2008 INFINITI FX35 check engine

BRC-28
< SERVICE INFORMATION >[VDC/TCS/ABS]
TROUBLE DIAGNOSIS
Note 1: After completing repairs of shorted sensor circuit, when turning ignition switch ON, ABS warning lamp turned on. Make t
hat ABS
warning lamp turned off while driving vehicle at approximately 30 km/h (19 MPH) or more for approximately 1 minute according to self-
diagnosis procedure. In addition, if whee l sensor 2 is displayed for wheels, check wheel sensor circuit and also check ABS actu ator and
electric unit (control unit) power voltage.
Note 2: If multiple malfunctions are detected including CAN communication line [U1000], perform diagnosis for CAN communication line
first.
Note 3: “ACTUATOR RLY” on the CONSULT-III self-diagnostic results indicates the malfunction of actuator relay or circuit. Actua tor relay
is imbedded in ABS actuator and electric unit (control unit).
Note 4:Only AWD models.
Data MonitorINFOID:0000000001327673
DISPLAY ITEM LIST
ENGINE SIGNAL 2
[C1131] Based on the signal from ECM, ABS ac
tuator and electric unit (control
unit) judges that engine ETC system is malfunctioning. BRC-42, "DTC C1131 ENGINE
SIGNAL 2"
ENGINE SIGNAL 3
[C1132]Based on the signal from ECM, ABS ac
tuator and electric unit (control
unit) judges that engine CAN system is malfunctioning. BRC-42, "DTC C1132 ENGINE
SIGNAL 3"
ENGINE SIGNAL 4
[C1133]Based on the signal from ECM, ABS ac
tuator and electric unit (control
unit) judges that engine torque down system is malfunctioning. BRC-42, "DTC C1133 ENGINE
SIGNAL 4"
ENGINE SIGNAL 6
[C1136]
Based on the signal from ECM, ABS ac
tuator and electric unit (control
unit) judges that engine control system is malfunctioning. BRC-42, "DTC C1136 ENGINE
SIGNAL 6"
ACTUATOR RLY
[C1140] (Note 3) Actuator solenoid valve relay is ON, even if control unit sends off sig-
nal.
 Actuator solenoid valve relay is OFF, even if control unit sends on sig- nal. BRC-43, "DTC C1140 ACTUA-
TOR RLY"
PRESS SEN CIRCUIT
[C1142]
Pressure sensor signal line is open or shorted, or sensor power voltage
is unusual, or pressure sensor is malfunctioning. BRC-43, "DTC C1142 PRESS
SEN CIRCUIT"
ST ANG SEN CIRCUIT
[C1143]Neutral position of steering angle sensor is dislocated, or steering angle
sensor is malfunctioning. BRC-44, "DTC C1143 ST ANG
SEN CIRCUIT"
ST ANG SEN SIGNAL
[C1144]
Neutral position correction of steering angle sensor is not finished. BRC-45, "DTC C1144 ST ANG
SEN SIGNAL"
YAW RATE SENSOR
[C1145]Yaw rate sensor has generated an error, or yaw rate sensor signal line
is open or shorted. BRC-46, "DTC C1145 YAW
RATE SENSOR"
SIDE G-SEN CIRCUIT
[C1146]Side G sensor is malfunctioning, or signal line of side G sensor is open
or shorted. BRC-46, "DTC C1146 SIDE G-
SEN CIRCUIT"
BR FLUID LEVEL LOW
[C1155]
Brake fluid level drops or
circuit between ABS actuat or and electric unit
(control unit) and brake fluid level switch is open or shorted. BRC-46, "DTC C1155 BR FLU-
ID LEVEL LOW"
ST ANG SEN COM CIR
[C1156]CAN communication line or steering angle sensor has generated an er-
ror. BRC-47, "DTC C1156 ST ANG
SEN COM CIR"
DECEL G SEN SET
[C1160] (Note 4)
Neutral position correction of decel G sensor is not finished.
BRC-47, "DTC C1160 DECEL G
SEN SET"
CV 1
[C1164]Primary side VDC switch-over solenoid valve 1 (cut valve 1) is open or
shorted, or control line is open or shorted to power supply or ground.
BRC-47, "DTC C1164 CV 1"
CV 2
[C1165]Secondary side VDC switch-over solenoid valve 2 (cut valve 2) is open
or shorted, or control line is open or shorted to power supply or ground.
BRC-47, "DTC C1165 CV 2"
SV 1
[C1166]Primary side VDC switch-over solenoid valve 1 (suction valve 1) is open
or shorted, or control line is open or shorted to power supply or ground.
BRC-47, "DTC C1166 SV 1"
SV 2
[C1167]Secondary side VDC switch-over solenoid valve 2 (suction valve 2) is
open or shorted, or control line is open or shorted to power supply or
ground.
BRC-47, "DTC C1167 SV 2"
VARIANT CODING
[C1170]
V coding is not functioning. BRC-48, "DTC C1170 VARIANT
CODING"
CAN COMM CIRCUIT
[U1000] (Note 2)When a ABS actuator and electric unit (control unit) is not transmitting
or receiving CAN communication signal for 2 seconds or more. BRC-48, "DTC U1000 CAN
COMM CIRCUIT"
Self-diagnostic item Malfunction detecting condition Check system
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TROUBLE DIAGNOSISBRC-31
< SERVICE INFORMATION > [VDC/TCS/ABS]
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 When active test is performed while depressing, t he pedal depression amount will change. This is normal.
 “TEST IS STOPPED” is displayed 10 seconds after operation start.
 After “TEST IS STOPPED” is displayed, touch “BACK” and perform test again.
TEST ITEM
Solenoid Valve
NOTE:
The example shown is for the front right wheel. The procedure for the other wheels is the same as given
below.
 When performing an active test of the ABS function, se lect the main item for each test item. In addition,
when performing an active test of the VDC/TCS function, select the item menu for each test item.
 For the ABS solenoid valve, touch “UP” “KEEP” “DOWN”, and for the ABS solenoid valve (ACT), touch “UP”
“ACTUATOR UP” “ACTUATOR KEEP”, and check to make su re that all solenoid valve (in, out) are operating
as given in the table below.
*: ON for 1 to 2 seconds after the touch, and then OFF
ABS Motor
Touch “ON” and “OFF” on the screen. Make sure AB S motor relay operates as shown in table below.
For Fast and Accurate DiagnosisINFOID:0000000001327675
PRECAUTIONS FOR DIAGNOSIS
 Before performing diagnosis, always read precautions. Refer to BRC-13, "How to Proceed with Diagnosis".
 If ABS actuator and electric unit (control unit), steer ing angle sensor, steering system parts or suspension
system parts have been replaced, or if alignment has been adjusted, be sure to adjust neutral position of
steering angle sensor before driving. Refer to BRC-8, "
Adjustment of Steering Angle Sensor Neutral Posi-
tion".
 After diagnosis is finished, be sure to erase memory. Refer to BRC-26, "
Self-Diagnosis".
 When checking continuity and voltage between units, be sure to check for disconnection, looseness, bend,
or collapse of connector terminals. If any malfuncti on is found, repair or replace connector terminals.
 For intermittent symptoms, possible cause is malfunc tion in harness, harness connector, or terminals. Move
harness, harness connector, and terminals to check for poor connections.
 If a circuit tester is used for the check, be ca reful not to forcibly extend any connector terminal.
 To use CONSULT-III to perform self-diagnosis of ABS act uator and electric unit (control unit), active tests, or
work support, first stop work, then connect CONSULT-III and select “ABS”.
 While self-diagnostic results of CONSULT-III shows malf unction, if CONSULT-III active test is performed, an
engine system error may be indicated. In this case, start engine to resume the normal screen.
 VDC/TCS/ABS system electronica lly controls brake operation and engine output. The following symptoms
may be caused by normal operations:
Operation ABS solenoid valve ABS so
lenoid valve (ACT)
UP KEEP DOWN UP ACTUATOR
UP ACTUATOR
KEEP
FR RH IN SOL OFF ON ON OFF OFF OFF
FR RH OUT SOL OFF OFF ON* OFF OFF OFF
CV 1 OFF OFF OFF OFF ON ON
SV 1 OFF OFF OFF OFF ON* OFF
Operation ON OFF
MOTOR RELAY ON OFF
ACTUATOR RLY ON ON
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BRC-32
< SERVICE INFORMATION >[VDC/TCS/ABS]
TROUBLE DIAGNOSIS
Basic Inspection
INFOID:0000000001327676
BRAKE FLUID AMOUNT, LEAKS, AND BRAKE PADS INSPECTION
1. Check fluid level in the brake reservoir tank. If fluid level is low, refill brake fluid.
2. Check brake piping and around ABS actuator and electric uni t (control unit) for leaks. If there is leaking or
oozing fluid, check the following items.
 If ABS actuator and electric unit (control unit) connec tion is loose, tighten piping to the specified torque
and re-perform the leak inspection to make sure there are no leaks.
 If there is damage to the connection flare nut or AB S actuator and electric unit (control unit) screw,
replace the damaged part and re-perform the leak inspection to make sure there are no leaks.
 When there is fluid leaking or oozing from a part other than ABS actuator and electric unit (control unit)
connection, if fluid is just oozing out, use a clean cl oth to wipe off the oozing fluid and re-check for leaks.
If fluid is still oozing out, replace the damaged part.
 When there is fluid leaking or oozing at ABS actuator and electric unit (control unit), if fluid is just oozing
out, use a clean cloth to wipe off oozing fluid and re-che ck for leaks. If fluid is still oozing out, replace
ABS actuator and electric unit (control unit) body.
CAUTION:
ABS actuator and electric unit (contr ol unit) body can not be disassembled.
3. Check brake pad degree of wear. Refer to BR-18, "
On-Vehicle Inspection" in “Front Disc Brake” and BR-
24, "On-Vehicle Inspection" in “Rear Disc Brake”
POWER SYSTEM TERMINAL LOOSENESS AND BATTERY INSPECTION
Make sure battery positive cable, negative cabl e and ground connection are not loose. If looseness is
detected, tighten the cables. In additi on, check the battery voltage to make sure it has not dropped and alter-
nator is normal.
ABS WARNING LAMP, VDC OFF INDICATOR LAMP, SLIP INDICATOR LAMP AND BRAKE WARN-
ING LAMP INSPECTION
Symptom Symptom description Result
Motor operation noise This is noise of motor in
side ABS actuator and electr ic unit (control unit).
Slight noise may occur during VDC, TCS, and ABS operation.
Normal
When the vehicle speed goes over 20 km/h (12.5 MPH), motor and valves
operating noise may be heard. It happens only once after ignition switch is
ON. This is a normal status of the system operation check.
System operation check noise When engine starts, slight “click” noise may be heard from engine room.
This is normal and is part of system operation check. Normal
VDC/TCS operation
(SLIP indicator lamp blinking) TCS may activate momentarily if wheel speed changes when driving over
location where friction coefficient varies, when up/downshifting, or when ful-
ly depressing accelerator pedal.
Normal
Cancel the VDC/TCS
function for the inspec-
tion on a chassis dyna-
mometer.
For inspection of speedometer or other instruments, press VDC OFF switch
to turn VDC/TCS function off.
When accelerator pedal is depressed on a chassis dynamometer (fixed
front-wheel type), vehicle speed will not increase. This is not normal. It is re-
sult of TCS being activated by stationary front wheels. Warning lamp may
also illuminate to indicate “sensor system error”. This is also normal, and is
the result of the stationary front wheels being detected. To be certain, restart
engine, and drive vehicle at 30 km/h (19 MPH) or more. Make sure warning
lamp does not illuminate.
ABS operation
(Longer stopping distance) On roads with low friction coefficients, such as snowy roads or gravel roads,
vehicles with ABS may require a longer stopping distance. Therefore, when
driving on such roads, avoid overconfidence and keep speed sufficiently
low.
Normal
Insufficient feeling of accelera-
tion Depending on road conditions, driver may feel that feeling of acceleration is
insufficient. This is because traction control, which controls engine and
brakes to achieve optimal traction, has the highest priority (for safety). As a
result, there may be times when acceleration is slightly less than usual for
the same accelerator pedal operation.
Normal
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TROUBLE DIAGNOSISBRC-33
< SERVICE INFORMATION > [VDC/TCS/ABS]
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× : ON –: OFF
Note 1:Brake warning lamp will turn on in case of operating parking brake (switch turned on) or of actuating brake fluid level switch
(brake fluid is insufficient).
Note 2:After starting engine, turn OFF.
1. Make sure ABS warning lamp, VDC OFF indicator lamp (when VDC OFF switch is OFF), and SLIP indica- tor lamp turn on approximately 2 second, and brake warning lamp turns on when ignition switch is turned
ON. If they do not, check VDC OFF indicator lamp and then VDC OFF switch. Refer to BRC-48, "
Compo-
nent Inspection". Check CAN communications. Refer to “CAN Communication Inspection”. If there are no
errors with VDC OFF switch and CAN communication system, check combination meter. Refer to DI-5
.
2. Make sure ABS warning lamp, VDC OFF indicator lamp, SLIP indicator lamp turn off approximately 2 sec- ond after turn ignition switch ON, and brake warning lamp turns off after engine starts. If lamps do not turn
off, perform self-diagnosis.
3. With engine running, make sure VDC OFF indicator lamp turns on and off when VDC OFF switch is turned ON and OFF. If indicator lamp status does not correspond to switch operation, check the VDC OFF
switch system. Refer to BRC-48, "
Component Inspection".
4. Make sure ABS warning lamp, VDC OFF indicator lamp, and SLIP indicator lamp turn off 2 seconds after engine is started. If ABS warning lamp, VDC OFF indicator lamp, and SLIP indicator lamp have not turned
off 10 seconds after engine has been started, perform self-diagnosis of ABS actuator and electric unit
(control unit).
5. After performing the self-diagnosis, be sure to erase the error memory. Refer to BRC-26, "
Self-Diagnosis".
NOTE:
Brake warning lamp will turn ON in case of parking brake operation (when switch is ON) or of brake fluid level
switch should not stay “ON” position.
Condition ABS warning
lamp VDC OFF in-
dicator lamp SLIP indicator
lamp Brake warning
lamp (Note 1) Remarks
Ignition switch OFF. – – – — —
Approx. 2 seconds after ignition
switch is turned ON. ×× ××
(Note 2) —
Approx. 2 seconds later after ig-
nition switch ON. –– –
× (Note 2) Go out 2 seconds after igni-
tion switch is turned ON.
VDC OFF switch is turned ON.
(VDC/TCS function is OFF.) –
× –— —
VDC/TCS/ABS error. ×× × —There is an ABS actuator
and electric unit (control unit)
error. (Power, ground or sys-
tem malfunction)
When VDC/TCS is not function-
ing normally. –
×× ——
EBD error. ×× × × —
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BRC-36
< SERVICE INFORMATION >[VDC/TCS/ABS]
TROUBLE DIAGNOSIS FOR SYSTEM
DTC C1105 RR RH SENSOR-2
INFOID:0000000001569694
Refer to BRC-34, "DTC C1101 RR RH SENSOR-1".
DTC C1106 RR LH SENSOR-2INFOID:0000000001569695
Refer to BRC-34, "DTC C1101 RR RH SENSOR-1".
DTC C1107 FR RH SENSOR-2INFOID:0000000001569696
Refer to BRC-34, "DTC C1101 RR RH SENSOR-1".
DTC C1108 FR LH SENSOR-2INFOID:0000000001569697
Refer to BRC-34, "DTC C1101 RR RH SENSOR-1".
DTC C1109 BATTERY VOLTAGE [ABNORMAL]INFOID:0000000001327685
INSPECTION PROCEDURE
1.CHECK SELF-DIAGNOSTIC RESULTS (1)
Check the self-diagnostic results.
Does
“BATTERY VOLTAGE” appear in self-diagnostic results display?
YES >> GO TO 2.
NO >> INSPECTION END
2.CHECK SELF-DIAGNOSTIC RESULTS (2)
1. Disconnect ABS actuator and electric unit (contro l unit) connector. Then reconnect it securely.
2. Perform self-diagnosis.
Do any self-diagnosis item appear?
YES >> GO TO 3.
NO >> Poor connection. Repair or replace connector.
3.CHECK ABS ACTUATOR AND ELECTRIC UNIT (CONTROL UNIT) POWER SUPPLY CIRCUIT (1)
1. Disconnect ABS actuator and electric unit (control unit) connector E56.
2. Turn ignition switch OFF. Check voltage between ABS actuator and electric unit (control unit) harness connector and ground.
3. Turn ignition switch ON (but do not start engine). Check voltage between ABS actuator and electr ic unit (control unit) harness
connector and ground.
OK or NG
OK >> GO TO 4.
NG >> GO TO 5.
4.CHECK ABS ACTUATOR AND ELECTRIC UNIT (CONTROL UNIT) GROUND CIRCUIT
Self-diagnostic results
BATTERY VOLTAGE [ABNORMAL]
ABS actuator and electric unit (control unit) Ground Voltage
32 — Battery voltage
(Approx. 12 V)
ABS actuator and electric unit (control unit) Ground Voltage 4— Battery voltage
(Approx. 12 V)
SFIA1200E
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BRC-38
< SERVICE INFORMATION >[VDC/TCS/ABS]
TROUBLE DIAGNOSIS FOR SYSTEM
1. Disconnect ABS actuator and electric unit (contro
l unit) connector. Then reconnect it securely.
2. Perform self-diagnosis again.
Do any self-diagnosis item appear?
YES >> GO TO 3.
NO >> Poor connection. Repair or replace the applicable connector.
3.CHECK ABS MOTOR AND MOTOR RELAY POWER SUPPLY CIRCUIT
1. Turn ignition switch OFF and disconnect ABS actuat or and electric unit (control unit) connector E56.
2. Check voltage between ABS actuator and electric unit (control unit) harness connector and ground.
3. Check continuity between ABS ac tuator and electric unit (control
unit) harness connector and ground.
OK or NG
OK >> Perform self-diagnosis again. If the same result appears, replace ABS actuator and electric unit (control
unit). Refer to BRC-54
.
NG >> Repair harness or connectors.
DTC C1113 G-SENSORINFOID:0000000001327682
CAUTION:
Sudden turns (such as spin turns, acceleration turns), drifting, etc. may cause the G sensor circuit
indicate a malfunction. However, this is not a malf unction, if normal operation can be resumed after
restarting engine.
INSPECTION PROCEDURE
1.CHECK SELF-DIAGNOSTIC RESULTS
Check the self-diagnostic results.
CAUTION:
When on a turntable, such as at a parking structure entrance, or wh en on a moving object with engine
running, VDC OFF indicator lamp might turn on and self-diagnosis using CONSULT-III the yaw rate
sensor system might be displayed, but in this case ther e is no malfunction in yaw rate sensor circuit.
As soon as vehicle leaves turntable or moving object , restart engine to return the system to normal.
Is the above displayed in the self-diagnosis display items?
YES >> GO TO 2.
NO >> INSPECTION END
2.CHECK CONNECTOR
ABS actuator and electric unit (control unit) Ground Voltage
1, 32 — Battery voltage
(Approx. 12 V)
SFIA1198E
ABS actuator and electric unit (control unit) Ground Continuity
16, 47 — Yes
SFIA1197E
Self-diagnostic resultsYAW RATE SENSOR
SIDE G-SEN CIRCUIT
G-SENSOR (AWD models)
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BRC-42
< SERVICE INFORMATION >[VDC/TCS/ABS]
TROUBLE DIAGNOSIS FOR SYSTEM
DTC C1123 FR RH OUT ABS SOL
INFOID:0000000001569707
Refer to BRC-40, "DTC C1120 FR LH IN ABS SOL".
DTC C1124 RR LH IN ABS SOLINFOID:0000000001569708
Refer to BRC-40, "DTC C1120 FR LH IN ABS SOL".
DTC C1125 RR LH OUT ABS SOLINFOID:0000000001569709
Refer to BRC-40, "DTC C1120 FR LH IN ABS SOL".
DTC C1126 RR RH IN ABS SOLINFOID:0000000001569710
Refer to BRC-40, "DTC C1120 FR LH IN ABS SOL".
DTC C1127 RR RH OUT ABS SOLINFOID:0000000001569711
Refer to BRC-40, "DTC C1120 FR LH IN ABS SOL".
DTC C1130 ENGINE SIGNAL 1INFOID:0000000001327678
INSPECTION PROCEDURE
1.CHECK SELF-DIAGNOSTIC RESULTS
Check the self-diagnostic results.
Is the above displayed in the self-diagnosis display items?
YES >> GO TO 2.
NO >> INSPECTION END
2.CHECK ENGINE SYSTEM
1. Perform an ECM self-diagnosis and repair or repl ace malfunctioning items. Perform ECM self-diagnosis
again.
2. Perform ABS actuator and electric unit (control unit) self-diagnosis again.
OK or NG
OK >> INSPECTION END
NG >> Repair or replace malfunctioning it ems. Perform the self-diagnosis again.
DTC C1131 ENGINE SIGNAL 2INFOID:0000000001569712
Refer to BRC-42, "DTC C1130 ENGINE SIGNAL 1".
DTC C1132 ENGINE SIGNAL 3INFOID:0000000001569713
Refer to BRC-42, "DTC C1130 ENGINE SIGNAL 1".
DTC C1133 ENGINE SIGNAL 4INFOID:0000000001569714
Refer to BRC-42, "DTC C1130 ENGINE SIGNAL 1".
DTC C1136 ENGINE SIGNAL 6INFOID:0000000001569715
Refer to BRC-42, "DTC C1130 ENGINE SIGNAL 1".
Self-diagnostic results
ENGINE SIGNAL 1
ENGINE SIGNAL 2
ENGINE SIGNAL 3
ENGINE SIGNAL 4
ENGINE SIGNAL 6
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BRC-50
< SERVICE INFORMATION >[VDC/TCS/ABS]
TROUBLE DIAGNOSIS FOR SYMPTOMS
The ABS Function Does Not Operate
INFOID:0000000001327695
CAUTION:
The ABS does not operate when the sp eed is 10 km/h (6 MPH) or less.
1.CHECK ABS WARNING LAMP DISPLAY
Make sure warning lamp turns off approximately 2 seconds after the ignition switch is turned ON or when driv-
ing.
OK or NG
OK >> CHECK WHEEL SENSOR. Refer to BRC-49, "Excessive ABS Function Operation Frequency".
NG >> Perform self-diagnosis. Refer to BRC-26, "
Self-Diagnosis".
Pedal Vibration or ABS Operation Sound OccursINFOID:0000000001327696
CAUTION:
Under the following conditions, when brake pedal is lightly depressed (just place a foot on it), ABS is
activated and vibration is felt. However, this is normal.
 When shifting gears
 When driving on slippery road
 During cornering at high speed
 When passing over bumps or grooves
 When pulling away just after st arting engine [at approximately 10 km/h (6 MPH) or higher]
1.SYMPTOM CHECK 1
Check if pedal vibration or operati on sound occurs when engine is started.
OK or NG
OK >> Perform self-diagnosis. Refer to BRC-26, "Self-Diagnosis".
NG >> GO TO 2.
2.SYMPTOM CHECK 2
Check symptom when electrical component (headlamps, etc.) switches are operated.
Does the symptom occur when the electrical component (head lamp, etc.) switches are operated?
YES >> Check if there is a radio, antenna, antenna lead wi re, or wiring close to ABS actuator and electric
unit (control unit) (or its wiring), and if there is, move it farther away.
NO >> CHECK WHEEL SENSOR. Refer to BRC-49, "
Excessive ABS Function Operation Frequency".
Vehicle Jerks During VDC/TCS/ABS ControlINFOID:0000000001327697
1.CHECK ENGINE SPEED SIGNAL
Perform CONSULT-III “DATA MONITOR” to check engine speed.
Is engine speed at idle 400 rpm or higher?
YES >> GO TO 3.
NO >> GO TO 2.
2.CHECK ABS WARNING LAMP DISPLAY
Make sure warning lamp turns off approximately 2 seconds after the ignition switch is turned ON or when driv-
ing.
OK or NG
OK >> System is normal.
NG >> GO TO 3.
3.CHECK ECM SELF-DIAGNOSTIC RESULTS
Perform ECM self-diagnosis.
Are self-diagnosis items displayed?
YES >> Check the corresponding items. Refer to EC-89(VQ35DE), EC-666(VK45DE) in “Engine Control
(EC section)”.
NO >> GO TO 4.
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