. If DTC is detected, go to AT-99, "
Diagnosis Procedure".
Item name Condition Display value
STARTER RELAY Selector lever in “N
” and “P” positions. ON
Selector lever in other positions. OFF
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DTC P0700 TCMAT-101
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DTC P0700 TCM
DescriptionINFOID:0000000001327178
The TCM consists of a microcomputer and connectors for signal input and output and for power supply. The
TCM controls the A/T.
On Board Diagnosis LogicINFOID:0000000001327179
Diagnostic trouble code “P0700 TCM” with CONSULT-II I is detected when TCM is malfunctioning.
Possible CauseINFOID:0000000001327180
TCM.
DTC Confirmation ProcedureINFOID:0000000001327181
NOTE:
If “DTC Confirmation Procedure” has been previously performed, alw ays turn ignition switch OFF and
wait at least 10 seconds before performing the next test.
After the repair, perform the following procedure to confirm the malfunction is eliminated.
WITH CONSULT-III
1. Turn ignition switch ON.
2. Select “ECU INPUT SIGNALS” or “MAIN SIGNAL S” in “DATA MONITOR” mode for “TRANSMISSION”
with CONSULT-III.
3. Touch “START”.
4. Start engine.
5. Run engine for at least 2 cons ecutive seconds at idle speed.
6. If DTC is detected, go to AT-101, "
Diagnosis Procedure".
WITH GST
Follow the procedure “WITH CONSULT-III”.
Diagnosis ProcedureINFOID:0000000001327182
1.CHECK DTC
With CONSULT-III
1. Turn ignition switch ON.
2. Select “SELF DIAG RESULTS” mode fo r “TRANSMISSION” with CONSULT-III.
3. Touch “ERASE”.
4. Turn ignition switch OFF and wait at least 10 seconds.
5. Perform AT-101, "
DTC Confirmation Procedure".
Is the
“P0700 TCM” displayed again?
YES >> Replace the control valve with TCM. Refer to AT-215, "Control Valve with TCM and A/T Fluid Tem-
perature Sensor 2".
NO >> INSPECTION END
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AT-102
< SERVICE INFORMATION >
DTC P0705 PARK/NEUTRAL POSITION SWITCH
DTC P0705 PARK/NEUTRAL POSITION SWITCH
DescriptionINFOID:0000000001327183
 The PNP switch includes a transmission range switch.
 The transmission range switch detects the selector lever position and sends a signal to the TCM.
CONSULT-III Reference Value in Data Monitor ModeINFOID:0000000001327184
On Board Diagnosis LogicINFOID:0000000001327185
Diagnostic trouble code “P0705 PNP SW/CIRC” with CONS ULT-III or 9th judgement flicker without CON-
SULT-III is detected under the following conditions.
 When TCM does not receive the correct voltage signal from the PNP switches 1, 2, 3 and 4 based on the
gear position.
 When no other position but “P” position is detected from “N” position.
Possible CauseINFOID:0000000001327186
 Harness or connectors (PNP switches 1, 2, 3 and 4 and TCM circuit is open or shorted.)
 PNP switches 1, 2, 3 and 4
DTC Confirmation ProcedureINFOID:0000000001327187
CAUTION:
Always drive vehicle at a safe speed.
NOTE:
If “DTC Confirmation Procedure” has been previously performed, alw ays turn ignition switch OFF and
wait at least 10 seconds before performing the next test.
After the repair, perform the following proc edure to confirm the malfunction is eliminated.
WITH CONSULT-III
1. Turn ignition switch ON.
2. Select “ECU INPUT SIGNALS” or “MAIN SIGNAL S” in “DATA MONITOR” mode for “TRANSMISSION”
with CONSULT-III.
3. Touch “START”.
4. Start engine.
5. Drive vehicle and maintain the following conditions for at least 2 consecutive seconds. ACCELE POSI: More than 1.0/8
6. If DTC is detected, go to AT-103, "
Diagnosis Procedure".
WITH GST
Follow the procedure “WITH CONSULT-III”.
Item name Condition Display value
SLCT LVR POSI Selector lever in “N”
and “P” positions. N/P
Selector lever in “R” position. R
Selector lever in “D” position. D
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AT-106
< SERVICE INFORMATION >
DTC P0717 TURBINE REVOLUTION SENSOR
DTC P0717 TURBINE REVOLUTION SENSOR
DescriptionINFOID:0000000001327190
The turbine revolution sensor detects input shaft rpm (revolutions per minute). It is located on the input side of
the automatic transmission. Monitors revolution of sensor 1 and sensor 2 for non-standard conditions.
CONSULT-III Reference Value in Data Monitor ModeINFOID:0000000001327191
On Board Diagnosis LogicINFOID:0000000001327192
Diagnostic trouble code “P0717 TURBINE REV S/CIRC” with CONSULT-III or 11th judgement flicker without
CONSULT-III is detected under the following conditions.
 When TCM does not receive the proper voltage signal from the sensor.
 When TCM detects an irregularity only at position of 4th gear for turbine revolution sensor 2.
Possible CauseINFOID:0000000001327193
 Harness or connectors
(Sensor circuit is open or shorted.)
 Turbine revolution sensor 1 and/or 2
DTC Confirmation ProcedureINFOID:0000000001327194
CAUTION:
 Always drive vehicle at a safe speed.
 Be careful not to rev engine into the red zone on the tachometer.
NOTE:
If “DTC Confirmation Procedure” has been previously performed, alw ays turn ignition switch OFF and
wait at least 10 seconds before performing the next test.
After the repair, perform the following proc edure to confirm the malfunction is eliminated.
WITH CONSULT-III
1. Turn ignition switch ON.
2. Select “SELECTION FROM MENU” in “DATA MONI TOR” mode for “TRANSMISSION” with CONSULT-III
and check monitor “VHCL/S SE-A/T”, “ENGINE SPE ED”, “ACCELE POSI”, “SLCT LVR POSI” and
“GEAR”.
3. Touch “START”.
4. Start engine and maintain the following conditions for at least 5 consecutive seconds. VHCL/S SE-A/T: 40 km/h (25 MPH) or more
ENGINE SPEED: 1,500 rpm or more
ACCELE POSI: More than 0.5/8
SLCT LVR POSI: “D” position
GEAR (Turbine revolution sensor 1): “4” or “5” position
GEAR (Turbine revolution sensor 2): All positions
Driving location: Driving the vehicle uphill (increased engine load) will help maintain the driving
conditions required for this test.
5. If DTC is detected, go to AT-106, "
Diagnosis Procedure".
WITH GST
Follow the procedure “WITH CONSULT-III”.
Diagnosis ProcedureINFOID:0000000001327195
1.CHECK INPUT SIGNAL
With CONSULT-III
1. Start engine.
2. Select “ECU INPUT SIGNALS” in “DATA MONI TOR” mode for “TRANSMISSION” with CONSULT-III.
Item name Condition Display value
TURBINE REV During driving (lock-up ON) Approximately matches the engine speed.
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AT-108
< SERVICE INFORMATION >
DTC P0720 VEHICLE SPEED SENSOR A/T (REVOLUTION SENSOR)
DTC P0720 VEHICLE SPEED SENSOR A/T (REVOLUTION SENSOR)
DescriptionINFOID:0000000001327196
The revolution sensor detects the revolution of the parking gear and emits a pulse signal. The pulse signal is
sent to the TCM which converts it into vehicle speed.
CONSULT-III Reference Value in Data Monitor ModeINFOID:0000000001327197
On Board Diagn osis LogicINFOID:0000000001327198
Diagnostic trouble code “P0720 VEH SPD SEN/CIR AT” wit h CONSULT-III or 1st judgement flicker without
CONSULT-III is detected under the following conditions.
 When TCM does not receive the proper voltage signal from the sensor.
 After ignition switch is turned ON, irregular signal i nput from vehicle speed sensor MTR before the vehicle
starts moving.
Possible CauseINFOID:0000000001327199
 Harness or connectors (Sensor circuit is open or shorted.)
 Revolution sensor
 Vehicle speed sensor MTR
DTC Confirmation ProcedureINFOID:0000000001327200
CAUTION:
 Always drive vehicle at a safe speed.
 Be careful not to rev engine into the red zone on the tachometer.
NOTE:
If “DTC Confirmation Procedure” has been previously performed, alw ays turn ignition switch OFF and
wait at least 10 seconds before performing the next test.
After the repair, perform the following proc edure to confirm the malfunction is eliminated.
WITH CONSULT-III
1. Turn ignition switch ON.
2. Select “ECU INPUT SIGNALS” in “DATA MONI TOR” mode for “TRANSMISSION” with CONSULT-III.
3. Touch “START”.
4. Drive vehicle and check for an increase of “VHCL/ S SE-A/T” value in response to “VHCL/S SE-MTR”
value.
If the check result is NG, go to AT-110, "
Diagnosis Procedure".
If the check result is OK, go to following step.
5. Select “SELECTION FROM MENU” in “DATA MONI TOR” mode for “TRANSMISSION” with CONSULT-III
and check monitor “VHCL/S SE-A/T”, “ACCELE POSI”, “ENGINE SPEED” and “SLCT LVR POSI”.
6. Start engine and maintain the following conditions for at least 5 consecutive seconds.
VHCL/S SE-A/T: 30 km/h (19 MPH) or more
ACCELE POSI: More than 1.0/8
SLCT LVR POSI: “D” position
Driving location: Driving the vehicle uphill (increased engine load) will help maintain the driving
conditions required for this test.
If the check result is NG, go to AT-110, "
Diagnosis Procedure".
If the check result is OK, go to following step.
7. Maintain the following conditions for at least 5 consecutive seconds. ENGINE SPEED: 3,500 rpm or more
ACCELE POSI: More than 1.0/8
SLCT LVR POSI: “D” position
Driving location: Driving the vehicle uphill (increased engine load) will help maintain the driving
conditions required for this test.
Item name Condition Display value
VHCL/S SE-A/T During driving Approximately matches the speedometer reading.
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AT-110
< SERVICE INFORMATION >
DTC P0720 VEHICLE SPEED SENSOR A/T (REVOLUTION SENSOR)
Diagnosis Procedure
INFOID:0000000001327202
1.CHECK INPUT SIGNAL
With CONSULT-III
1. Turn ignition switch ON.
2. Select “ECU INPUT SIGNALS” in “DATA MONI TOR” mode for “TRANSMISSION” with CONSULT-III.
3. Start engine.
4. Read out the value of “VHCL/S SE-A/T” while driving. Check the value changes according to driving speed.
OK or NG
OK >> GO TO 6.
NG >> GO TO 2.
2.CHECK TCM POWER SUPPLY AND GROUND CIRCUIT
Check TCM power supply and ground circuit. Refer to AT-160
.
OK or NG
OK >> GO TO 3.
NG >> Repair or replace damaged parts.
3.DETECT MALFUNCTIONING ITEM
Check A/T assembly harness connector pin terminals for damage or loose connection with harness connector.
OK or NG
OK >> GO TO 4.
NG >> Repair or replace damaged parts.
4.CHECK SUB-HARNESS
1. Remove control valve with TCM. Refer to AT-215, "
Control Valve with TCM and A/T Fluid Temperature
Sensor 2".
2. Disconnect park/neutral position switch connector and TCM connector.
3. Check continuity between park/neutral position switch connector
terminals and TCM connector terminals.
4. If OK, check harness for short to ground and short to power.
5. Reinstall any part removed.
OK or NG
OK >> GO TO 5.
NG >> Replace open circuit or short to ground and short to power in harness or connectors.
5.REPLACE THE REVOLUTION SENSOR AND CHECK DTC
1. Replace the revolution sensor. Refer to AT-233, "
Revolution Sensor Component (2WD Models Only)"
(2WD models) or AT-267, "Disassembly", AT-249, "Component" (AWD models).
Item name Condition Display value
VHCL/S SE-A/T During driving Approximately matches the speedometer
reading.
Item Connector Terminal Continuity
Park/neutral position switch
connector F505 8
Ye s
TCM connector F503 20
Park/neutral position switch
connector F505 9
Ye s
TCM connector F503 17
Park/neutral position switch
connector F505 10
Ye s
TCM connector F503 16
SCIA5458E
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AT-112
< SERVICE INFORMATION >
DTC P0725 ENGINE SPEED SIGNAL
DTC P0725 ENGINE SPEED SIGNAL
DescriptionINFOID:0000000001327203
The engine speed signal is sent from the ECM to the TCM with CAN communication.
CONSULT-III Reference Value in Data Monitor ModeINFOID:0000000001327204
On Board Diagnosis LogicINFOID:0000000001327205
Diagnostic trouble code “P0725 ENGINE SPEED SIG” wit h CONSULT-III or 16th judgement flicker without
CONSULT-III is detected when TCM does not receive the ignition signal from ECM during engine cranking or
running.
Possible CauseINFOID:0000000001327206
Harness or connectors
(ECM to TCM circuit is open or shorted.)
DTC Confirmation ProcedureINFOID:0000000001327207
CAUTION:
Always drive vehicle at a safe speed.
NOTE:
If “DTC Confirmation Procedure” has been previously performed, alw ays turn ignition switch OFF and
wait at least 10 seconds before performing the next test.
After the repair, perform the following proc edure to confirm the malfunction is eliminated.
WITH CONSULT-III
1. Turn ignition switch ON.
2. Select “SELECTION FROM MENU” in “DATA MONI TOR” mode for “TRANSMISSION” with CONSULT-III
and check monitor “VHCL/S SE-A/T”, “ACCELE POSI” and “SLCT LVR POSI”.
3. Touch “START”.
4. Start engine and maintain the following conditions for at least 10 consecutive seconds.
VHCL/S SE-A/T: 10 km/h (6 MPH) or more
ACCELE POSI: More than 1.0/8
SLCT LVR POSI: “D” position
5. If DTC is detected, go to AT-112, "
Diagnosis Procedure".
Diagnosis ProcedureINFOID:0000000001327208
1.CHECK CAN COMMUNICATION LINE
With CONSULT-III
 Perform the self-diagnosis.
Without CONSULT-III
 Perform the self-diagnosis. Refer to AT-91, "
Diagnosis Procedure without CONSULT-III".
Is a malfunction in the CAN communication indicated in the results?
YES >> Check CAN communication line. Refer to AT- 9 4.
NO >> GO TO 2.
2.CHECK DTC WITH TCM
With CONSULT-III
1. Start engine.
2. Select “ECU INPUT SIGNALS” in “DATA MONI TOR” mode for “TRANSMISSION” with CONSULT-III.
Item name Condition Display value
ENGINE SPEED Engine running Closely matches the tachometer reading.
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AT-114
< SERVICE INFORMATION >
DTC P0731 A/T 1ST GEAR FUNCTION
DTC P0731 A/T 1ST GEAR FUNCTION
DescriptionINFOID:0000000001375112
This malfunction is detected when the A/T does not shift into 1st gear position as instructed by TCM. This is
not only caused by electrical malfunction (circuits open or shorted) but also by mechanical malfunction such
as control valve sticking, improper solenoid valve operation.
On Board Diagn osis LogicINFOID:0000000001375113
Diagnostic trouble code “P0731 A/T 1ST GR FNCTN” with CONSULT-III or 18th judgment flicker without CON-
SULT-III is detected when TCM detects any inconsistency in the actual gear ratio.
Possible CauseINFOID:0000000001375114
 Harness or connectors
(Solenoid circuits are open or shorted.)
 Input clutch solenoid valve
 Front brake solenoid valve
 Direct clutch solenoid valve
 High and low reverse clutch solenoid valve
 Each clutch
 Hydraulic control circuit
DTC Confirmation ProcedureINFOID:0000000001375115
CAUTION:
Always drive vehicle at a safe speed.
NOTE:
If “DTC Confirmation Procedure” has been previously performed, alw ays turn ignition switch OFF and
wait at least 10 seconds before performing the next test.
After the repair, perform the following proc edure to confirm the malfunction is eliminated.
WITH CONSULT-III
1. Start the engine and select “DATA MONITOR” mode for “TRANSMISSION” with CONSULT-III.
2. Make sure that “ATF TEMP 1” is within the following range. ATF TEMP 1: 20 °C – 140 °C
If out of range, drive vehicle to warm ATF or stop engine to cool ATF.
3. Select “1ST GR FNCTN P0731” of “DTC WORK SUPPORT” mode for “TRANSMISSION” with CON-
SULT-III.
4. Drive vehicle and maintain the following conditions.
VEHICLE SPEED: 10 km/h (6 MPH) or more
ACCELE POSI: 0.6/8 or more
ENGINE SPEED: TURBINE REV − 50 rpm or more
TURBINE REV: 300 rpm or more
GEAR: “1” position
MANU MODE SW: ON
5. Keep the current driving status for at least 5 consecutive seconds if CONSULT-III screen changes from
“OUT OF CONDITION” to “TESTING”.
CAUTION:
If “TESTING” does not ap pear on CONSULT-III for a long ti me, select “SELF-DIAG RESULTS”. In
case a 1st trip DTC other than P0731 is shown, refer to “ AT-84, "
CONSULT-III Function (TRANSMIS-
SION)"”.
If “COMPLETED RESULT NG” is detected, go to AT-115, "
Diagnosis Procedure".
If “STOP VEHICLE” is detect ed, go to the following step.
6. Stop vehicle.
7. Drive vehicle in “D” position allowing it to shift fr om 1st to 5th gear and check shift timing and shift shock.
- Touch “OK” to complete the inspection when normally shifted from the 1st to 5th gear.
- Touch “NG” when an unusual shift shock, etc. occurs in spite of shifting from the 1st to 5th gear. Go to AT-
49, "Inspections Before Trouble Diagnosis".
- Perform AT-84, "
CONSULT-III Function (TRANSMISSION)" when not shifted from the 1st to 5th gear.
(Neither “OK” nor “NG” are indicated.)
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