Driver Assistance System (Dca): Diagnosis — Infiniti FX50 II рестайлинг (2011-2013)

ACTION TEST: Special Repair Requirement (Distance Control Assist)

Note. When the ICC system is set, the information display changes to the ICC system display.

Scheme 38

Scheme 38: ACTION TEST: Special Repair Requirement (Distance Control Assist)

ICC SYSTEM ACTION TEST Perform the ICC system action test. Refer to " «ACTION TEST: DESCRIPTION»(ref-524036-S14122583722013012500000) ". : GO TO 2.
CHECK DCA SYSTEM SETTING Start the engine. Check that the DCA system setting can be enabled/disabled on the navigation screen. Turn OFF the ignition switch and wait for 5 seconds or more. Check that the previous setting is saved when the engine starts again. : GO TO 3 .
CHECK DYNAMIC DRIVER ASSISTANCE SWITCH Start the engine. After starting the engine wait for 5 seconds or more. Enable the setting of the DCA system on the navigation screen. Press the dynamic driver assistance switch (1). Check that the DCA system switch indicator (2) on the information display illuminates. Check that the DCA system switch indicator turns off when the system is turned OFF by pressing the dynamic driver assistance switch. Check that the DCA system switch indicator turns OFF when the engine starts again. NOTE: The DCA system switch indicator does not illuminate even when the dynamic driver assistance switch is turned ON within approximately 5 seconds after starting the engine. When the DCA system setting is disabled on the navigation screen, the DCA system switch indicator is not turned ON by pressing the dynamic driver assistance switch. If the accelerator pedal assembly is not replaced: INSPECTION END If the accelerator pedal assembly is replaced: GO TO 4.
CHECK DCA SYSTEM OPERATION Check that the accelerator pedal actuator operates by the "Active Test" items "ACCELERATOR PEDAL ACTUATOR TEST1" and "ACCELERATOR PEDAL ACTUATOR TEST2" of "ACCELE PEDAL ACT" with CONSULT. : INSPECTION END

Scheme 39

Scheme 39: System Diagram

WHEN THE ON BOARD SELF-DIAGNOSIS DOES NOT START

If the on board self-diagnosis does not start, check the following items

Assumed abnormal part		Inspection item
ICC system display	Combination meter malfunction	Check that the self-diagnosis function of the combination meter operates. Refer to " DIAGNOSIS DESCRIPTION ".
	Unified meter and A/C amp. malfunction	Check power supply and ground circuit of unified meter and A/C amp. Refer to " UNIFIED METER AND A/C AMP.: DIAGNOSIS PROCEDURE ".
	Communication error of the combination meter and the unified meter and A/C amp.	Start the self-diagnosis of the unified meter and A/C amp. and then check the self-diagnosis results. Refer to " DTC INDEX ".
ICC steering switch malfunction		Perform the inspection for DTC "C1A06". Refer to " DIAGNOSIS PROCEDURE ".
Harness malfunction between ICC steering switch and ECM
ECM malfunction
ICC sensor integrated unit malfunction		Check power supply and ground circuit of ICC sensor integrated unit. Refer to " ICC SENSOR INTEGRATED UNIT: DIAGNOSIS PROCEDURE ". Perform SELF-DIAGNOSIS for "ICC/ADAS" with CONSULT, and then check the malfunctioning parts. Refer to " DTC INDEX ".

HOW TO ERASE ON BOARD SELF-DIAGNOSIS

Turn the ignition switch OFF.
Start the engine, and then start the on board self-diagnosis.
Press the CANCEL switch 5 times, and then press the DISTANCE switch 5 times under the condition that the on board self-diagnosis starts. NOTE: Complete the operation within 10 seconds after pressing the CANCEL switch first. If the operation is not completed within 10 seconds, repeat the procedure from step 1 .
DTC 55 is displayed after erasing. NOTE: DTCs for existing malfunction can not be erased.
Turn ignition switch OFF, and finish the diagnosis.

Scheme 40

SELF DIAGNOSTIC RESULT

Refer to " DTC INDEX ".

ACTIVE TEST

CAUTION

Never perform "Active Test" while driving the vehicle. The "Active Test" cannot be performed when the ICC system warning lamp is illuminated. Shift the selector lever to "P" position, and then perform the test.

Test item	Description
METER LAMP	The ICC system warning lamp, MAIN switch indicator, SET switch indicator and IBA OFF indicator lamp can be illuminated by ON/OFF operations as necessary.
DCA INDICATOR	The DCA system switch indicator can be illuminated by ON/OFF operations as necessary.
STOP LAMP	The ICC brake hold relay can be operated by ON/OFF operations as necessary, and the stop lamp can be illuminated.
BOOSTER SOL/V	The booster solenoid can be operated as necessary, and the brake can be operated.
ICC BUZZER	The ICC warning chime can sound by ON/OFF operations as necessary.
ACCELERATOR PEDAL ACTUATOR	The accelerator pedal actuator can be operated as necessary.

Refer to " DTC INDEX " (ACCELE PEDAL ACT).

CAUTION

Never perform ACTIVE TEST while driving the vehicle.

Note. The active test cannot be performed when the ICC system warning lamp is illuminated.

Active test item	Description
ACCELERATOR PEDAL ACTUATOR TEST1	Drive the accelerator pedal actuator and generate the constant accelerator pedal actuation force.
ACCELERATOR PEDAL ACTUATOR TEST2	Drive the accelerator pedal actuator and generate the vibration.

ACTIVE TEST ITEM DESCRIPTION CHART

ACCELERATOR PEDAL ACTUATOR TEST 1

Note. Check the accelerator pedal by depressing when performing the test.

Active test item	Operation	Description
ACCELERATOR PEDAL ACTUATOR TEST1	STOP	Finish the test.
ACCELERATOR PEDAL ACTUATOR TEST1	START	Generate the constant accelerator pedal actuation force for accelerator pedal.

ACCELERATOR PEDAL ACTUATOR TEST 2

Note. Check the accelerator pedal by depressing when performing the test.

Active test item	Operation	Description
ACCELERATOR PEDAL ACTUATOR TEST 2	STOP	Finish the test.
ACCELERATOR PEDAL ACTUATOR TEST 2	START	Generate the vibration for accelerator pedal.

DTC DETECTION LOGIC

DTC (On board display)	Trouble diagnosis name	DTC detecting condition	Possible causes
C1A00 (0)	CONTROL UNIT	ICC sensor integrated unit internal malfunction	ICC sensor integrated unit

DTC CONFIRMATION PROCEDURE

PERFORM DTC CONFIRMATION PROCEDURE Start the engine. Perform "All DTC Reading" with CONSULT. Check if the "C1A00" is detected as the current malfunction in self-diagnosis results of "ICC/ADAS". Is "C1A00" detected as the current malfunction? YES: Refer to " «DIAGNOSIS PROCEDURE»(ref-524071-S32738804722013012500000) ". NO: INSPECTION END

Diagnosis Procedure

CHECK SELF-DIAGNOSIS RESULTS Check if any DTC other than "C1A00" is detected in "Self Diagnostic Result" of "ICC/ADAS". Is any DTC detected? YES: Perform diagnosis on the detected DTC and repair or replace the malfunctioning parts. Refer to " «DTC INDEX»(ref-524071-S16725429442013012500000) " (ICC/ADAS). NO: Replace the ICC sensor integrated unit. Refer to " «EXPLODED VIEW»(ref-524071-S36884752842013012500000) ".

DTC (On board display)	Trouble diagnosis name	DTC detecting condition	Possible causes
C1A01 (1)	POWER SUPPLY CIR	ICC sensor integrated unit power supply voltage is excessively low (less than 8 V).	Connector, harness, fuse ICC sensor integrated unit
C1A02 (2)	POWER SUPPLY CIR 2	ICC sensor integrated unit power supply voltage is excessively high (more than 19 V).	Connector, harness, fuse ICC sensor integrated unit

PERFORM DTC CONFIRMATION PROCEDURE Start the engine. Turn the DCA system ON. Perform "All DTC Reading" with CONSULT. Check if the "C1A01" or "C1A02" is detected as the current malfunction in self-diagnosis results of "ICC/ADAS". Is "C1A01" or "C1A02" detected as the current malfunction? YES: Refer to " «DIAGNOSIS PROCEDURE»(ref-524071-S39031609212013012500000) ". NO: Refer to " «INTERMITTENT INCIDENT»(ref-523989-S35030212592013012500000) ".

CHECK ICC SENSOR INTEGRATED UNIT POWER SUPPLY AND GROUND CIRCUIT Check power supply and ground circuit of ICC sensor integrated unit. Refer to " «ICC SENSOR INTEGRATED UNIT: DIAGNOSIS PROCEDURE»(ref-524071-S26657406512013012500000) ". Is the inspection result normal? YES: Replace the ICC sensor integrated unit. Refer to " «EXPLODED VIEW»(ref-524071-S36884752842013012500000) ". NO: Repair or replace the malfunctioning parts.

DTC (On board display)	Trouble diagnosis name	DTC detecting condition	Possible causes
C1A03 (3)	VHCL SPEED SE CIRC	If the vehicle speed signal (wheel speed) from ABS actuator and electric unit (control unit) and the A/T vehicle speed sensor signal (output shaft revolution signal) from TCM, received by the ICC sensor integrated unit via CAN communication, are inconsistent	Wheel speed sensor ABS actuator and electric unit (control unit) Vehicle speed sensor A/T (output speed sensor) TCM ICC sensor integrated unit

Note. If DTC "C1A03" is detected along with DTC "U1000" or "C1A04", first diagnose the DTC "U1000" or "C1A04". Refer to " ICC SENSOR INTEGRATED UNIT: DTC LOGIC " for DTC "U1000". Refer to " DTC LOGIC " for DTC "C1A04".

PERFORM DTC CONFIRMATION PROCEDURE Start the engine. Turn the DCA system ON. Drive the vehicle at 30 km/h (19 MPH) or more. CAUTION: Always drive safely. Stop the vehicle. Perform "All DTC Reading" with CONSULT. Check if the "C1A03" is detected as the current malfunction in self-diagnosis results of "ICC/ADAS". Is "C1A03" detected as the current malfunction? YES: Refer to " «DIAGNOSIS PROCEDURE»(ref-524071-S30103790762013012500000) ". NO: Refer to " «INTERMITTENT INCIDENT»(ref-523989-S35030212592013012500000) ".

CHECK SELF-DIAGNOSIS RESULTS Check if "C1A04" or "U1000" is detected other than "C1A03" in "Self Diagnostic Result" of "ICC/ADAS". Is any DTC detected? YES: Perform diagnosis on the detected DTC and repair or replace the malfunctioning parts. Refer to " «DTC INDEX»(ref-524071-S16725429442013012500000) " (ICC/ADAS). NO: GO TO 2.
CHECK DATA MONITOR Start the engine. Drive the vehicle. Check that the value of "VHCL SPD AT" is almost the same as the value of "VHCL SPEED SE" in "DATA MONITOR" of "ICC/ADAS". CAUTION: Be careful of the vehicle speed. Is the inspection result normal? YES: Replace the ICC sensor integrated unit. Refer to " «EXPLODED VIEW»(ref-524071-S36884752842013012500000) ". NO: GO TO 3.
CHECK TCM SELF-DIAGNOSIS RESULTS Perform "All DTC Reading". Check if any DTC is detected in "Self Diagnostic Result" of "TRANSMISSION". Is any DTC detected? YES: Perform diagnosis on the detected DTC and repair or replace the malfunctioning parts. Refer to " «DTC INDEX»(ref-524009-S40785710712013012500000) " (VQ35HR) or " «DTC INDEX»(ref-524019-S36613113262013012500000) " (VK50VE). NO: GO TO 4 .
CHECK ABS ACTUATOR AND ELECTRIC UNIT (CONTROL UNIT) SELF-DIAGNOSIS RESULTS Check if any DTC is detected in "Self Diagnostic Result" of "ABS". Is any DTC detected? YES: Perform diagnosis on the detected DTC and repair or replace the malfunctioning parts. Refer to " «DTC INDEX»(ref-524026-S23650152162013012500000) ". NO: Replace the ICC sensor integrated unit. Refer to " «EXPLODED VIEW»(ref-524071-S36884752842013012500000) ".

DTC (On board display)	Trouble diagnosis name	DTC detecting condition	Possible causes
C1A04 (4)	ABS/TCS/VDC CIRC	If the malfunction occurs in the VDC/TCS/ABS system	ABS actuator and electric unit (control unit)

Note. If DTC "C1A04" is detected along with DTC "U1000", first diagnose the DTC "U1000". Refer to " ICC SENSOR INTEGRATED UNIT: DTC LOGIC ".

CHECK SELF-DIAGNOSIS RESULTS Perform "All DTC Reading" with CONSULT. Check if the "U1000" is detected other than "C1A04" in "Self Diagnostic Result" of "ICC/ADAS". Is "U1000" detected? YES: Perform the CAN communication system inspection. Repair or replace the malfunctioning parts. Refer to " «ICC SENSOR INTEGRATED UNIT: DTC LOGIC»(ref-524071-S20280562102013012500000) ". NO: GO TO 2.
CHECK ABS ACTUATOR AND ELECTRIC UNIT (CONTROL UNIT) SELF-DIAGNOSIS RESULTS Check if any DTC is detected in "Self Diagnostic Result" of "ABS". Is any DTC detected? YES: Perform diagnosis on the detected DTC and repair or replace the malfunctioning parts. Refer to " «DTC INDEX»(ref-524026-S23650152162013012500000) ". NO: Replace the ICC sensor integrated unit. Refer to " «EXPLODED VIEW»(ref-524071-S36884752842013012500000) ".

DTC (On board display)	Trouble diagnosis name	DTC detecting condition	Possible causes
C1A05 (5)	BRAKE SE/STOP L SW	If ICC sensor integrated unit receives the ICC brake switch signal ON status during the stop lamp switch signal ON status	Stop lamp switch circuit ICC brake switch circuit Stop lamp switch ICC brake switch Incorrect stop lamp switch installation Incorrect ICC brake switch installation ECM

Note. If DTC "C1A05" is detected along with DTC "U1000", first diagnose the DTC "U1000". Refer to " ICC SENSOR INTEGRATED UNIT: DTC LOGIC ".

CHECK SELF-DIAGNOSIS RESULTS Perform "All DTC Reading" with CONSULT. Check if the "U1000" is detected other than "C1A05" in "Self Diagnostic Result" of "ICC/ADAS". Is "U1000" detected? YES: Perform the CAN communication system inspection. Repair or replace the malfunctioning parts. Refer to " «ICC SENSOR INTEGRATED UNIT: DTC LOGIC»(ref-524071-S20280562102013012500000) ". NO: GO TO 2.
CHECK STOP LAMP SWITCH AND ICC BRAKE SWITCH Check that "STOP LAMP SW" and "BRAKE SW" operate normally in "DATA MONITOR" of "ICC/ADAS". Is the inspection result normal? YES: GO TO 12 . NO-1: When "BRAKE SW" operation is malfunctioning: GO TO 3 . NO-2: When "STOP LAMP SW" operation is malfunctioning: GO TO 8 .
CHECK ICC BRAKE SWITCH INSTALLATION Turn ignition switch OFF. Check ICC brake switch for correct installation. Refer to " «INSPECTION AND ADJUSTMENT»(ref-524027-S30740243072013012500000) ". Is the inspection result normal? YES: GO TO 4. NO: Adjust ICC brake switch installation. Refer to " «INSPECTION AND ADJUSTMENT»(ref-524027-S30740243072013012500000) ".
ICC BRAKE SWITCH INSPECTION Disconnect ICC brake switch connector. Check ICC brake switch. Refer to " «COMPONENT INSPECTION (ICC BRAKE SWITCH)»(ref-524071-S30178176652013012500000) ". Is the inspection result normal? YES: GO TO 5 . NO: Replace ICC brake switch.
CHECK ICC BRAKE HOLD RELAY Remove ICC brake hold relay. Check for continuity between ICC brake hold relay terminals. ICC brake hold relay Continuity Terminal 3 4 Existed Is the inspection result normal? YES: GO TO 6. NO: Replace ICC brake hold relay.
CHECK HARNESS BETWEEN ICC BRAKE HOLD RELAY AND ICC BRAKE SWITCH Check for continuity between ICC brake hold relay harness connector and ICC brake switch harness connector. ICC brake hold relay ICC brake switch Continuity Connector Terminal Connector Terminal E91 4 E114 1 Existed Check for continuity between ICC brake hold relay harness connector and ground. ICC brake hold relay Ground Continuity Connector Terminal E91 4 Not existed Is the inspection result normal? YES: GO TO 7. NO: Repair the harnesses or connectors.
CHECK HARNESS BETWEEN ECM AND ICC BRAKE SWITCH Disconnect ECM connector. Check for continuity between the ECM harness connector and ICC brake switch harness connector. ECM AND ICC BRAKE SWITCH CONTINUITY REFERENCE CHART (VQ35HR) ECM ICC brake switch Continuity Connector Terminal Connector Terminal M107 126 E114 2 Existed ECM AND ICC BRAKE SWITCH CONTINUITY REFERENCE CHART (VK50VE) ECM ICC brake switch Continuity Connector Terminal Connector Terminal M160 117 E114 2 Existed Check for continuity between ECM harness connector and ground. ECM HARNESS CONNECTOR CONTINUITY REFERENCE CHART (VQ35HR) ECM Ground Continuity Connector Terminal M107 126 Not existed ECM HARNESS CONNECTOR CONTINUITY REFERENCE CHART (VK50VE) ECM Ground Continuity Connector Terminal M160 117 Not existed Is the inspection result normal? YES: GO TO 12 . NO: Repair the harnesses or connectors.
CHECK STOP LAMP FOR ILLUMINATION Check the stop lamp for illumination. Is the inspection result normal? YES: GO TO 9. NO: Repair the stop lamp circuit.
CHECK ICC BRAKE HOLD RELAY Turn ignition switch OFF. Remove ICC brake hold relay. Check for continuity between ICC brake hold relay terminals. ICC brake hold relay Continuity Terminal 3 4 Existed 7 6 Not existed Is the inspection result normal? YES: GO TO 10. NO: Replace ICC brake hold relay.
CHECK HARNESS BETWEEN ECM AND ICC BRAKE HOLD RELAY Disconnect ECM, rear combination lamp, and high-mounted stop lamp connectors. Check for continuity between the ECM harness connector and ICC brake hold relay harness connector. ECM AND ICC BRAKE HOLD RELAY CONTINUITY REFERENCE CHART (VQ35HR) ECM ICC brake hold relay Continuity Connector Terminal Connector Terminal M107 122 E91 6 Existed ECM AND ICC BRAKE HOLD RELAY CONTINUITY REFERENCE CHART (VK50VE) ECM ICC brake hold relay Continuity Connector Terminal Connector Terminal M160 110 E91 6 Existed Check for continuity between ECM harness connector and ground. ECM HARNESS CONNECTOR CONTINUITY REFERENCE CHART (VQ35HR) ECM Ground Continuity Connector Terminal M107 122 Not existed ECM HARNESS CONNECTOR CONTINUITY REFERENCE CHART (VK50VE) ECM Ground Continuity Connector Terminal M160 110 Not existed Is the inspection result normal? YES: GO TO 11. NO: Repair the harnesses or connectors.
CHECK HARNESS BETWEEN BRAKE BOOSTER CONTROL UNIT AND ICC BRAKE HOLD RELAY Disconnect brake booster control unit connector. Check for continuity between the brake booster control unit harness connector and brake hold relay harness connector. Brake booster control unit ICC brake hold relay Continuity Connector Terminal Connector Terminal B249 47 E91 1 Existed Check for continuity between brake booster control unit harness connector and ground. Brake booster control unit Ground Continuity Connector Terminal B249 47 Not existed Is the inspection result normal? YES: GO TO 12. NO: Repair the harnesses or connectors.
PERFORM SELF-DIAGNOSIS OF ECM Connect all connectors again if the connectors are disconnected. Turn ignition switch ON. Perform "All DTC Reading". Check if any DTC is detected in "Self Diagnostic Result" of "ENGINE". Refer to " «DTC INDEX»(ref-524001-S15324713652013012500000) " (VQ35HR) or " «DTC INDEX»(ref-524019-S36613113262013012500000) " (VK50VE). Is any DTC detected? YES: Repair or replace the malfunctioning parts identified by the self-diagnosis result. NO: GO TO 13.
CHECK ICC BRAKE HOLD RELAY DRIVE SIGNAL OUTPUT Select the active test item "STOP LAMP" of "ICC/ADAS". Check if "STP LMP DRIVE" is turned ON when operating the test item. Is the inspection result normal? YES: Replace brake booster control unit. NO: Replace ICC sensor integrated unit. Refer to " «EXPLODED VIEW»(ref-524071-S36884752842013012500000) ".

Component Inspection (ICC Brake Switch)

CHECK ICC BRAKE SWITCH Check for continuity between ICC brake switch terminals. Terminal Condition Continuity 1 2 When brake pedal is depressed Not existed When brake pedal is released Existed Is the inspection result normal? YES: INSPECTION END NO: Replace ICC brake switch.

Component Inspection (Stop Lamp Switch)

CHECK STOP LAMP SWITCH Check for continuity between stop lamp switch terminals. Terminal Condition Continuity 1 2 When brake pedal is depressed Existed When brake pedal is released Not existed Is the inspection result normal? YES: INSPECTION END NO: Replace stop lamp switch.

DTC (On board display)	Trouble diagnosis name	DTC detecting condition	Possible causes
C1A06 (6)	OPERATION SW CIRC	If the input signal from ICC steering switch is malfunctioning	ICC steering switch circuit ICC steering switch ECM

Note. If DTC "C1A06" is detected along with DTC "U1000", first diagnose the DTC "U1000". Refer to " DTC LOGIC ".

PERFORM DTC CONFIRMATION PROCEDURE Start the engine. Wait for approximately 5 minutes after turning the MAIN switch of ICC system ON. Perform "All DTC Reading" with CONSULT. Check if the "C1A06" is detected as the current malfunction in "Self Diagnostic Result" of "ICC/ADAS". Is "C1A06" detected as the current malfunction? YES: Refer to " «DIAGNOSIS PROCEDURE»(ref-524071-S10038444982013012500000) ". NO: Refer to " «INTERMITTENT INCIDENT»(ref-523989-S35030212592013012500000) ".

CHECK SELF-DIAGNOSIS RESULTS Check if "U1000" is detected other than "C1A06" in "Self Diagnostic Result" of "ICC/ADAS". Is "U1000" detected? YES: Perform the CAN communication system inspection. Repair or replace the malfunctioning parts. Refer to " «DTC LOGIC»(ref-524036-S12359580072013012500000) ". NO: GO TO 2.
CHECK ICC STEERING SWITCH Turn the ignition switch OFF. Disconnect the ICC steering switch connector. Check the ICC steering switch. Refer to " «COMPONENT INSPECTION»(ref-524071-S13391632992013012500000) ". Is the inspection result normal? YES: GO TO 3 . NO: Replace the ICC steering switch.
CHECK HARNESS BETWEEN SPIRAL CABLE AND ECM Disconnect the ECM connector. Check for continuity between the spiral cable harness connector and ECM harness connector. SPIRAL CABLE AND ECM CONTINUITY REFERENCE CHART (VQ35HR) Spiral cable ECM Continuity Connector Terminal Connector Terminal M36 25 M107 101 Existed 32 108 SPIRAL CABLE AND ECM CONTINUITY REFERENCE CHART (VK50VE) Spiral cable ECM Continuity Connector Terminal Connector Terminal M36 25 M160 102 Existed 32 111 Check for continuity between spiral cable harness connector and ground. Spiral cable Ground Continuity Connector Terminal M36 25 Not existed 32 Is the inspection result normal? YES: GO TO 4. NO: Repair the harnesses or connectors.
CHECK SPIRAL CABLE Check for continuity between spiral cable terminals. Spiral cable Continuity Terminal 13 25 Existed 16 32 Is the inspection result normal? YES: GO TO 5. NO: Replace the spiral cable.
PERFORM SELF-DIAGNOSIS OF ECM Connect the connectors of ICC steering switch and ECM connector. Turn the ignition switch ON. Perform "All DTC Reading". Check if any DTC is detected in "Self Diagnostic Result" of "ENGINE". Is any DTC detected? YES: Perform self-diagnosis on the detected DTC and repair or replace the malfunctioning parts. Refer to " «DTC INDEX»(ref-524001-S15324713652013012500000) " (VQ35HR) or " «DTC INDEX»(ref-524019-S36613113262013012500000) " (VK50VE). NO: Replace the ICC sensor integrated unit. Refer to " «EXPLODED VIEW»(ref-524036-S26054163402013012500000) ".

Scheme 41

Scheme 41: Component Inspection

CHECK ICC STEERING SWITCH Check resistance between ICC steering switch terminals. Terminal Switch operation Resistance [ohms] 13 16 When pressing MAIN switch Approx. 0 When pressing dynamic driver assistance switch Approx. 267 When pressing CANCEL switch Approx. 615 When pressing DISTANCE switch Approx. 1090 When pressing SET/COAST switch Approx. 1805 When pressing RESUME/ACCELERATE switch Approx. 2985 When all switches are not pressed Approx. 5415 Is the inspection result normal? YES: INSPECTION END NO: Replace the ICC steering switch.

DTC (On board display)	Trouble diagnosis name	DTC detecting condition	Possible causes
C1A08 (8)	PRESS SEN CIRCUIT	If the brake pressure sensor value that is input to the brake booster control unit is malfunctioning	Brake pressure sensor circuit Brake pressure sensor Brake booster control unit

Note. If DTC "C1A08" is detected along with DTC "U1000", first diagnose the DTC "U1000". Refer to " ICC SENSOR INTEGRATED UNIT: DTC LOGIC ".

PERFORM DTC CONFIRMATION PROCEDURE Start the engine. Turn the DCA system ON. Perform "All DTC Reading" with CONSULT. Check that the "C1A08" is detected as the current malfunction in self-diagnosis results of "ICC/ADAS". Is "C1A08" detected as the current malfunction? YES: Refer to " «DIAGNOSIS PROCEDURE»(ref-524071-S09750284462013012500000) ". NO: Refer to " «INTERMITTENT INCIDENT»(ref-523989-S35030212592013012500000) ".

CHECK SELF-DIAGNOSIS RESULTS Check if "U1000" is detected other than "C1A08" in "Self Diagnostic Result" of "ICC/ADAS". Is "U1000" detected? YES: Perform the CAN communication system inspection. Repair or replace the malfunctioning parts. Refer to " «ICC SENSOR INTEGRATED UNIT: DTC LOGIC»(ref-524071-S20280562102013012500000) ". NO: GO TO 2.
CHECK HARNESS BETWEEN BRAKE BOOSTER CONTROL UNIT AND BRAKE PRESSURE SENSOR Turn the ignition switch OFF. Disconnect connectors of brake booster control unit and brake pressure sensor. Check for continuity between the brake booster control unit harness connector and brake pressure sensor harness connector. Brake booster control unit Brake pressure sensor Continuity Connector Terminal Connector Terminal B250 8 E45 3 Existed 17 2 24 1 Check for continuity between brake booster control unit harness connector and ground. Brake booster control unit Ground Continuity Connector Terminal B250 8 Not existed 17 24 Is the inspection result normal? YES: GO TO 3. NO: Repair the harnesses or connectors.
CHECK BRAKE PRESSURE SENSOR POWER SUPPLY CIRCUIT Connect connectors of brake booster control unit and brake pressure sensor. Turn the ignition switch ON. Check voltage between brake booster control unit harness connectors. Terminals Voltage (Approx.) (+) (-) Brake booster control unit Connector Terminal B250 8 24 5 V Is the inspection result normal? YES: Replace the brake pressure sensor. NO: Replace the brake booster control unit.

DTC (On board display)	Trouble diagnosis name	DTC detecting condition	Possible causes
C1A09 (9)	BOOSTER SOL/V CIRC	If the booster solenoid is malfunctioning	Booster solenoid Booster solenoid circuit Brake booster control unit

Note. If DTC "C1A09" is detected along with DTC "U1000", first diagnose the DTC "U1000". Refer to " ICC SENSOR INTEGRATED UNIT: DTC LOGIC ".

PERFORM DTC CONFIRMATION PROCEDURE Start the engine. Perform the active test item "BOOSTER SOL/V" with CONSULT. Perform "All DTC Reading". Check if the "C1A09" is detected as the current malfunction in self-diagnosis results of "ICC/ADAS". Is "C1A09" detected as the current malfunction? YES: Refer to " «DIAGNOSIS PROCEDURE»(ref-524071-S10906337812013012500000) ". NO: Refer to " «INTERMITTENT INCIDENT»(ref-523989-S35030212592013012500000) ".

CHECK SELF-DIAGNOSIS RESULTS Check if "U1000" is detected other than "C1A09" in "Self Diagnostic Result" of "ICC/ADAS". Is "U1000" detected? YES: Perform the CAN communication system inspection. Repair or replace the malfunctioning parts. Refer to " «ICC SENSOR INTEGRATED UNIT: DTC LOGIC»(ref-524071-S20280562102013012500000) ". NO: GO TO 2.
CHECK BRAKE BOOSTER CONTROL UNIT POWER SUPPLY CIRCUIT Check power supply and ground circuit of brake booster control unit. Refer to " «BRAKE BOOSTER CONTROL UNIT: DIAGNOSIS PROCEDURE»(ref-524071-S39287988512013012500000) ". Is the inspection result normal? YES: GO TO 3. NO: Repair or replace the malfunctioning parts.
CHECK HARNESS BETWEEN BRAKE BOOSTER (BOOSTER SOLENOID) AND BRAKE BOOSTER CONTROL UNIT Turn the ignition switch OFF. Disconnect connectors of brake booster control unit and brake booster. Check for continuity between the brake booster control unit harness connector and brake booster harness connector. Brake booster control unit Brake booster Continuity Connector Terminal Connector Terminal B250 10 E44 4 Existed 12 6 Check for continuity between brake booster control unit harness connector and ground. Brake booster control unit Ground Continuity Connector Terminal B250 10 Not existed 12 Is the inspection result normal? YES: GO TO 4. NO: Repair the harnesses or connectors.
CHECK BOOSTER SOLENOID Check the booster solenoid. Refer to " «COMPONENT INSPECTION»(ref-524071-S19087625512013012500000) ". Is the inspection result normal? YES: Replace the brake booster control unit. NO: Replace the brake booster.

Component Inspection

CHECK BRAKE BOOSTER (BOOSTER SOLENOID) Check resistance between brake booster (booster solenoid) terminals.

Brake booster		Resistance
Terminal		Resistance
4	6	Approx. 1.4 ohms

Is the inspection result normal?

YES: INSPECTION END

NO: Replace the brake booster.

Scheme 42

DTC (On board display)	Trouble diagnosis name	DTC detecting condition	Possible causes
C1A10 (10)	RELEASE SW CIRC	If the release switch NO signal and the release switch NC signal, received from the brake booster control unit via ITS communication, are inconsistent	Release switch Release switch circuit Brake booster control unit

Note. If DTC "C1A10" is detected along with DTC "U1000", first diagnose the DTC "U1000". Refer to " ICC SENSOR INTEGRATED UNIT: DTC LOGIC ".

PERFORM DTC CONFIRMATION PROCEDURE (1) Start the engine. Turn the DCA system ON, and wait for 5 minutes or more. Perform "All DTC Reading" with CONSULT. Check if the "C1A10" is detected as the current malfunction in self-diagnosis results of "ICC/ADAS". Is "C1A10" detected as the current malfunction? YES: Refer to " «DIAGNOSIS PROCEDURE»(ref-524071-S11463841272013012500000) ". NO: GO TO 2.
PERFORM DTC CONFIRMATION PROCEDURE (2) Depress the brake pedal strongly 10 times or more. Perform "All DTC Reading". Check if the "C1A10" is detected as the current malfunction in self-diagnosis results of "ICC/ADAS". Is "C1A10" detected as the current malfunction? YES: Refer to " «DIAGNOSIS PROCEDURE»(ref-524071-S11463841272013012500000) ". NO: Refer to " «INTERMITTENT INCIDENT»(ref-523989-S35030212592013012500000) ".

CHECK SELF-DIAGNOSIS RESULTS Check if "U1000" is detected other than "C1A10" in "Self Diagnostic Result" of "ICC/ADAS". Is "U1000" detected? YES: Perform the CAN communication system inspection. Repair or replace the malfunctioning parts. Refer to " «ICC SENSOR INTEGRATED UNIT: DTC LOGIC»(ref-524071-S20280562102013012500000) ". NO: GO TO 2.
CHECK HARNESS BETWEEN BRAKE BOOSTER (RELEASE SWITCH) AND BRAKE BOOSTER CONTROL UNIT Turn the ignition switch OFF. Disconnect connectors of brake booster and brake booster control unit. Check for continuity between the brake booster control unit harness connector and brake booster harness connector. Brake booster control unit Brake booster Continuity Connector Terminal Connector Terminal B250 6 E44 1 Existed 15 3 22 2 Check for continuity between brake booster control unit harness connector and ground. Brake booster control unit Ground Continuity Connector Terminal B250 6 Not existed 15 22 Is the inspection result normal? YES: GO TO 3. NO: Repair the harnesses or connectors.
CHECK RELEASE SWITCH POWER SUPPLY CIRCUIT Connect the brake booster control unit connector. Turn the ignition switch ON. Check voltage between brake booster control unit harness connector and ground. Terminal Voltage (Approx.) (+) (-) Brake booster control unit Ground Connector Terminal B250 6 10 V Is the inspection result normal? YES: GO TO 4. NO: Replace the brake booster control unit.
CHECK RELEASE SWITCH Check the release switch. Refer to " «COMPONENT INSPECTION»(ref-524071-S14816993402013012500000) ". Is the inspection result normal? YES: Replace the brake booster control unit. NO: Replace the brake booster.

CHECK BRAKE BOOSTER (RELEASE SWITCH) Check for continuity between brake booster (release switch) terminals. Condition 1 - 3 1 - 2 2 - 3 Brake pedal not depressed Continuity No continuity No continuity Brake pedal depressed No continuity NOTE Continuity NOTE No continuity NOTE: If the depressing force is weak, it may not be changed. Is the inspection result normal? YES: INSPECTION END NO: Replace the brake booster.

DTC (On board display)	Trouble diagnosis name	DTC detecting condition	Possible causes
C1A11 (11)	PRESSURE CONTROL	If the brake booster is malfunctioning	Brake booster

Note. If DTC "C1A11" is detected along with DTC "U1000", first diagnose the DTC "U1000". Refer to " ICC SENSOR INTEGRATED UNIT: DTC LOGIC ".

PERFORM DTC CONFIRMATION PROCEDURE Start the engine. Perform the active test item "BOOSTER SOL/V" with CONSULT. Perform "All DTC Reading". Check if the "C1A11" is detected as the current malfunction in self-diagnosis results of "ICC/ADAS". Is "C1A11" detected as the current malfunction? YES: Refer to " «DIAGNOSIS PROCEDURE»(ref-524071-S21083839402013012500000) ". NO: Refer to " «INTERMITTENT INCIDENT»(ref-523989-S35030212592013012500000) ".

CHECK SELF-DIAGNOSIS RESULTS Check if "U1000" is detected other than "C1A11" in "Self Diagnostic Result" of "ICC/ADAS". Is "U1000" detected? YES: Perform the CAN communication system inspection. Repair or replace the malfunctioning parts. Refer to " «ICC SENSOR INTEGRATED UNIT: DTC LOGIC»(ref-524071-S20280562102013012500000) ". NO: GO TO 2.
CHECK BRAKE OPERATION Check if the brake operates normally. Does it operate normally? YES: GO TO 4 . NO: GO TO 3.
BRAKE LINE INSPECTION Check the brake system, and then repair malfunctioning parts. Erases All self-diagnosis results. Perform "BOOSTER SOL/V" on "Active Test" of "ICC/ADAS". Does it operate normally? YES: INSPECTION END NO: GO TO 4.
CHECK BOOSTER SOLENOID Check the booster solenoid. Refer to " «COMPONENT INSPECTION»(ref-524071-S35973534272013012500000) ". Is the inspection result normal? YES: GO TO 5. NO: Replace the brake booster.
CHECK HARNESS BETWEEN BRAKE BOOSTER (BOOSTER SOLENOID) AND BRAKE BOOSTER CONTROL UNIT Turn the ignition switch OFF. Disconnect connectors of brake booster control unit and brake booster. Check for continuity between the brake booster control unit harness connector and brake booster harness connector. Brake booster control unit Brake booster Continuity Connector Terminal Connector Terminal B250 10 E44 4 Existed 12 6 Check for continuity between brake booster control unit harness connector and ground. Brake booster control unit Ground Continuity Connector Terminal B250 10 Not existed 12 Is the inspection result normal? YES: Replace the brake booster control unit. NO: Repair the harnesses or connectors.

CHECK BRAKE BOOSTER (BOOSTER SOLENOID) Check resistance between brake booster (booster solenoid) terminals.

Brake booster		Resistance
Terminal		Resistance
4	6	Approx. 1.4 ohms

Is the inspection result normal?

YES: INSPECTION END

NO: Replace the brake booster.

DTC (On board display)	Trouble diagnosis name	DTC detecting condition	Possible causes
C1A12 (12)	LASER BEAM OFFCNTR	Laser beam of ICC sensor integrated unit is off the aiming point	Laser beam is off the aiming point

ADJUST LASER BEAM AIMING Adjust the laser beam aiming with CONSULT. Refer to " «LASER BEAM AIMING ADJUSTMENT: DESCRIPTION»(ref-524036-S14731576282013012500000) ". Perform "All DTC Reading". Check if the "C1A12" is detected in "Self Diagnostic Result" of "ICC/ADAS". Is "C1A12" detected? YES: Replace ICC sensor integrated unit. Refer to " «EXPLODED VIEW»(ref-524071-S36884752842013012500000) ". NO: INSPECTION END

DTC (On board display)	Trouble diagnosis name	DTC detecting condition	Possible causes
C1A13 (13)	STOP LAMP RLY FIX	If the stop lamp is not activated even though the ICC sensor integrated unit is transmitting a ICC brake hold relay drive signal. If the stop lamp is activated even though the ICC sensor integrated unit is not transmitting a ICC brake hold relay drive signal.	Stop lamp switch circuit ICC brake switch circuit ICC brake hold relay circuit Stop lamp switch ICC brake switch ICC brake hold relay Incorrect stop lamp switch installation Incorrect ICC brake switch installation ECM

Note. If DTC "C1A13" is detected along with DTC "U1000", first diagnose the DTC "U1000". Refer to " ICC SENSOR INTEGRATED UNIT: DTC LOGIC ".

PERFORM DTC CONFIRMATION PROCEDURE (1) Start the engine. Perform the active test item "STOP LAMP" with CONSULT. Perform "All DTC Reading". Check if the "C1A13" is detected as the current malfunction in the self-diagnosis results of "ICC/ADAS". Is "C1A13" detected as the current malfunction? YES: Refer to " «DIAGNOSIS PROCEDURE»(ref-524071-S38122146342013012500000) ". NO: GO TO 2.
PERFORM DTC CONFIRMATION PROCEDURE (2) Drive at the vehicle speed of 40 km/h (25 MPH) or more for approximately 20 seconds or more without the brake pedal depressed. CAUTION: Always drive safely. NOTE: If it is outside the above conditions, repeat the step 1 . Perform "All DTC Reading". Check if the "C1A13" is detected as the current malfunction in the self-diagnosis results of "ICC/ADAS". Is "C1A13" detected as the current malfunction? YES: Refer to " «DIAGNOSIS PROCEDURE»(ref-524071-S38122146342013012500000) ". NO: Refer to " «INTERMITTENT INCIDENT»(ref-523989-S35030212592013012500000) ".

CHECK SELF-DIAGNOSIS RESULTS Check if "U1000" is detected other than "C1A13" in "Self Diagnostic Result" of "ICC/ADAS". Is "U1000" detected? YES: Perform the CAN communication system inspection. Repair or replace the malfunctioning parts. Refer to " «ICC SENSOR INTEGRATED UNIT: DTC LOGIC»(ref-524071-S20280562102013012500000) ". NO: GO TO 2.
CHECK STOP LAMP SWITCH AND ICC BRAKE SWITCH Check that "STOP LAMP SW" and "BRAKE SW" operate normally in "DATA MONITOR" of "ICC/ADAS". Is the inspection result normal? YES: GO TO 12 . NO-1: When "BRAKE SW" operation is malfunctioning: GO TO 3 . NO-2: When "STOP LAMP SW" operation is malfunctioning: GO TO 9 .
CHECK ICC BRAKE SWITCH INSTALLATION Turn ignition switch OFF. Check ICC brake switch for correct installation. Refer to " «INSPECTION AND ADJUSTMENT»(ref-524027-S30740243072013012500000) ". Is the inspection result normal? YES: GO TO 4. NO: Adjust ICC brake switch installation. Refer to " «INSPECTION AND ADJUSTMENT»(ref-524027-S30740243072013012500000) ".
CHECK ICC BRAKE SWITCH Disconnect ICC brake switch connector. Check ICC brake switch. Refer to " «COMPONENT INSPECTION (ICC BRAKE SWITCH)»(ref-524071-S30178176652013012500000) ". Is the inspection result normal? YES: GO TO 5 . NO: Replace ICC brake switch.
CHECK ICC BRAKE HOLD RELAY Remove ICC brake hold relay. Check for continuity between ICC brake hold relay terminals. ICC brake hold relay Continuity Terminal 3 4 Existed Is the inspection result normal? YES: GO TO 6. NO: Replace ICC brake hold relay.
CHECK HARNESS BETWEEN ICC BRAKE HOLD RELAY AND ICC BRAKE SWITCH Check for continuity between ICC brake hold relay harness connector and ICC brake switch harness connector. ICC brake hold relay ICC brake switch Continuity Connector Terminal Connector Terminal E91 4 E114 1 Existed Check for continuity between ICC brake hold relay harness connector and ground. ICC brake hold relay Ground Continuity Connector Terminal E91 4 Not existed Is the inspection result normal? YES: GO TO 7. NO: Repair the harnesses or connectors.
CHECK HARNESS BETWEEN ECM AND ICC BRAKE SWITCH Disconnect ECM connector. Check for continuity between the ECM harness connector and ICC brake switch harness connector. ECM AND ICC BRAKE SWITCH CONTINUITY REFERENCE CHART (VQ35HR) ECM ICC brake switch Continuity Connector Terminal Connector Terminal M107 126 E114 2 Existed ECM AND ICC BRAKE SWITCH CONTINUITY REFERENCE CHART (VK50VE) ECM ICC brake switch Continuity Connector Terminal Connector Terminal M160 117 E114 2 Existed Check for continuity between ECM harness connector and ground. ECM HARNESS CONNECTOR CONTINUITY REFERENCE CHART (VQ35HR) ECM Ground Continuity Connector Terminal M107 126 Not existed ECM HARNESS CONNECTOR CONTINUITY REFERENCE CHART (VK50VE) ECM Ground Continuity Connector Terminal M160 117 Not existed Is the inspection result normal? YES: GO TO 8. NO: Repair the harnesses or connectors.
CHECK ICC BRAKE HOLD RELAY POWER SUPPLY CIRCUIT Connect ECM connector. Turn the ignition switch ON. Check the voltage between ICC brake hold relay harness connector and ground. Terminals Voltage (Approx.) (+) (-) ICC brake hold relay Ground Connector Terminal E91 3 Battery voltage Is the inspection result normal? YES: GO TO 20 . NO: Repair ICC brake hold relay power supply circuit.
CHECK STOP LAMP FOR ILLUMINATION Turn the ignition switch OFF. Remove ICC brake hold relay. Check that the stop lamp is illuminated by depressing the brake pedal to turn the stop lamp ON. Is the inspection result normal? YES: GO TO 10 . NO: Check the stop lamp circuit, and repair or replace the malfunctioning parts.
CHECK ICC BRAKE HOLD RELAY CIRCUIT Connect ICC brake hold relay. Disconnect the stop lamp switch connector. Check that the stop lamp does not illuminate when brake pedal is not depressed. Is the inspection result normal? YES: GO TO 20 . NO: GO TO 11.
CHECK ICC BRAKE HOLD RELAY Remove ICC brake hold relay. Check for continuity between ICC brake hold relay terminals. ICC brake hold relay Continuity Terminal 7 6 Not existed Is the inspection result normal? YES: GO TO 20 . NO: Replace ICC brake hold relay.
CHECK HARNESS BETWEEN BRAKE BOOSTER CONTROL UNIT AND ICC BRAKE HOLD RELAY Turn ignition switch OFF. Disconnect brake booster control unit connector and remove ICC brake hold relay. Check for continuity between the brake booster control unit harness connector and ICC brake hold relay harness connector. Brake booster control unit ICC brake hold relay Continuity Connector Terminal Connector Terminal B249 47 E91 1 Existed Check for continuity between brake booster control unit harness connector and ground. Brake booster control unit Ground Continuity Connector Terminal B249 47 Not existed Is the inspection result normal? YES: GO TO 13. NO: Repair the harnesses or connectors.
CHECK HARNESS BETWEEN ICC BRAKE HOLD RELAY AND GROUND Check for continuity between ICC brake hold relay harness connector and ground. ICC brake hold relay Ground Continuity Connector Terminal E91 2 Existed Is the inspection result normal? YES: GO TO 14. NO: Repair the harnesses or connectors.
CHECK ICC BRAKE HOLD RELAY Check resistance between ICC brake hold relay terminals. ICC brake hold relay Resistance Terminal 1 2 Approx. 75 ohms Is the inspection result normal? YES: GO TO 15. NO: Replace ICC brake hold relay.
CHECK BRAKE BOOSTER CONTROL UNIT OUTPUT VOLTAGE Connect the brake booster control unit connector. Turn ignition switch ON. Perform "STOP LAMP" on "Active Test" of "ICC/ADAS", and then check the voltage between ICC brake hold relay harness connector and ground. Terminal Condition Voltage (Approx.) (+) (-) ICC brake hold relay Ground Active Test item "STOP LAMP" Connector Terminal E91 1 Off 0 V On Battery voltage Is the inspection result normal? YES: GO TO 16. NO: GO TO 21 .
CHECK ICC BRAKE HOLD RELAY POWER SUPPLY CIRCUIT Turn ignition switch OFF. Check the voltage between ICC brake hold relay harness connector and ground. Terminal Voltage (Approx.) (+) (-) ICC brake hold relay Ground Connector Terminal E91 7 Battery voltage Is the inspection result normal? YES: GO TO 17. NO: Repair or replace ICC brake hold relay power supply circuit.
CHECK HARNESS BETWEEN ICC BRAKE HOLD RELAY AND ECM Disconnect ECM, rear combination lamp, and high-mounted stop lamp connectors. Check for continuity between ICC brake hold relay harness connector and ECM harness connector. ICC BRAKE HOLD RELAY AND ECM CONTINUITY REFERENCE CHART (VQ35HR) ICC brake hold relay ECM Continuity Connector Terminal Connector Terminal E91 6 M107 122 Existed ICC BRAKE HOLD RELAY AND ECM CONTINUITY REFERENCE CHART (VK50VE) ICC brake hold relay ECM Continuity Connector Terminal Connector Terminal E91 6 M160 110 Existed Check for continuity between ICC brake hold relay harness connector and ground. ICC brake hold relay Ground Continuity Connector Terminal E91 6 Not existed Is the inspection result normal? YES: GO TO 18. NO: Repair the harnesses or connectors.
CHECK ICC BRAKE HOLD RELAY Connect ECM, rear combination lamp, and high-mounted stop lamp connectors and ICC brake hold relay. Disconnect the stop lamp switch connector. Turn ignition switch ON. Perform "STOP LAMP" on "Active Test" of "ICC/ADAS", and then check the stop lamp for illumination. Is the inspection result normal? YES: GO TO 19. NO: Replace ICC brake hold relay.
CHECK ICC BRAKE SWITCH STANDARD VOLTAGE Turn ignition switch OFF. Connect the stop lamp switch connector. Turn ignition switch ON. Perform "STOP LAMP" on "Active Test" of "ICC/ADAS", and then check the voltage between ICC brake switch harness connector and ground. Terminal Condition Voltage (Approx.) (+) (-) ICC brake switch Ground Active Test item "STOP LAMP" Connector Terminal E114 1 Off Battery voltage On 0 V Is the inspection result normal? YES: GO TO 20. NO: Replace ICC brake hold relay.
PERFORM SELF-DIAGNOSIS OF ECM Connect all connectors again if the connectors are disconnected. Turn ignition switch ON. Perform "All DTC Reading". Check if any DTC is detected in "Self Diagnostic Result" of "ENGINE". Refer to " «DTC INDEX»(ref-524001-S15324713652013012500000) " (VQ35HR) or " «DTC INDEX»(ref-524019-S36613113262013012500000) " (VK50VE). Is any DTC detected? YES: Repair or replace the malfunctioning parts identified by the self-diagnosis result. NO: GO TO 21.
CHECK ICC BRAKE HOLD RELAY DRIVE SIGNAL OUTPUT Select the active test item "STOP LAMP" of "ICC/ADAS". Check that "STP LMP DRIVE" is turned ON when operating the test item. Is the inspection result normal? YES: Replace brake booster control unit. NO: Replace the ICC sensor integrated unit. Refer to " «EXPLODED VIEW»(ref-524071-S36884752842013012500000) ".

CHECK ICC BRAKE HOLD RELAY Apply battery voltage to ICC brake hold relay terminals 1 and 2, and then check for continuity under the following conditions

Condition	Terminal		Continuity
When the battery voltage is applied	3	4	Not existed
When the battery voltage is applied	7	6	Existed
When the battery voltage is not applied	3	4	Existed
When the battery voltage is not applied	7	6	Not existed

Is the inspection result normal?

YES: INSPECTION END

NO: Replace ICC brake hold relay.

Scheme 43

DTC (On board display)	Trouble diagnosis name	DTC detecting condition	Possible causes
C1A14 (14)	ECM CIRCUIT	If ECM is malfunctioning	Accelerator pedal position sensor ECM ICC sensor integrated unit

Note. If DTC "C1A14" is detected along with DTC "U1000", first diagnose the DTC "U1000". Refer to " ICC SENSOR INTEGRATED UNIT: DTC LOGIC ".

PERFORM DTC CONFIRMATION PROCEDURE Start the engine. Operate the ICC system and drive. CAUTION: Always drive safely. Stop the vehicle. Perform "All DTC Reading" with CONSULT. Check if the "C1A14" is detected as the current malfunction in self-diagnosis results of "ICC/ADAS". Is "C1A14" detected as the current malfunction? YES: Refer to " «DIAGNOSIS PROCEDURE»(ref-524071-S39099860662013012500000) ". NO: Refer to " «INTERMITTENT INCIDENT»(ref-523989-S35030212592013012500000) ".

CHECK SELF-DIAGNOSIS RESULTS Check if "U1000" is detected other than "C1A14" in "Self Diagnostic Result" of "ICC/ADAS". Is "U1000" detected? YES: Perform the CAN communication system inspection. Repair or replace the malfunctioning parts. Refer to " «ICC SENSOR INTEGRATED UNIT: DTC LOGIC»(ref-524071-S20280562102013012500000) ". NO: GO TO 2.
PERFORM SELF-DIAGNOSIS OF ECM Check if any DTC is detected in "Self Diagnostic Result" of "ENGINE". Is any DTC detected? YES: Perform diagnosis on the detected DTC and repair or replace the malfunctioning parts. Refer to " «DTC INDEX»(ref-524001-S15324713652013012500000) " (VQ35HR) or " «DTC INDEX»(ref-524019-S36613113262013012500000) " (VK50VE). NO: Replace the ICC sensor integrated unit. Refer to " «EXPLODED VIEW»(ref-524071-S36884752842013012500000) ".

DTC (On board display)	Trouble diagnosis name	DTC detecting condition	Possible causes
C1A15 (15)	GEAR POSITION	If a mismatch occurs between an shift position signal transmitted from TCM via CAN communication and the gear position calculated by ICC sensor integrated unit	Input speed sensor Vehicle speed sensor A/T (output speed sensor) TCM

Note. If DTC "C1A15" is detected along with DTC "U1000", "C1A03" or "C1A04", first diagnose the DTC "U1000", "C1A03" or "C1A04". Refer to " ICC SENSOR INTEGRATED UNIT: DTC LOGIC " for DTC "U1000". Refer to " DTC LOGIC " for DTC "C1A03". Refer to " DTC LOGIC " for DTC "C1A04".

PERFORM DTC CONFIRMATION PROCEDURE Start the engine. Turn the DCA system ON. Drive the vehicle at 10 km/h (6 MPH) or faster for approximately 15 minutes or more. CAUTION: Always drive safely. Stop the vehicle. Perform "All DTC Reading" with CONSULT. Check if the "C1A15" is detected as the current malfunction in the self-diagnosis results of "ICC/ADAS". Is "C1A15" detected as the current malfunction? YES: Refer to " «DIAGNOSIS PROCEDURE»(ref-524071-S32450956082013012500000) ". NO: Refer to " «INTERMITTENT INCIDENT»(ref-523989-S35030212592013012500000) ".

CHECK SELF-DIAGNOSIS RESULTS Check if "C1A03", "C1A04", or "U1000" is detected other than "C1A15" in "Self Diagnostic Result" of "ICC/ADAS". Is any DTC detected? YES: Perform diagnosis on the detected DTC and repair or replace the malfunctioning parts. Refer to " «DTC INDEX»(ref-524071-S16725429442013012500000) " (ICC/ADAS). NO: GO TO 2.
CHECK VEHICLE SPEED SIGNAL Check that "VHCL SPEED SE" operates normally in "DATA MONITOR" of "ICC/ADAS". CAUTION: Be careful of the vehicle speed. Is the inspection result normal? YES: GO TO 3. NO: GO TO 7 .
CHECK GEAR POSITION Check that "GEAR" operates normally in "DATA MONITOR" of "ICC/ADAS". CAUTION: Be careful of the vehicle speed. Is the inspection result normal? YES: GO TO 5 . NO: GO TO 4.
CHECK GEAR POSITION SIGNAL Check that "GEAR" operates normally in "DATA MONITOR" of "TRANSMISSION". Is the inspection result normal? YES: GO TO 5. NO: GO TO 6 .
CHECK INPUT SPEED SENSOR SIGNAL Check that "INPUT SPEED" operates normally in "DATA MONITOR" of "TRANSMISSION". Is the inspection result normal? YES: Replace the ICC sensor integrated unit. Refer to " «EXPLODED VIEW»(ref-524071-S36884752842013012500000) ". NO: GO TO 6.
CHECK TCM SELF-DIAGNOSIS RESULTS Perform "All DTC Reading". Check if any DTC is detected in "Self Diagnostic Result" of "TRANSMISSION". Is any DTC detected? YES: Perform diagnosis on the detected DTC and repair or replace the malfunctioning parts. Refer to " «DTC INDEX»(ref-524009-S40785710712013012500000) " (VQ35HR) or " «DTC INDEX»(ref-524019-S36613113262013012500000) " (VK50VE). NO: Replace the ICC sensor integrated unit. Refer to " «EXPLODED VIEW»(ref-524071-S36884752842013012500000) ".
CHECK ABS ACTUATOR AND ELECTRIC UNIT (CONTROL UNIT) SELF-DIAGNOSIS RESULTS Perform "All DTC Reading". Check if any DTC is detected in "Self Diagnostic Result" of "ABS". Is any DTC detected? YES: Perform diagnosis on the detected DTC and repair or replace the malfunctioning parts. Refer to " «DTC INDEX»(ref-524026-S23650152162013012500000) ". NO: Replace the ICC sensor integrated unit. Refer to " «EXPLODED VIEW»(ref-524071-S36884752842013012500000) ".

DTC (On board display)	Trouble diagnosis name	DTC detecting condition	Possible causes
C1A16 (16)	RADAR STAIN	If any stain occurs to ICC sensor integrated unit body window	Stain or foreign materials is deposited Cracks or scratches exist

Note. DTC "C1A16" may be detected under the following conditions: (Explain to the customer about the difference between the contamination detection function and the indication when the error is detected and tell them "This is not malfunction".) When contamination or foreign materials adhere on the ICC sensor integrated unit body window When driving while it is snowing or when frost forms on the ICC sensor integrated unit body window When the ICC sensor integrated unit body window is temporarily fogged

VISUAL CHECK 1 Check ICC sensor integrated unit body window for contamination and foreign materials. Does contamination or foreign materials adhere? YES: Wipe out the contamination and foreign materials from the ICC sensor integrated unit body window. NO: GO TO 2.
VISUAL CHECK 2 Check ICC sensor integrated unit body window for cracks and scratches. Is it found? YES: Replace the ICC sensor integrated unit. Refer to " «EXPLODED VIEW»(ref-524071-S36884752842013012500000) ". NO: GO TO 3.
INTERVIEW Ask if there is any trace of contamination or foreign materials adhering to the ICC sensor integrated unit body window. Ask if ICC sensor integrated unit body window was frosted during driving or if vehicle was driven in snow. Ask if ICC sensor integrated unit body window was temporarily fogged. (Windshield glass may also tend to fog, etc.) What is the result of the interview with the customer? YES: Explain to the customer about the difference between the contamination detection function and the indication when the malfunction is detected and tell them "This is not malfunction". NO: Replace the ICC sensor integrated unit. Refer to " «EXPLODED VIEW»(ref-524071-S36884752842013012500000) ".

DTC (On board display)	Trouble diagnosis name	DTC detecting condition	Possible causes
C1A18 (18)	LASER AIMING INCMP	Laser beam aiming of ICC sensor integrated unit is not adjusted	No laser beam aiming adjustment is performed Laser beam aiming adjustment has been interrupted

PERFORM DTC CONFIRMATION PROCEDURE Start the engine. Turn the DCA system ON. Perform "All DTC Reading" with CONSULT. Check if the "C1A18" is detected as the current malfunction in self-diagnosis results of "ICC/ADAS". Is "C1A18" detected as the current malfunction? YES: Refer to " «DIAGNOSIS PROCEDURE»(ref-524071-S17770726432013012500000) ". NO: INSPECTION END

ADJUST LASER BEAM AIMING Adjust the laser beam aiming. Refer to " «LASER BEAM AIMING ADJUSTMENT: DESCRIPTION»(ref-524036-S14731576282013012500000) ". Erase All self-diagnosis results with CONSULT. Perform "All DTC Reading". Check if the "C1A18" is detected in "Self Diagnostic Result" of "ICC/ADAS". Is "C1A18" detected? YES: Replace the ICC sensor integrated unit. Refer to " «EXPLODED VIEW»(ref-524071-S36884752842013012500000) ". NO: INSPECTION END

DTC (On board display)	Trouble diagnosis name	DTC detecting condition	Possible causes
C1A21 (21)	UNIT HIGH TEMP	If the temperature sensor (integrated in the ICC sensor integrated unit) detects a high temperature	Temperature around ICC sensor integrated unit is excessively high

PERFORM DTC CONFIRMATION PROCEDURE Turn the ignition switch OFF. Wait for 10 minutes or more and cool the ICC sensor integrated unit. Start the engine. Turn the DCA system ON. Perform "All DTC Reading" with CONSULT. Check if the "C1A21" is detected as the current malfunction in self-diagnosis results of "ICC/ADAS". Is "C1A21" detected as the current malfunction? YES: Refer to " «DIAGNOSIS PROCEDURE»(ref-524071-S07891771952013012500000) ". NO: Refer to " «INTERMITTENT INCIDENT»(ref-523989-S35030212592013012500000) ".

CHECK ENGINE COOLING SYSTEM Check for any malfunctions in engine cooling system. Is engine cooling system normal? YES: Replace the ICC sensor integrated unit. Refer to " «EXPLODED VIEW»(ref-524071-S36884752842013012500000) ". NO: Repair engine cooling system.

DTC (On board display)	Trouble diagnosis name	DTC detecting condition	Possible causes
C1A22 (22)	BCU CIRCUIT	If the brake booster control unit cannot control the brake booster	Stop lamp switch circuit ICC brake switch circuit Stop lamp switch ICC brake switch Incorrect stop lamp switch installation Incorrect ICC brake switch installation ECM Brake booster control unit

Note. If DTC "C1A22" is detected along with DTC "U1000", first diagnose the DTC "U1000". Refer to " ICC SENSOR INTEGRATED UNIT: DTC LOGIC ".

PERFORM DTC CONFIRMATION PROCEDURE Start the engine. Turn the DCA system ON. Perform "All DTC Reading" with CONSULT. Check if the "C1A22" is detected as the current malfunction in self-diagnosis results of "ICC/ADAS". Is "C1A22" detected as the current malfunction? YES: Refer to " «DIAGNOSIS PROCEDURE»(ref-524071-S31434602672013012500000) ". NO: Refer to " «INTERMITTENT INCIDENT»(ref-523989-S35030212592013012500000) ".

CHECK SELF-DIAGNOSIS RESULTS Check if "C1A05" or "U1000" is detected other than "C1A22" in "Self Diagnostic Result" of "ICC/ADAS". Is any DTC detected? YES: Perform diagnosis on the detected DTC and repair or replace the malfunctioning parts. Refer to " «DTC INDEX»(ref-524071-S16725429442013012500000) " (ICC/ADAS). NO: GO TO 2.
CHECK STOP LAMP SWITCH AND ICC BRAKE SWITCH Check that "STOP LAMP SW" and "BRAKE SW" operate normally in "DATA MONITOR" of "ICC/ADAS". Is the inspection result normal? YES: GO TO 10 . NO-1: When "BRAKE SW" operation is malfunctioning: GO TO 3 . NO-2: When "STOP LAMP SW" operation is malfunctioning: GO TO 5 .
CHECK ICC BRAKE SWITCH INSTALLATION Turn the ignition switch OFF. Check ICC brake switch for correct installation. Refer to " «INSPECTION AND ADJUSTMENT»(ref-524027-S30740243072013012500000) ". Is the inspection result normal? YES: GO TO 4. NO: Adjust ICC brake switch installation. Refer to " «INSPECTION AND ADJUSTMENT»(ref-524027-S30740243072013012500000) ".
ICC BRAKE SWITCH INSPECTION Disconnect ICC brake switch connector. Check ICC brake switch. Refer to " «COMPONENT INSPECTION (ICC BRAKE SWITCH)»(ref-524071-S30178176652013012500000) ". Is the inspection result normal? YES: GO TO 7 . NO: Replace the ICC brake switch.
CHECK STOP LAMP FOR ILLUMINATION Check stop lamp illumination. Is the inspection result normal? YES: GO TO 6. NO: Check the stop lamp circuit, and repair or replace the malfunctioning parts.
CHECK ICC BRAKE HOLD RELAY Turn the ignition switch OFF. Remove ICC brake hold relay. Check for continuity between ICC brake hold relay terminals. ICC brake hold relay Continuity Terminal 3 4 Existed 7 6 Not existed Is the inspection result normal? YES: GO TO 7. NO: Replace ICC brake hold relay.
CHECK HARNESS BETWEEN ECM AND ICC BRAKE HOLD RELAY Disconnect ECM connector. Check for continuity between the ECM harness connector and ICC brake hold relay harness connector. ECM AND ICC BRAKE HOLD RELAY CONTINUITY REFERENCE CHART (VQ35HR) ECM ICC brake hold relay Continuity Connector Terminal Connector Terminal M107 122 E91 6 Existed ECM AND ICC BRAKE HOLD RELAY CONTINUITY REFERENCE CHART (VK50VE) ECM ICC brake hold relay Continuity Connector Terminal Connector Terminal M160 110 E91 6 Existed Check for continuity between ECM harness connector and ground. ECM HARNESS CONNECTOR CONTINUITY REFERENCE CHART (VQ35HR) ECM Ground Continuity Connector Terminal M107 122 Not existed ECM HARNESS CONNECTOR CONTINUITY REFERENCE CHART (VK50VE0 ECM Ground Continuity Connector Terminal M160 110 Not existed Is the inspection result normal? YES: GO TO 8. NO: Repair the harnesses or connectors.
CHECK HARNESS BETWEEN ECM AND ICC BRAKE SWITCH Check for continuity between the ECM harness connector and ICC brake switch harness connector. ECM AND ICC BRAKE SWITCH CONTINUITY REFERENCE CHART (VQ35HR) ECM ICC brake switch Continuity Connector Terminal Connector Terminal M107 126 E114 2 Existed ECM AND ICC BRAKE SWITCH CONTINUITY REFERENCE CHART (VK50VE) ECM ICC brake switch Continuity Connector Terminal Connector Terminal M160 117 E114 2 Existed Check for continuity between ECM harness connector and ground. ECM HARNESS CONNECTOR CONTINUITY REFERENCE CHART (VQ35HR) ECM Ground Continuity Connector Terminal M107 126 Not existed ECM HARNESS CONNECTOR CONTINUITY REFERENCE CHART (VK50VE) ECM Ground Continuity Connector Terminal M160 117 Not existed Is the inspection result normal? YES: GO TO 9. NO: Repair the harnesses or connectors.
CHECK HARNESS BETWEEN ICC BRAKE SWITCH AND ICC BRAKE HOLD RELAY Disconnect ICC brake switch connector. Check for continuity between ICC brake switch harness connector and ICC brake hold relay harness connector. ICC brake switch ICC brake hold relay Continuity Connector Terminal Connector Terminal E114 1 E91 4 Existed Check for continuity between ICC brake switch harness connector and ground. ICC brake switch Ground Continuity Connector Terminal E114 1 Not existed Is the inspection result normal? YES: GO TO 10. NO: Repair the harnesses or connectors.
PERFORM SELF-DIAGNOSIS OF ECM Connect all connectors again if the connectors are disconnected. Turn the ignition switch ON. Perform "All DTC Reading". Check if any DTC is detected in "Self Diagnostic Result" of "ENGINE". Is any DTC detected? YES: Perform diagnosis on the detected DTC and repair or replace the malfunctioning parts. Refer to " «DTC INDEX»(ref-524001-S15324713652013012500000) " (VQ35HR) or " «DTC INDEX»(ref-524019-S36613113262013012500000) " (VK50VE). NO: Replace the brake booster control unit.

DTC (On board display)	Trouble diagnosis name	DTC detecting condition	Possible causes
C1A24 (24)	NP RANGE	If the shift position signal and the current gear position signal, transmitted from TCM via CAN communication, are inconsistent	TCM Transmission range switch

Note. If DTC "C1A24" is detected along with DTC "U1000", first diagnose the DTC "U1000". Refer to " ICC SENSOR INTEGRATED UNIT: DTC LOGIC ".

PERFORM DTC CONFIRMATION PROCEDURE (1) Start the engine. Turn the DCA system ON. Wait for approximately 5 minutes or more after shifting the selector lever to "P" position. Perform "All DTC Reading" with CONSULT. Check if the "C1A24" is detected as the current malfunction in self-diagnosis results of "ICC/ADAS". Is "C1A24" detected as the current malfunction? YES: Refer to " «DIAGNOSIS PROCEDURE»(ref-524071-S02191069222013012500000) ". NO: GO TO 2.
PERFORM DTC CONFIRMATION PROCEDURE (2) Wait for approximately 5 minutes or more after shifting the selector lever to "N" position. Perform "All DTC Reading". Check if the "C1A24" is detected as the current malfunction in self-diagnosis results of "ICC/ADAS". Is "C1A24" detected as the current malfunction? YES: Refer to " «DIAGNOSIS PROCEDURE»(ref-524071-S02191069222013012500000) ". NO: Refer to " «INTERMITTENT INCIDENT»(ref-523989-S35030212592013012500000) ".

CHECK SELF-DIAGNOSIS RESULTS Check if "U1000" is detected other than "C1A24" in "Self Diagnostic Result" of "ICC/ADAS". Is "U1000" detected? YES: Perform the CAN communication system inspection. Repair or replace the malfunctioning parts. Refer to " «ICC SENSOR INTEGRATED UNIT: DTC LOGIC»(ref-524071-S20280562102013012500000) ". NO: GO TO 2.
CHECK TCM DATA MONITOR Check that "SLCT LVR POSI" operates normally in "DATA MONITOR" of "TRANSMISSION". Is the inspection result normal? YES: GO TO 3. NO: Perform diagnosis for transmission range switch circuit and repair or replace the malfunctioning parts. Refer to " «DTC LOGIC»(ref-524009-S06997075692013012500000) " (VQ35HR) or " «DTC LOGIC»(ref-524021-S22540774972013012500000) " (VK50VE)
PERFORM TCM SELF-DIAGNOSIS Perform "All DTC Reading". Check if any DTC is detected in "Self Diagnostic Result" of "TRANSMISSION". Is any DTC detected? YES: Perform diagnosis on the detected DTC and repair or replace the malfunctioning parts. Refer to " «DTC INDEX»(ref-524009-S40785710712013012500000) " (VQ35HR) or " «DTC INDEX»(ref-524021-S07268560392013012500000) " (VK50VE). NO: Replace the ICC sensor integrated unit. Refer to " «EXPLODED VIEW»(ref-524071-S36884752842013012500000) ".

DTC (On board display)	Trouble diagnosis name	DTC detecting condition	Possible causes
C1A28 (28)	BCU PWR SUPLY CIR	The brake booster control unit power supply voltage is excessively low (less than 8 V).	Brake booster control unit Harness, connector, fuse
C1A29 (29)	BCU PWR SUPLY CIR2	The brake booster control unit power supply voltage is excessively high (more than 19 V).	Brake booster control unit Harness, connector, fuse

Note. If DTC "C1A28" or "C1A29" is detected along with DTC "U1000", first diagnose the DTC "U1000". Refer to " ICC SENSOR INTEGRATED UNIT: DTC LOGIC ".

PERFORM DTC CONFIRMATION PROCEDURE Start the engine. Turn the DCA system ON. Perform "All DTC Reading" with CONSULT. Check if the "C1A28" or "C1A29" is detected as the current malfunction in self-diagnosis results of "ICC/ADAS". Is "C1A28" or "C1A29" detected as the current malfunction? YES: Refer to " «DIAGNOSIS PROCEDURE»(ref-524071-S10525465452013012500000) ". NO: Refer to " «INTERMITTENT INCIDENT»(ref-523989-S35030212592013012500000) ".

CHECK SELF-DIAGNOSIS RESULTS Check if "U1000" is detected other than "C1A28", "C1A29" in "Self Diagnostic Result" of "ICC/ADAS". Is "U1000" detected? YES: Perform the CAN communication system inspection. Repair or replace the malfunctioning parts. Refer to " «ICC SENSOR INTEGRATED UNIT: DTC LOGIC»(ref-524071-S20280562102013012500000) ". NO: GO TO 2.
CHECK BRAKE BOOSTER CONTROL UNIT POWER SUPPLY AND GROUND CIRCUIT Check brake booster control unit power supply and ground circuit. Refer to " «BRAKE BOOSTER CONTROL UNIT: DIAGNOSIS PROCEDURE»(ref-524071-S39287988512013012500000) ". Is the inspection result normal? YES: Replace the brake booster control unit. NO: Repair brake booster control unit power supply and ground circuit.

DTC (On board display)	Trouble diagnosis name	DTC detecting condition	Possible causes
C1A30 (30)	BCU CAN COMM CIRC	If ICC sensor integrated unit receives the signal for improper condition for brake booster control unit via ITS communication	ITS communication system

PERFORM THE SELF-DIAGNOSIS Start the engine. Turn the DCA system ON. Perform "All DTC Reading" with CONSULT. Check if the "C1A30" is detected as the current malfunction in self-diagnosis results of "ICC/ADAS". Is "C1A30" detected as the current malfunction? YES: Perform trouble diagnosis for the ITS communication system. Refer to " «TROUBLE DIAGNOSIS FLOW CHART»(ref-523993-S38740783062013012500000) ". NO: Refer to " «INTERMITTENT INCIDENT»(ref-523989-S35030212592013012500000) ".

DTC (On board display)	Trouble diagnosis name	DTC detecting condition	Possible causes
C1A31 (31)	BCU INTERNAL MALF	Brake booster control unit internal malfunction	Brake booster control unit

PERFORM DTC CONFIRMATION PROCEDURE Start the engine. Turn the DCA system ON. Perform "All DTC Reading" with CONSULT. Check if the "C1A31" is detected as the current malfunction in self-diagnosis results of "ICC/ADAS". Is "C1A31" detected as the current malfunction? YES: Refer to " «DIAGNOSIS PROCEDURE»(ref-524071-S31183124042013012500000) ". NO: Refer to " «INTERMITTENT INCIDENT»(ref-523989-S35030212592013012500000) ".

CHECK SELF-DIAGNOSIS RESULTS Check if any DTC other than "C1A31" is detected in "Self Diagnostic Result" of "ICC/ADAS". Is any DTC detected? YES: Perform diagnosis on the detected DTC and repair or replace the malfunctioning parts. Refer to " «DTC INDEX»(ref-524071-S16725429442013012500000) " (ICC/ADAS). NO: Replace the brake booster control unit.

DTC (On board display)	Trouble diagnosis name	DTC detecting condition	Possible causes
C1A32 (32)	IBA FLAG STUCK	If the control (detection) of IBA is malfunctioning	ICC sensor integrated unit Brake booster control unit

Note. If DTC "C1A32" is detected along with DTC "U1000", first diagnose the DTC "U1000". Refer to " ICC SENSOR INTEGRATED UNIT: DTC LOGIC ".

PERFORM DTC CONFIRMATION PROCEDURE Start the engine. Turn the DCA system ON, and wait for 5 minutes or more. Perform "All DTC Reading" with CONSULT. Check if the "C1A32" is detected as the current malfunction in self-diagnosis results of "ICC/ADAS". Is "C1A32" detected as the current malfunction? YES: Refer to " «DIAGNOSIS PROCEDURE»(ref-524071-S36205142912013012500000) ". NO: Refer to " «INTERMITTENT INCIDENT»(ref-523989-S35030212592013012500000) ".

CHECK SELF-DIAGNOSIS RESULTS Check if "U1000" is detected other than "C1A32" in "Self Diagnostic Result" of "ICC/ADAS". Is "U1000" detected? YES: Perform the CAN communication system inspection. Repair or replace the malfunctioning parts. Refer to " «ICC SENSOR INTEGRATED UNIT: DTC LOGIC»(ref-524071-S20280562102013012500000) ". NO: GO TO 2.
REPLACE BRAKE BOOSTER CONTROL UNIT Turn the ignition switch OFF. Replace the brake booster control unit. Erases All self-diagnosis results. Perform DTC confirmation procedure. Refer to " «DTC LOGIC»(ref-524071-S09655037422013012500000) ". Perform "All DTC Reading". Check if the "C1A32" is detected in "Self Diagnostic Result" of "ICC/ADAS". Is "C1A32" detected? YES: Replace the ICC sensor integrated unit. Refer to " «EXPLODED VIEW»(ref-524071-S36884752842013012500000) ". NO: INSPECTION END

DTC (On board display)	Trouble diagnosis name	DTC detecting condition	Possible causes
C1A33 (33)	CAN TRANSMISSION ERROR	If an error occurs in the CAN communication signal that ICC sensor integrated unit transmits to ECM	ICC sensor integrated unit

Note. If DTC "C1A33" is detected along with DTC "U1000", first diagnose the DTC "U1000". Refer to " ICC SENSOR INTEGRATED UNIT: DTC LOGIC ".

PERFORM DTC CONFIRMATION PROCEDURE Start the engine. Turn the DCA system ON. Perform "All DTC Reading" with CONSULT. Check if the "C1A33" is detected as the current malfunction in self-diagnosis results of "ICC/ADAS". Is "C1A33" detected as the current malfunction? YES: Refer to " «DIAGNOSIS PROCEDURE»(ref-524071-S22510810922013012500000) ". NO: Refer to " «INTERMITTENT INCIDENT»(ref-523989-S35030212592013012500000) ".

CHECK SELF-DIAGNOSIS RESULTS Check if "U1000" is detected other than "C1A33" in "Self Diagnostic Result" of "ICC/ADAS". Is "U1000" detected? YES: Perform the CAN communication system inspection. Repair or replace the malfunctioning parts. Refer to " «ICC SENSOR INTEGRATED UNIT: DTC LOGIC»(ref-524071-S20280562102013012500000) ". NO: Replace the ICC sensor integrated unit. Refer to " «EXPLODED VIEW»(ref-524071-S36884752842013012500000) ".

DTC (On board display)	Trouble diagnosis name	DTC detecting condition	Possible causes
C1A34 (34)	COMMAND ERROR	If an error occurs in the command signal that ICC sensor integrated unit transmits to ECM via CAN communication	ICC sensor integrated unit

Note. If DTC "C1A34" is detected along with DTC "U1000", first diagnose the DTC "U1000". Refer to " ICC SENSOR INTEGRATED UNIT: DTC LOGIC ".

PERFORM DTC CONFIRMATION PROCEDURE Start the engine. Operate the ICC system and drive. CAUTION: Always drive safely. Stop the vehicle. Perform "All DTC Reading" with CONSULT. Check if the "C1A34" is detected as the current malfunction in self-diagnosis results of "ICC/ADAS". Is "C1A34" detected as the current malfunction? YES: Refer to " «DIAGNOSIS PROCEDURE»(ref-524071-S09540648062013012500000) ". NO: Refer to " «INTERMITTENT INCIDENT»(ref-523989-S35030212592013012500000) ".

CHECK SELF-DIAGNOSIS RESULTS Check if "U1000" is detected other than "C1A34" in "Self Diagnostic Result" of "ICC/ADAS". Is "U1000" detected? YES: Perform the CAN communication system inspection. Repair or replace the malfunctioning parts. Refer to " «ICC SENSOR INTEGRATED UNIT: DTC LOGIC»(ref-524071-S20280562102013012500000) ". NO: Replace the ICC sensor integrated unit. Refer to " «EXPLODED VIEW»(ref-524071-S36884752842013012500000) ".

DTC (On board display)	Trouble diagnosis name	DTC detecting condition	Possible causes
C1A35 (35)	APA CIR	If the accelerator pedal actuator is malfunctioning	Accelerator pedal actuator

PERFORM THE SELF-DIAGNOSIS Start the engine. Turn the DCA system ON. Perform "All DTC Reading" with CONSULT. Check if the "C1A35" is detected as the current malfunction in self-diagnosis results of "ICC/ADAS". Is "C1A35" detected as the current malfunction? YES: Replace the accelerator pedal assembly. NO: INSPECTION END

DTC (On board display)	Trouble diagnosis name	DTC detecting condition	Possible causes
C1A36 (36)	APA CAN COMM CIR	If an error occurs in the signal that the accelerator pedal actuator transmits via ITS communication	ICC sensor integrated unit Accelerator pedal actuator ITS communication system

Note. If DTC "C1A36" is detected along with DTC "U1000", first diagnose the DTC "U1000". Refer to " ICC SENSOR INTEGRATED UNIT: DTC LOGIC ".

PERFORM DTC CONFIRMATION PROCEDURE Start the engine. Turn the DCA system ON. Perform "All DTC Reading" with CONSULT. Check if the "C1A36" is detected as the current malfunction in self-diagnosis results of "ICC/ADAS". Is "C1A36" detected as the current malfunction? YES: Refer to " «DIAGNOSIS PROCEDURE»(ref-524071-S23832362612013012500000) ". NO: Refer to " «INTERMITTENT INCIDENT»(ref-523989-S35030212592013012500000) ".

CHECK ICC SENSOR INTEGRATED UNIT SELF-DIAGNOSIS RESULTS Check if "U1000" is detected other than "C1A36" in "Self Diagnostic Result" of "ICC/ADAS". Is "U1000" detected? YES: Perform the CAN communication system inspection. Repair or replace the malfunctioning parts. Refer to " «ICC SENSOR INTEGRATED UNIT: DTC LOGIC»(ref-524071-S20280562102013012500000) ". NO: GO TO 2.
CHECK ACCELERATOR PEDAL ACTUATOR SELF-DIAGNOSIS RESULTS Check if the DTC is detected in "Self Diagnostic Result" of "ACCELE PEDAL ACT". Is any DTC detected? YES: Perform diagnosis on the detected DTC and repair or replace the malfunctioning parts. Refer to " «DTC INDEX»(ref-524071-S11509892152013012500000) " (ACCELE PEDAL ACT). NO: Replace the ICC sensor integrated unit. Refer to " «EXPLODED VIEW»(ref-524071-S36884752842013012500000) ".

DTC (On board display)	Trouble diagnosis name	DTC detecting condition	Possible causes
C1A37 (133)	APA CAN CIR2	If ICC sensor integrated unit detects an error signal that is received from accelerator pedal actuator via ITS communication	Accelerator pedal actuator malfunction

Note. If DTC "C1A37" is detected along with DTC "U1000", first diagnose the DTC "U1000". Refer to " ICC SENSOR INTEGRATED UNIT: DTC LOGIC ".

PERFORM DTC CONFIRMATION PROCEDURE Start the engine. Turn the DCA system ON. Perform "All DTC Reading" with CONSULT. Check if the "C1A37" is detected as the current malfunction in self-diagnosis results of "ICC/ADAS". Is "C1A37" detected as the current malfunction? YES: Refer to " «DIAGNOSIS PROCEDURE»(ref-524071-S07953852232013012500000) ". NO: Refer to " «INTERMITTENT INCIDENT»(ref-523989-S35030212592013012500000) ".

CHECK ICC SENSOR INTEGRATED UNIT SELF-DIAGNOSIS RESULTS Check if "U1000" is detected other than "C1A37" in "Self Diagnostic Result" of "ICC/ADAS". Is "U1000" detected? YES: Perform the CAN communication system inspection. Repair or replace the malfunctioning parts. Refer to " «ICC SENSOR INTEGRATED UNIT: DTC LOGIC»(ref-524071-S20280562102013012500000) ". NO: GO TO 2.
REPLACE ACCELERATOR PEDAL ASSEMBLY Turn the ignition switch OFF. Replace the accelerator pedal assembly. Turn the ignition switch ON. Erases All self-diagnosis results. Perform "All DTC Reading" again. Check if the DTC "C1A37" is detected in self-diagnosis results of "ICC/ADAS". Is "C1A37" detected? YES: Replace the ICC sensor integrated unit. Refer to " «EXPLODED VIEW»(ref-524071-S36884752842013012500000) ". NO: INSPECTION END

DTC (On board display)	Trouble diagnosis name	DTC detecting condition	Possible causes
C1A38 (132)	APA CAN CIR1	If ICC sensor integrated unit detects an error signal that is received from accelerator pedal actuator via ITS communication	Accelerator pedal actuator malfunction

Note. If DTC "C1A38" is detected along with DTC "U1000", first diagnose the DTC "U1000". Refer to " ICC SENSOR INTEGRATED UNIT: DTC LOGIC ".

PERFORM DTC CONFIRMATION PROCEDURE Start the engine. Turn the DCA system ON. Perform "All DTC Reading" with CONSULT. Check if the "C1A38" is detected as the current malfunction in self-diagnosis results of "ICC/ADAS". Is "C1A38" detected as the current malfunction? YES: Refer to " «DIAGNOSIS PROCEDURE»(ref-524071-S36450921162013012500000) ". NO: Refer to " «INTERMITTENT INCIDENT»(ref-523989-S35030212592013012500000) ".

CHECK ICC SENSOR INTEGRATED UNIT SELF-DIAGNOSIS RESULTS Check if "U1000" is detected other than "C1A38" in "Self Diagnostic Result" of "ICC/ADAS". Is "U1000" detected? YES: Perform the CAN communication system inspection. Repair or replace the malfunctioning parts. Refer to " «ICC SENSOR INTEGRATED UNIT: DTC LOGIC»(ref-524071-S20280562102013012500000) ". NO: GO TO 2.
REPLACE ACCELERATOR PEDAL ASSEMBLY Turn the ignition switch OFF. Replace the accelerator pedal assembly. Erases All self-diagnosis results. Perform "All DTC Reading" again. Check if the "C1A38" is detected in self-diagnosis results of "ICC/ADAS". Is "C1A38" detected? YES: Replace the ICC sensor integrated unit. Refer to " «EXPLODED VIEW»(ref-524071-S36884752842013012500000) ". NO: INSPECTION END

DTC (On board display)	Trouble diagnosis name	DTC detecting condition	Possible causes
C1A39 (39)	STRG SEN CIR	If the steering angle sensor is malfunction	Steering angle sensor is malfunction

Note. If DTC "C1A39" is detected along with DTC "U1000", first diagnose the DTC "U1000". Refer to " ICC SENSOR INTEGRATED UNIT: DTC LOGIC ".

PERFORM DTC CONFIRMATION PROCEDURE Start the engine. Turn the DCA system ON. Perform "All DTC Reading" with CONSULT. Check if the "C1A39" is detected as the current malfunction in self-diagnosis results of "ICC/ADAS". Is "C1A39" detected as the current malfunction? YES: Refer to " «DIAGNOSIS PROCEDURE»(ref-524071-S23412290272013012500000) ". NO: Refer to " «INTERMITTENT INCIDENT»(ref-523989-S35030212592013012500000) ".

CHECK SELF-DIAGNOSIS RESULTS Check if "U1000" is detected other than "C1A39" in "Self Diagnostic Result" of "ICC/ADAS". Is "U1000" detected? YES: Perform the CAN communication system inspection. Repair or replace the malfunctioning parts. Refer to " «ICC SENSOR INTEGRATED UNIT: DTC LOGIC»(ref-524071-S20280562102013012500000) ". NO: GO TO 2.
CHECK ABS ACTUATOR AND ELECTRIC UNIT (CONTROL UNIT) SELF-DIAGNOSIS RESULTS Check if any DTC is detected in "Self Diagnostic Result" of "ABS". Is any DTC detected? YES: Perform diagnosis on the detected DTC and repair or replace the malfunctioning parts. Refer to " «DTC INDEX»(ref-524026-S23650152162013012500000) ". NO: Replace the ICC sensor integrated unit. Refer to " «EXPLODED VIEW»(ref-524071-S36884752842013012500000) ".

DTC (On board display)	Trouble diagnosis name	DTC detecting condition	Possible causes
C1A40 (40)	SYSTEM SW CIRC	If the IBA OFF switch is stuck to ON	IBA OFF switch circuit IBA OFF switch Brake booster control unit

Note. If DTC "C1A40" is displayed along with DTC "U1000", first diagnose the DTC "U1000". Refer to " ICC SENSOR INTEGRATED UNIT: DTC LOGIC ".

PERFORM DTC CONFIRMATION PROCEDURE Start the engine and wait for approximately 10 minutes or more. Perform "All DTC Reading" with CONSULT. Check if the "C1A40" is detected as the current malfunction in "Self Diagnostic Result" of "ICC/ADAS". Is "C1A40" detected as the current malfunction? YES: Refer to " «DIAGNOSIS PROCEDURE»(ref-524071-S37015655252013012500000) ". NO: Refer to " «INTERMITTENT INCIDENT»(ref-523989-S35030212592013012500000) ".

CHECK SELF-DIAGNOSIS RESULTS Check if "U1000" is detected other than "C1A40" in "Self Diagnostic Result" of "ICC/ADAS". Is "U1000" detected? YES: Perform the CAN communication system inspection. Repair or replace the malfunctioning parts. Refer to " «ICC SENSOR INTEGRATED UNIT: DTC LOGIC»(ref-524071-S20280562102013012500000) ". NO: GO TO 2.
CHECK DATA MONITOR Check that "IBA SW" operate normally in "DATA MONITOR" of "ICC/ADAS". Is the inspection result normal? YES: Refer to " «INTERMITTENT INCIDENT»(ref-523989-S35030212592013012500000) ". NO: GO TO 3.
CHECK IBA OFF SWITCH Turn the ignition switch OFF. Disconnect the IBA OFF switch connector. Check the IBA OFF switch. Refer to " «COMPONENT INSPECTION (IBA OFF SWITCH)»(ref-524071-S09766031402013012500000) ". Is the inspection result normal? YES: GO TO 4. NO: Replace the IBA OFF switch.
CHECK HARNESS BETWEEN BRAKE BOOSTER CONTROL UNIT AND IBA OFF SWITCH Disconnect brake booster control unit connector. Check for continuity between the brake booster control unit harness connector and IBA OFF switch harness connector. Brake booster control unit IBA OFF switch Continuity Connector Terminal Connector Terminal B249 40 M184 7 Existed Check for continuity between brake booster control unit and ground. Brake booster control unit Ground Continuity Connector Terminal B249 40 Not existed Is the inspection result normal? YES: GO TO 5. NO: Repair the harnesses or connectors.
CHECK IBA OFF SWITCH GROUND CIRCUIT Check for continuity between IBA OFF switch harness connector and ground. IBA OFF switch Ground Continuity Connector Terminal M184 6 Existed Is the inspection result normal? YES: GO TO 6. NO: Repair the harnesses or connectors.
CHECK IBA OFF SWITCH SIGNAL Connect the brake booster control unit connector. Turn the ignition switch ON. Check voltage between brake booster control unit harness connector and ground. Terminals Voltage (Approx.) (+) (-) Brake booster control unit Ground Connector Terminal B249 40 Battery voltage Is the inspection result normal? YES: Replace ICC sensor integrated unit. Refer to " «EXPLODED VIEW»(ref-524071-S36884752842013012500000) ". NO: Replace the brake booster control unit.

Component Inspection (IBA OFF Switch)

CHECK IBA OFF SWITCH Check for continuity of IBA OFF switch. Terminal Condition Continuity 6 7 When the IBA OFF switch is pressed Existed When the IBA OFF switch is released Not existed Is the inspection result normal? YES: INSPECTION END NO: Replace the IBA OFF switch.

DTC (On board display)	Trouble diagnosis name	DTC detecting condition	Possible causes
C1F01 (91)	APA MOTOR MALF	If the accelerator pedal actuator motor error is detected	Accelerator pedal actuator integrated motor malfunction

PERFORM DTC CONFIRMATION PROCEDURE Turn the ignition switch OFF. Turn the ignition switch ON. Slowly depress the accelerator pedal completely, and then release it. Repeat step 3 several times. Perform "All DTC Reading" with CONSULT. Check if the DTC "C1F01" is detected as the current malfunction on the self-diagnosis results of "ICC/ADAS" or "ACCELE PEDAL ACT". Is "C1F01" detected as the current malfunction? YES: Refer to " «DIAGNOSIS PROCEDURE»(ref-524071-S15344016602013012500000) ". NO: Refer to " «INTERMITTENT INCIDENT»(ref-523989-S35030212592013012500000) ".

REPLACE ACCELERATOR PEDAL ASSEMBLY Perform DTC confirmation procedure. If "C1F01" is detected as the current malfunction, replace the accelerator pedal assembly. Refer to " «DTC LOGIC»(ref-524071-S00990583222013012500000) ". : INSPECTION END

DTC (On board display)	Trouble diagnosis name	DTC detecting condition	Possible causes
C1F02 (92)	APA C/U MALF	If the accelerator pedal actuator integrated control unit error is detected	Accelerator pedal actuator integrated control unit malfunction

PERFORM THE SELF-DIAGNOSIS Start the engine. Turn the DCA system ON. Perform "All DTC Reading" with CONSULT. Check if the DTC "C1F02" is detected as the current malfunction on the self-diagnosis results of "ICC/ADAS" or "ACCELE PEDAL ACT". Is "C1F02" detected as the current malfunction? YES: Replace the accelerator pedal assembly. NO: INSPECTION END

DTC	Trouble diagnosis name	DTC detecting condition	Possible causes
C1F03	APA HI TEMP	If the accelerator pedal actuator integrated motor temperature is excessively high	Accelerator pedal actuator integrated motor malfunction

Note. When the accelerator pedal actuator operates excessively, "C1F03" may be detected temporarily.

PERFORM DTC CONFIRMATION PROCEDURE Turn the ignition switch OFF. Wait for 10 minutes or more and cool the accelerator pedal actuator integrated motor. Drive the vehicle with dynamic driver assistance switch ON and operate the system. CAUTION: Always drive safely. Stop the vehicle. Perform "All DTC Reading" with CONSULT. Check if the DTC "C1F03" is detected as the current malfunction in self-diagnosis results of "ACCELE PEDAL ACT". Is "C1F03" detected as the current malfunction? YES: Refer to " «DIAGNOSIS PROCEDURE»(ref-524071-S41212566682013012500000) ". NO: Refer to " «INTERMITTENT INCIDENT»(ref-523989-S35030212592013012500000) ".

REPLACE ACCELERATOR PEDAL ASSEMBLY Perform DTC confirmation procedure. If "C1F03" is detected, replace the accelerator pedal assembly. Refer to " «DTC LOGIC»(ref-524071-S18163150342013012500000) ". : INSPECTION END

DTC (On board display)	Trouble diagnosis name	DTC detecting condition	Possible causes
C1F05 (95)	APA PWR SUPLY CIR	The voltage input to accelerator pedal actuator is excessively low (approximately 8 V or less) or excessively high (approximately 19 V or more).	Harness, connector, or fuse Accelerator pedal actuator

PERFORM DTC CONFIRMATION PROCEDURE Start the engine. Turn the DCA system ON. Perform "All DTC Reading" with CONSULT. Check if the "C1F05" is detected as the current malfunction on the self-diagnosis results of "ICC/ADAS" or "ACCELE PEDAL ACT". Is "C1F05" detected as the current malfunction? YES: Refer to " «DIAGNOSIS PROCEDURE»(ref-524071-S34930450632013012500000) ". NO: Refer to " «INTERMITTENT INCIDENT»(ref-523989-S35030212592013012500000) ".

CHECK POWER SUPPLY CIRCUIT Check the accelerator pedal actuator power supply circuit. Refer to " «ACCELERATOR PEDAL ACTUATOR: DIAGNOSIS PROCEDURE»(ref-524071-S32619056072013012500000) ". Is the inspection result normal? YES: Replace the accelerator pedal assembly. NO: Repair or replace the malfunctioning parts.

DTC (On board display)	Trouble diagnosis name	DTC detecting condition	Possible causes
C1F06	CAN CIR 2	If accelerator pedal actuator detects an error signal that is received from ICC sensor integrated unit via ITS communication	ICC sensor integrated unit malfunction

Note. If DTC "C1F06" is detected along with DTC "U1000", first diagnose the DTC "U1000". Refer to " ICC SENSOR INTEGRATED UNIT: DTC LOGIC ".

PERFORM DTC CONFIRMATION PROCEDURE Start the engine. Turn the DCA system ON. Perform "All DTC Reading" with CONSULT. Check if the "C1F06" is detected as the current malfunction in self-diagnosis results of "ACCELE PEDAL ACT". Is "C1F06" detected as the current malfunction? YES: Refer to " «DIAGNOSIS PROCEDURE»(ref-524071-S04129744462013012500000) ". NO: Refer to " «INTERMITTENT INCIDENT»(ref-523989-S35030212592013012500000) ".

CHECK SELF-DIAGNOSIS RESULTS Check if "U1000" is detected other than "C1F06" in "Self Diagnostic Result" of "ACCELE PEDAL ACT". Is "U1000" detected? YES: Perform the CAN communication system inspection. Repair or replace the malfunctioning parts. Refer to " «ICC SENSOR INTEGRATED UNIT: DTC LOGIC»(ref-524071-S20280562102013012500000) ". NO: GO TO 2.
REPLACE ICC SENSOR INTEGRATED UNIT Turn the ignition switch OFF. Replace the ICC sensor integrated unit. Refer to " «EXPLODED VIEW»(ref-524071-S36884752842013012500000) ". Erases All self-diagnosis results. Perform "All DTC Reading" again. Check if the "C1F06" is detected in self-diagnosis results of "ACCELE PEDAL ACT". Is "C1F06" detected? YES: Replace the accelerator pedal assembly. NO: INSPECTION END

DTC (On board display)	Trouble diagnosis name	DTC detecting condition	Possible causes
C1F07	CAN CIR 1	If accelerator pedal actuator detects an error signal that is received from ICC sensor integrated unit via ITS communication	ICC sensor integrated unit malfunction

Note. If DTC "C1F07" is detected along with DTC "U1000", first diagnose the DTC "U1000". Refer to " ICC SENSOR INTEGRATED UNIT: DTC LOGIC ".

PERFORM DTC CONFIRMATION PROCEDURE Start the engine. Turn the DCA system ON. Perform "All DTC Reading" with CONSULT. Check if the "C1F07" is detected as the current malfunction in self-diagnosis results of "ACCELE PEDAL ACT". Is "C1F07" detected as the current malfunction? YES: Refer to " «DIAGNOSIS PROCEDURE»(ref-524071-S22730250182013012500000) ". NO: Refer to " «INTERMITTENT INCIDENT»(ref-523989-S35030212592013012500000) ".

CHECK SELF-DIAGNOSIS RESULTS Check if "U1000" is detected other than "C1F07" in "Self Diagnosis Result" of "ACCELE PEDAL ACT". Is "U1000" detected? YES: Perform the CAN communication system inspection. Repair or replace the malfunctioning parts. Refer to " «ICC SENSOR INTEGRATED UNIT: DTC LOGIC»(ref-524071-S20280562102013012500000) ". NO: GO TO 2.
REPLACE ICC SENSOR INTEGRATED UNIT Turn the ignition switch OFF. Replace the ICC sensor integrated unit. Refer to " «EXPLODED VIEW»(ref-524071-S36884752842013012500000) ". Erases All self-diagnosis results. Perform "All DTC Reading" again. Check if the "C1F07" is detected in self-diagnosis results of "ACCELE PEDAL ACT". Is "C1F07" detected? YES: Replace the accelerator pedal assembly. NO: INSPECTION END

DTC (On board display)	Trouble diagnosis name	DTC detecting condition	Possible causes
U0121 (127)	VDC CAN CIR2	If ICC sensor integrated unit detects an error signal that is received from ABS actuator and electric unit (control unit) via CAN communication	ABS actuator and electric unit (control unit)

Note. If DTC "U0121" is detected along with DTC "U1000", first diagnose the DTC "U1000". Refer to " ICC SENSOR INTEGRATED UNIT: DTC LOGIC ".

PERFORM DTC CONFIRMATION PROCEDURE Start the engine. Turn the DCA system ON. Perform "All DTC Reading" with CONSULT. Check if the "U0121" is detected as the current malfunction in self-diagnosis results of "ICC/ADAS". Is "U0121" detected as the current malfunction? YES: Refer to " «DIAGNOSIS PROCEDURE»(ref-524071-S27295658412013012500000) ". NO: Refer to " «INTERMITTENT INCIDENT»(ref-523989-S35030212592013012500000) ".

CHECK SELF-DIAGNOSIS RESULTS Check if "U1000" is detected other than "U0121" in "Self Diagnostic Result" of "ICC/ADAS". Is "U1000" detected? YES: Perform the CAN communication system inspection. Repair or replace the malfunctioning parts. Refer to " «ICC SENSOR INTEGRATED UNIT: DTC LOGIC»(ref-524071-S20280562102013012500000) ". NO: GO TO 2.
CHECK ABS ACTUATOR AND ELECTRIC UNIT (CONTROL UNIT) SELF-DIAGNOSIS RESULTS Check if any DTC is detected in "Self Diagnostic Result" of "ABS". Is any DTC detected? YES: Perform diagnosis on the detected DTC and repair or replace the malfunctioning parts. Refer to " «DTC INDEX»(ref-524026-S23650152162013012500000) ". NO: Replace the ICC sensor integrated unit. Refer to " «EXPLODED VIEW»(ref-524071-S36884752842013012500000) ".

DTC (On board display)	Trouble diagnosis name	DTC detecting condition	Possible causes
U0126 (130)	STRG SEN CAN CIR1	If ICC sensor integrated unit detects an error signal that is received from steering angle sensor via CAN communication	Steering angle sensor error

Note. If DTC "U0126" is detected along with DTC "U1000", first diagnose the DTC "U1000". Refer to " ICC SENSOR INTEGRATED UNIT: DTC LOGIC ".

PERFORM DTC CONFIRMATION PROCEDURE Start the engine. Turn the DCA system ON. Perform "All DTC Reading" with CONSULT. Check if the "U0126" is detected as the current malfunction in self-diagnosis results of "ICC/ADAS". Is "U0126" detected as the current malfunction? YES: Refer to " «DIAGNOSIS PROCEDURE»(ref-524071-S29010403022013012500000) ". NO: Refer to " «INTERMITTENT INCIDENT»(ref-523989-S35030212592013012500000) ".

CHECK SELF-DIAGNOSIS RESULTS Check if "U1000" is detected other than "U0126" in "Self Diagnostic Result" of "ICC/ADAS". Is "U1000" detected? YES: Perform the CAN communication system inspection. Repair or replace the malfunctioning parts. Refer to " «ICC SENSOR INTEGRATED UNIT: DTC LOGIC»(ref-524071-S20280562102013012500000) ". NO: GO TO 2.
CHECK ABS ACTUATOR AND ELECTRIC UNIT (CONTROL UNIT) SELF-DIAGNOSIS RESULTS Check if any DTC is detected in "Self Diagnostic Result" of "ABS". Is any DTC detected? YES: Perform diagnosis on the detected DTC and repair or replace the malfunctioning parts. Refer to " «DTC INDEX»(ref-524026-S23650152162013012500000) ". NO: Replace the ICC sensor integrated unit. Refer to " «EXPLODED VIEW»(ref-524071-S36884752842013012500000) ".

DTC (On board display)	Trouble diagnosis name	DTC detecting condition	Possible causes
U0129 (125)	BCU CAN CIR 2	If ICC sensor integrated unit detects an error signal that is received from brake booster control unit via ITS communication	Brake booster control unit

Note. If DTC "U0129" is detected along with DTC "U1000", first diagnose the DTC "U1000". Refer to " ICC SENSOR INTEGRATED UNIT: DTC LOGIC ".

PERFORM DTC CONFIRMATION PROCEDURE Start the engine. Turn the DCA system ON. Perform "All DTC Reading" with CONSULT. Check if the "U0129" is detected as the current malfunction in self-diagnosis results of "ICC/ADAS". Is "U0129" detected as the current malfunction? YES: Refer to " «DIAGNOSIS PROCEDURE»(ref-524071-S14304559322013012500000) ". NO: Refer to " «INTERMITTENT INCIDENT»(ref-523989-S35030212592013012500000) ".

CHECK SELF-DIAGNOSIS RESULTS Check if "U1000" is detected other than "U0129" in "Self Diagnostic Result" of "ICC/ADAS". Is "U1000" detected? YES: Perform the CAN communication system inspection. Repair or replace the malfunctioning parts. Refer to " «ICC SENSOR INTEGRATED UNIT: DTC LOGIC»(ref-524071-S20280562102013012500000) ". NO: GO TO 2.
REPLACE BRAKE BOOSTER CONTROL UNIT Turn ignition switch OFF. Replace brake booster control unit. Erases All self-diagnosis results. Perform DTC confirmation procedure. Refer to " «DTC LOGIC»(ref-524071-S39676933822013012500000) ". Perform "All DTC Reading". Check if the "U0129" is detected in "Self Diagnostic Result" of "ICC/ADAS". Is "U0129" detected? YES: Replace the ICC sensor integrated unit. Refer to " «EXPLODED VIEW»(ref-524071-S36884752842013012500000) ". NO: INSPECTION END

DTC (On board display)	Trouble diagnosis name	DTC detecting condition	Possible causes
U0401 (120)	ECM CAN CIR1	If ICC sensor integrated unit detects an error signal that is received from ECM via CAN communication	ECM

Note. If DTC "U0401" is detected along with DTC "U1000", first diagnose the DTC "U1000". Refer to " ICC SENSOR INTEGRATED UNIT: DTC LOGIC ".

PERFORM DTC CONFIRMATION PROCEDURE Start the engine. Turn the DCA system ON. Perform "All DTC Reading" with CONSULT. Check if the "U0401" is detected as the current malfunction in self-diagnosis results of "ICC/ADAS". Is "U0401" detected as the current malfunction? YES: Refer to " «DIAGNOSIS PROCEDURE»(ref-524071-S13266890932013012500000) ". NO: Refer to " «INTERMITTENT INCIDENT»(ref-523989-S35030212592013012500000) ".

CHECK SELF-DIAGNOSIS RESULTS Check if "U1000" is detected other than "U0401" in "Self Diagnostic Result" of "ICC/ADAS". Is "U1000" detected? YES: Perform the CAN communication system inspection. Repair or replace the malfunctioning parts. Refer to " «ICC SENSOR INTEGRATED UNIT: DTC LOGIC»(ref-524071-S20280562102013012500000) ". NO: GO TO 2.
CHECK ECM SELF-DIAGNOSIS RESULTS Check if any DTC is detected in "Self Diagnostic Result" of "ENGINE". Is any DTC detected? YES: Perform diagnosis on the detected DTC and repair or replace the malfunctioning parts. Refer to " «DTC INDEX»(ref-524001-S15324713652013012500000) " (VQ35HR) or " «DTC INDEX»(ref-524019-S36613113262013012500000) " (VK50VE). NO: Replace the ICC sensor integrated unit. Refer to " «EXPLODED VIEW»(ref-524071-S36884752842013012500000) ".

DTC (On board display)	Trouble diagnosis name	DTC detecting condition	Possible causes
U0402 (122)	TCM CAN CIR1	If ICC sensor integrated unit detects an error signal that is received from TCM via CAN communication	TCM

Note. If DTC "U0402" is detected along with DTC "U1000", first diagnose the DTC "U1000". Refer to " ICC SENSOR INTEGRATED UNIT: DTC LOGIC ".

PERFORM DTC CONFIRMATION PROCEDURE Start the engine. Turn the DCA system ON. Perform "All DTC Reading" with CONSULT. Check if the "U0402" is detected as the current malfunction in self-diagnosis results of "ICC/ADAS". Is "U0402" detected as the current malfunction? YES: Refer to " «DIAGNOSIS PROCEDURE»(ref-524071-S01071953722013012500000) ". NO: Refer to " «INTERMITTENT INCIDENT»(ref-523989-S35030212592013012500000) ".

CHECK SELF-DIAGNOSIS RESULTS Check if "U1000" is detected other than "U0402" in "Self Diagnostic Result" of "ICC/ADAS". Is "U1000" detected? YES: Perform the CAN communication system inspection. Repair or replace the malfunctioning parts. Refer to " «ICC SENSOR INTEGRATED UNIT: DTC LOGIC»(ref-524071-S20280562102013012500000) ". NO: GO TO 2.
CHECK TCM SELF-DIAGNOSIS RESULTS Check if any DTC is detected in "Self Diagnostic Result" of "TRANSMISSION". Is any DTC detected? YES: Perform diagnosis on the detected DTC and repair or replace the malfunctioning parts. Refer to " «DTC INDEX»(ref-524009-S40785710712013012500000) " (VQ35HR) or " «DTC INDEX»(ref-524021-S07268560392013012500000) " (VK50VE). NO: Replace the ICC sensor integrated unit. Refer to " «EXPLODED VIEW»(ref-524071-S36884752842013012500000) ".

DTC (On board display)	Trouble diagnosis name	DTC detecting condition	Possible causes
U0415 (126)	VDC CAN CIR1	If ICC sensor integrated unit detects an error signal that is received from ABS actuator and electric unit (control unit) via CAN communication	ABS actuator and electric unit (control unit)

Note. If DTC "U0415" is detected along with DTC "U1000", first diagnose the DTC "U1000". Refer to " ICC SENSOR INTEGRATED UNIT: DTC LOGIC ".

PERFORM DTC CONFIRMATION PROCEDURE Start the engine. Turn the DCA system ON. Perform "All DTC Reading" with CONSULT. Check if the "U0415" is detected as the current malfunction in self-diagnosis results of "ICC/ADAS". Is "U0415" detected as the current malfunction? YES: Refer to " «DIAGNOSIS PROCEDURE»(ref-524071-S21983243632013012500000) ". NO: Refer to " «INTERMITTENT INCIDENT»(ref-523989-S35030212592013012500000) ".

CHECK SELF-DIAGNOSIS RESULTS Check if "U1000" is detected other than "U0415" in "Self Diagnostic Result" of "ICC/ADAS". Is "U1000" detected? YES: Perform the CAN communication system inspection. Repair or replace the malfunctioning parts. Refer to " «ICC SENSOR INTEGRATED UNIT: DTC LOGIC»(ref-524071-S20280562102013012500000) ". NO: GO TO 2.
CHECK ABS ACTUATOR AND ELECTRIC UNIT (CONTROL UNIT) SELF-DIAGNOSIS RESULTS Check if any DTC is detected in "Self Diagnostic Result" of "ABS". Is any DTC detected? YES: Perform diagnosis on the detected DTC and repair or replace the malfunctioning parts. Refer to " «DTC INDEX»(ref-524026-S23650152162013012500000) ". NO: Replace the ICC sensor integrated unit. Refer to " «EXPLODED VIEW»(ref-524071-S36884752842013012500000) ".

DTC (On board display)	Trouble diagnosis name	DTC detecting condition	Possible causes
U0418 (124)	BCU CAN CIR1	If ICC sensor integrated unit detects an error signal that is received from brake booster control unit via CAN communication	Brake booster control unit

Note. If DTC "U0418" is detected along with DTC "U1000", first diagnose the DTC "U1000". Refer to " ICC SENSOR INTEGRATED UNIT: DTC LOGIC ".

PERFORM DTC CONFIRMATION PROCEDURE Start the engine. Turn the DCA system ON. Perform "All DTC Reading" with CONSULT. Check if the "U0418" is detected as the current malfunction in self-diagnosis results of "ICC/ADAS". Is "U0418" detected as the current malfunction? YES: Refer to " «DIAGNOSIS PROCEDURE»(ref-524071-S19346069242013012500000) ". NO: Refer to " «INTERMITTENT INCIDENT»(ref-523989-S35030212592013012500000) ".

CHECK SELF-DIAGNOSIS RESULTS Check if "U1000" is detected other than "U0418" in "Self Diagnostic Result" of "ICC/ADAS". Is "U1000" detected? YES: Perform the CAN communication system inspection. Repair or replace the malfunctioning parts. Refer to " «ICC SENSOR INTEGRATED UNIT: DTC LOGIC»(ref-524071-S20280562102013012500000) ". NO: GO TO 2.
REPLACE BRAKE BOOSTER CONTROL UNIT Turn the ignition switch OFF. Replace the brake booster control unit. Erases All self-diagnosis results. Perform DTC confirmation procedure. Refer to " «DTC LOGIC»(ref-524071-S03035095572013012500000) ". Perform "All DTC Reading". Check if the "U0418" is detected in "Self Diagnostic Result" of "ICC/ADAS". Is "U0418" detected? YES: Replace the ICC sensor integrated unit. Refer to " «EXPLODED VIEW»(ref-524071-S36884752842013012500000) ". NO: INSPECTION END

DTC (On board display)	Trouble diagnosis name	DTC detecting condition	Possible causes
U0428 (131)	STRG SEN CAN CIR2	If ICC sensor integrated unit detects an error signal that is received from steering angle sensor via CAN communication	Steering angle sensor

Note. If DTC "U0428" is detected along with DTC "U1000", first diagnose the DTC "U1000". Refer to " ICC SENSOR INTEGRATED UNIT: DTC LOGIC ".

PERFORM DTC CONFIRMATION PROCEDURE Start the engine. Turn the DCA system ON. Perform "All DTC Reading" with CONSULT. Check if the "U0428" is detected as the current malfunction in self-diagnosis results of "ICC/ADAS". Is "U0428" detected as the current malfunction? YES: Refer to " «DIAGNOSIS PROCEDURE»(ref-524071-S41672109312013012500000) ". NO: Refer to " «INTERMITTENT INCIDENT»(ref-523989-S35030212592013012500000) ".

CHECK SELF-DIAGNOSIS RESULTS Check if "U1000" is detected other than "U0428" in "Self Diagnostic Result" of "ICC/ADAS". Is "U1000" detected? YES: Perform the CAN communication system inspection. Repair or replace the malfunctioning parts. Refer to " «ICC SENSOR INTEGRATED UNIT: DTC LOGIC»(ref-524071-S20280562102013012500000) ". NO: GO TO 2.
CHECK ABS ACTUATOR AND ELECTRIC UNIT (CONTROL UNIT) SELF-DIAGNOSIS RESULTS Check if any DTC is detected in "Self Diagnostic Result" of "ABS". Is any DTC detected? YES: Perform diagnosis on the detected DTC and repair or replace the malfunctioning parts. Refer to " «DTC INDEX»(ref-524026-S23650152162013012500000) ". NO: Replace the ICC sensor integrated unit. Refer to " «EXPLODED VIEW»(ref-524071-S36884752842013012500000) ".

DTC (On board display)	Trouble diagnosis name	DTC detecting condition	Possible causes
U1000 (100)	CAN COMM CIRCUIT	If ICC sensor integrated unit is not transmitting or receiving CAN communication signal or ITS communication signal for 2 seconds or more	CAN communication system ITS communication system

Note. If "U1000" is detected, first diagnose the CAN communication system.

ICC SENSOR INTEGRATED UNIT: Diagnosis Procedure

PERFORM THE SELF-DIAGNOSIS Turn the ignition switch ON. Turn the DCA system ON, and wait for 30 seconds or more. Perform "All DTC Reading" with CONSULT. Check if the "U1000" is detected as the current malfunction in self-diagnosis results of "ICC/ADAS". Is "U1000" detected as the current malfunction? YES: Refer to " «TROUBLE DIAGNOSIS FLOW CHART»(ref-523993-S38740783062013012500000) ". NO: Refer to " «INTERMITTENT INCIDENT»(ref-523989-S35030212592013012500000) ".

DTC	Trouble diagnosis name	DTC detecting condition	Possible causes
U1000	CAN COMM CIRCUIT	If accelerator pedal actuator is not transmitting or receiving ITS communication signal for 2 seconds or more.	ITS communication system

ACCELERATOR PEDAL ACTUATOR: Diagnosis Procedure

PERFORM THE SELF-DIAGNOSIS Turn ignition switch ON. Turn the DCA system ON, and wait for 2 seconds or more. Perform "All DTC Reading" with CONSULT. Check if the "U1000" is detected as the current malfunction in self-diagnosis results of "ACCELE PEDAL ACT". Is "U1000" detected as the current malfunction? YES: Refer to " «TROUBLE DIAGNOSIS FLOW CHART»(ref-523993-S38740783062013012500000) ". NO: Refer to " «INTERMITTENT INCIDENT»(ref-523989-S35030212592013012500000) ".

DTC (On board display)	Trouble diagnosis name	DTC detecting condition	Possible causes
U1010 (110)	CONTROL UNIT (CAN)	If ICC sensor integrated unit detects malfunction by CAN controller initial diagnosis	ICC sensor integrated unit

PERFORM DTC CONFIRMATION PROCEDURE Turn the DCA system ON. Perform "All DTC Reading" with CONSULT. Check if the "U1010" is detected as the current malfunction in self-diagnosis results of "ICC/ADAS". Is "U1010" detected as the current malfunction? YES: Replace the ICC sensor integrated unit. NO: INSPECTION END

DTC	Trouble diagnosis name	DTC detecting condition	Possible causes
U1010	CONTROL UNIT (CAN)	If accelerator pedal actuator detects malfunction by CAN controller initial diagnosis.	Accelerator pedal actuator

PERFORM DTC CONFIRMATION PROCEDURE Turn the DCA system ON. Perform "All DTC Reading" with CONSULT. Check if the DTC "U1010" is detected as the current malfunction in self-diagnosis results of "ACCELE PEDAL ACT". Is "U1010" detected as the current malfunction? YES: Replace the accelerator pedal assembly. NO: INSPECTION END

CHECK FUSES Check if any of the following fuses are blown: Signal name Fuse No. Ignition power supply 45 Is the inspection result normal? YES: GO TO 2. NO: Replace the blown fuse after repairing the affected circuit if a fuse is blown.
CHECK ICC SENSOR INTEGRATED UNIT POWER SUPPLY CIRCUIT Turn the ignition switch ON. Check voltage between ICC sensor integrated unit harness connector and ground. Terminal Voltage (Approx.) (+) (-) ICC sensor integrated unit Ground Connector Terminal E67 1 Battery voltage Is the inspection result normal? YES: GO TO 3. NO: Repair the ICC sensor integrated unit power supply circuit.
CHECK ICC SENSOR INTEGRATED UNIT GROUND CIRCUIT Turn the ignition switch OFF. Disconnect the ICC sensor integrated unit connector. Check for continuity between ICC sensor integrated unit harness connector and ground. ICC sensor integrated unit Ground Continuity Connector Terminal E67 4 Existed Is the inspection result normal? YES: INSPECTION END NO: Repair the ICC sensor integrated unit ground circuit.

BRAKE BOOSTER CONTROL UNIT: Diagnosis Procedure

CHECK FUSES Check if any of the following fuses are blown: Signal name Fuse No. Battery power supply 33 Ignition power supply 45 Is the inspection result normal? YES: GO TO 2. NO: Replace the blown fuse after repairing the affected circuit if a fuse is blown.
CHECK BRAKE BOOSTER CONTROL UNIT POWER SUPPLY CIRCUIT Turn the ignition switch ON. Check voltage between brake booster control unit harness connector and ground. Terminal Condition Voltage (Approx.) (+) (-) Brake booster control unit Ground Ignition switch Connector Terminal B250 1 OFF Battery voltage 2 B249 33 ON 42 Is the inspection result normal? YES: GO TO 3. NO: Repair the brake booster control unit power supply circuit.
CHECK BRAKE BOOSTER CONTROL UNIT GROUND CIRCUIT Turn the ignition switch OFF. Disconnect brake booster control unit connector. Check for continuity between brake booster control unit harness connector and ground. Brake booster control unit Ground Continuity Connector Terminal B250 19 Existed 20 B249 46 Is the inspection result normal? YES: INSPECTION END NO: Repair the brake booster control unit ground circuit.

CHECK FUSES Check if any of the following fuses are blown: Power supply Fuse No. Battery power supply 61 Ignition power supply 45 Is the inspection result normal? YES: GO TO 2. NO: Replace the blown fuse after repairing the affected circuit if a fuse is blown.
CHECK ACCELERATOR PEDAL ACTUATOR POWER SUPPLY CIRCUIT Turn the ignition switch OFF. Disconnect the accelerator pedal actuator connector. Check voltage between accelerator pedal actuator harness connector and ground. Terminals Condition Voltage (+) (-) Accelerator pedal actuator Ground Ignition switch Connector Terminal E115 2 OFF Battery voltage 1 ON Is the inspection result normal? YES: GO TO 3. NO: Repair the accelerator pedal actuator power supply circuit.
CHECK ACCELERATOR PEDAL ACTUATOR GROUND CIRCUIT Check for continuity between accelerator pedal actuator harness connector and ground. Accelerator pedal actuator Ground Continuity Connector Terminal E115 4 Existed Is the inspection result normal? YES: INSPECTION END NO: Repair the accelerator pedal actuator ground circuit.

CHECK ICC WARNING CHIME POWER SUPPLY CIRCUIT Turn ignition switch OFF. Disconnect the ICC warning chime connector. Turn ignition switch ON. Check voltage between ICC warning chime harness connector and ground. Terminals Voltage (Approx.) (+) (-) ICC warning chime Ground Connector Terminal M17 1 Battery voltage Is the inspection result normal? YES: GO TO 2. NO: Repair the harnesses or connectors.
CHECK ICC WARNING CHIME SIGNAL CIRCUIT Turn ignition switch OFF. Disconnect brake booster control unit connector. Check for continuity between the ICC warning chime harness connector and brake booster control unit harness connector. ICC warning chime Brake booster control unit Continuity Connector Terminal Connector Terminal M17 3 B250 21 Existed Is the inspection result normal? YES: GO TO 3. NO: Repair the harnesses or connectors.
CHECK ICC WARNING CHIME SIGNAL CIRCUIT SHORT Check for continuity between ICC warning chime harness connector and ground. ICC warning chime Ground Continuity Connector Terminal M17 3 Not existed Is the inspection result normal? YES: GO TO 4. NO: Repair the harnesses or connectors.
CHECK ICC WARNING CHIME Check the ICC warning chime. Refer to " «COMPONENT INSPECTION»(ref-524071-S02242948002013012500000) ". Is the inspection result normal? YES: Replace the brake booster control unit. NO: Replace the ICC warning chime.

ICC WARNING CHIME INSPECTION Apply the battery voltage between ICC warning chime terminals, and then check if the ICC warning chime sounds. Terminal Condition Warning chime (+) (-) 1 3 When the battery voltage is applied Sounds When the battery voltage is not applied Does not sound Is the inspection result normal? YES: INSPECTION END NO: Replace the ICC warning chime.

VALUES ON THE DIAGNOSIS TOOL

Monitor item	Condition		Value/Status
MAIN SW	Ignition switch ON	When MAIN switch is pressed	On
MAIN SW	Ignition switch ON	When MAIN switch is not pressed	Off
SET/COAST SW	Ignition switch ON	When SET/COAST switch is pressed	On
SET/COAST SW	Ignition switch ON	When SET/COAST switch is not pressed	Off
CANCEL SW	Ignition switch ON	When CANCEL switch is pressed	On
CANCEL SW	Ignition switch ON	When CANCEL switch is not pressed	Off
RESUME/ACC SW	Ignition switch ON	When RESUME/ACCELERATE switch is pressed	On
RESUME/ACC SW	Ignition switch ON	When RESUME/ACCELERATE switch is not pressed	Off
DISTANCE SW	Ignition switch ON	When DISTANCE switch is pressed	On
DISTANCE SW	Ignition switch ON	When DISTANCE switch is not pressed	Off
CRUISE OPE	Drive the vehicle and operate the ICC system.	When ICC system is controlling	On
CRUISE OPE	Drive the vehicle and operate the ICC system.	When ICC system is not controlling	Off
BRAKE SW	Ignition switch ON	When brake pedal is depressed	Off
BRAKE SW	Ignition switch ON	When brake pedal is not depressed	On
STOP LAMP SW	Ignition switch ON	When brake pedal is depressed	On
STOP LAMP SW	Ignition switch ON	When brake pedal is not depressed	Off
IDLE SW	Engine running	Idling	On
IDLE SW	Engine running	Except idling (depress accelerator pedal)	Off
SET DISTANCE	Start the engine and turn the ICC system ON. Press the DISTANCE switch to change the vehicle-to-vehicle distance setting.	When set to "long"	Long
		When set to "middle"	Mid
		When set to "short"	Short
CRUISE LAMP	Start the engine and press MAIN switch.	ICC system ON (MAIN switch indicator ON)	On
CRUISE LAMP	Start the engine and press MAIN switch.	ICC system OFF (MAIN switch indicator OFF)	Off
OWN VHCL	Start the engine and press MAIN switch.	ICC system ON (Own vehicle indicator ON)	On
OWN VHCL	Start the engine and press MAIN switch.	ICC system OFF (Own vehicle indicator OFF)	Off
VHCL AHEAD	Drive the vehicle and activate the vehicle-to-vehicle distance control mode.	When a vehicle ahead is detected (vehicle ahead detection indicator ON)	On
VHCL AHEAD		When a vehicle ahead is not detected (vehicle ahead detection indicator OFF)	Off
ICC WARNING	Start the engine and press the MAIN switch.	When ICC system is malfunctioning (ICC system warning lamp ON)	On
ICC WARNING	Start the engine and press the MAIN switch.	When ICC system is normal (ICC system warning lamp OFF)	Off
VHCL SPEED SE	While driving		Value of vehicle speed signal (wheel speed)
SET VHCL SPD	While driving	When vehicle speed is set	Displays the set vehicle speed.
BUZZER O/P	Engine running	When the buzzer output signal is output	On
BUZZER O/P	Engine running	When the buzzer output signal is not output	Off
THRTL SENSOR	NOTE: The item is indicated, but not monitored.		0.0
ENGINE RPM	Engine running		Equivalent to tachometer reading
WIPER SW	Ignition switch ON	Wiper not operating	Off
		Wiper LO operation	Low
		Wiper HI operation	High
YAW RATE	NOTE: The item is indicated, but not monitored.		0.0
BA WARNING	Engine running	IBA OFF indicator lamp ON When IBA system is malfunctioning When IBA system is turned to OFF	On
BA WARNING	Engine running	IBA OFF indicator lamp OFF When IBA system is normal When IBA system is turned to ON	Off
FUNC ITEM	Ignition switch ON		FUNC1
LDP SELECT	Ignition switch ON	When the LDP system setting is ON	On
LDP SELECT	Ignition switch ON	When the LDP system setting is OFF	Off
DCA SELECT	Ignition switch ON	When the DCA system setting is ON	On
DCA SELECT	Ignition switch ON	When the DCA system setting is OFF	Off
RELEASE SW NO	Engine running	When brake pedal is depressed	On
RELEASE SW NO	Engine running	When brake pedal is not depressed	Off
RELEASE SW NC	Engine running	When brake pedal is depressed	Off
RELEASE SW NC	Engine running	When brake pedal is not depressed	On
STP LMP DRIVE	Drive the vehicle and activate the vehicle-to-vehicle distance control mode.	When ICC brake hold relay is activated	On
STP LMP DRIVE		When the ICC brake hold relay is not activated	Off
PRESS SENS	Engine running	When brake pedal is not depressed	0.0
PRESS SENS	Engine running	When brake pedal is depressed	Brake fluid pressure value
D RANGE SW	Engine running	When the selector lever is in "D", "DS" position or manual mode	On
D RANGE SW	Engine running	When the selector lever is in any position other than "D", "DS" or manual mode	Off
NP RANGE SW	Engine running	When the selector lever is in "N", "P" position	On
NP RANGE SW	Engine running	When the selector lever is in any position other than "N", "P"	Off
PKB SW	Ignition switch ON	When the parking brake is applied	On
PKB SW	Ignition switch ON	When the parking brake is released	Off
PWR SUP MONI	Engine running		Power supply voltage value of ICC sensor integrated unit
VHCL SPD AT	While driving		Value of A/T vehicle speed sensor signal
THRTL OPENING	Engine running	Depress accelerator pedal	Displays the throttle position.
GEAR	While driving		Displays the shift position.
CLUTCH SW SIG	NOTE: The item is indicated, but not monitored.		Off
NP SW SIG	NOTE: The item is indicated, but not used.
MODE SIG	Start the engine and press MAIN switch.	When ICC system is deactivated	Off
		When vehicle-to-vehicle distance control mode is activated	ICC
		When conventional (fixed speed) cruise control mode is activated	ASCD
SET DISP IND	Start the engine and activate the conventional (fixed speed) cruise control mode. Press SET/COAST switch.	SET switch indicator lamp ON	On
SET DISP IND		SET switch indicator lamp OFF	Off
LDP SYSTEM ON	Engine running	When the LDP system is ON (LDP ON indicator lamp ON)	On
LDP SYSTEM ON	Engine running	When the LDP system is OFF (LDP ON indicator lamp OFF)	Off
LDW SYSTEM ON	Ignition switch ON	When the LDW system is ON (Warning systems ON indicator lamp ON)	On
LDW SYSTEM ON	Ignition switch ON	When the LDW system is OFF (Warning systems ON indicator lamp OFF)	Off
FCW SYSTEM ON	Ignition switch ON	When the FCW system is ON (Warning systems ON indicator lamp ON)	On
FCW SYSTEM ON	Ignition switch ON	When the FCW system is OFF (Warning systems ON indicator lamp OFF)	Off
DISTANCE	Drive the vehicle and activate the vehicle-to-vehicle distance control mode.	When a vehicle ahead is detected	Displays the distance from the preceding vehicle.
DISTANCE		When a vehicle ahead is not detected	0.0
RELATIVE SPD	Drive the vehicle and activate the vehicle-to-vehicle distance control mode.	When a vehicle ahead is detected	Displays the relative speed.
RELATIVE SPD		When a vehicle ahead is not detected	0.0
DCA ON SW	NOTE: The item is indicated, but not monitored.		Off
DCA ON IND	Start the engine	DCA system OFF (DCA system switch indicator OFF)	Off
DCA ON IND	Start the engine	DCA system ON (DCA system switch indicator ON)	On
DCA VHL AHED	Drive the vehicle and activate the DCA system.	When a vehicle ahead is not detected (vehicle ahead detection indicator OFF)	Off
DCA VHL AHED	Drive the vehicle and activate the DCA system.	When a vehicle ahead is detected (vehicle ahead detection indicator ON)	On
IBA SW	Ignition switch ON	When the IBA OFF switch is not pressed	Off
IBA SW	Ignition switch ON	When the IBA OFF switch is pressed	On
DYNA ASIST SW	Ignition switch ON	When the dynamic driver assistance switch is pressed	On
DYNA ASIST SW	Ignition switch ON	When the dynamic driver assistance switch is not pressed	Off
APA TEMP	Engine running		Display the accelerator pedal actuator integrated motor temperature
APA PWR	Ignition switch ON		Power supply voltage

NOTE
The item is indicated, but not monitored.

NOTE
The item is indicated, but not monitored.

NOTE
The item is indicated, but not monitored.

NOTE
The item is indicated, but not used.

NOTE
The item is indicated, but not monitored.

Scheme 44

Scheme 44: TERMINAL LAYOUT

DTC Inspection Priority Chart

If multiple DTCs are detected simultaneously, check them one by one depending on the following DTC inspection priority chart

Priority	Detected items (DTC)
1	U1000: CAN COMM CIRCUIT U1010: CONTROL UNIT (CAN)
2	C1A31: BCU INTERNAL MALF C1F02: APA C/U MALF
3	C1A01: POWER SUPPLY CIR C1A02: POWER SUPPLY CIR 2 C1A04: ABS/TCS/VDC CIRC C1A05: BRAKE SW/STOP L SW C1A06: OPERATION SW CIRC C1A08: PRESS SEN CIRCUIT C1A09: BOOSTER SOL/V CIRC C1A10: RELEASE SW CIRC C1A11: PRESSURE CONTROL C1A12: LASER BEAM OFFCNTR C1A13: STOP LAMP RLY FIX C1A14: ECM CIRCUIT C1A16: RADAR STAIN C1A18: LASER AIMING INCMP C1A21: UNIT HIGH TEMP C1A22: BCU CIRCUIT C1A24: NP RANGE C1A28: BCU PWR SUPLY CIR C1A29: BCU PWR SUPLY CIR2 C1A30: BCU CAN COMM CIRC C1A32: IBA FLAG STUCK C1A33: CAN TRANSMISSION ERROR C1A34: COMMAND ERROR C1A35: APA CIR C1A36: APA CAN COMM CIR C1A37: APA CAN CIR2 C1A38: APA CAN CIR1 C1A39: STRG SEN CIR C1A40: SYSTEM SW CIRC C1F01: APA MOTOR MALF C1F05: APA PWR SUPLY CIR U0121: VDC CAN CIR2 U0126: STRG SEN CAN CIR1 U0129: BCU CAN CIR2 U0401: ECM CAN CIR1 U0402: TCM CAN CIR1 U0415: VDC CAN CIR1 U0418: BCU CAN CIR1 U0428: STRG SEN CAN CIR2
4	C1A03: VHCL SPEED SE CIRC
5	C1A15: GEAR POSITION
6	C1A00: CONTROL UNIT

DTC Index

Note. The details of time display are as per the following: CRNT: A malfunction is detected now PAST: A malfunction was detected in the past IGN counter is displayed on FFD (Freeze Frame Data). 0: The malfunctions that are detected now CAN communication system (U1000, U1010) 1 - 39: It increases like 0 --> 1 --> 2... 38 --> 39 after returning to the normal condition whenever the ignition switch OFF --> ON. It returns to 0 when a malfunction is detected again in the process. If it is over 39, it is fixed to 39 until the self-diagnosis results are erased. Other than CAN communication system (Other than U1000, U1010) 1 - 49: It increases like 0 --> 1 --> 2... 38 --> 49 after returning to the normal condition whenever the ignition switch OFF --> ON. It returns to 0 when a malfunction is detected again in the process. If it is over 49, it is fixed to 49 until the self-diagnosis results are erased.

Note. IBA system automatically returns to ON, when erasing self diagnosis result.

X: Applicable
DTC		CONSULT display	ICC system warning lamp	Fail-safe function
CONSULT	On board display	CONSULT display	ICC system warning lamp	Vehicle-to-vehicle distance control mode	Conventional (fixed speed) cruise control mode	IBA system
C1A00	0	CONTROL UNIT	X	X	X	X
C1A01	1	POWER SUPPLY CIR	X	X	X	X
C1A02	2	POWER SUPPLY CIR 2	X	X	X	X
C1A03	3	VHCL SPEED SE CIRC	X	X	X	X
C1A04	4	ABS/TCS/VDC CIRC	X	X	X	X
C1A05	5	BRAKE SW/STOP L SW	X	X	X	X
C1A06	6	OPERATION SW CIRC	X	X	X
C1A08	8	PRESS SEN CIRCUIT	X	X	X	X
C1A09	9	BOOSTER SOL/V CIRC	X	X	X	X
C1A10	10	RELEASE SW CIRC	X	X	X	X
C1A11	11	PRESSURE CONTROL	X	X	X	X
C1A12	12	LASER BEAM OFFCNTR	X	X		X
C1A13	13	STOP LAMP RLY FIX	X	X		X
C1A14	14	ECM CIRCUIT	X	X	X
C1A15	15	GEAR POSITION	X	X	X	X
C1A16	16	RADAR STAIN	X	X		X
C1A18	18	LASER AIMING INCMP	X	X		X
C1A21	21	UNIT HIGH TEMP	X	X	X	X
C1A22	22	BCU CIRCUIT	X	X	X	X
C1A24	24	NP RANGE	X	X	X	X
C1A28	28	BCU PWR SUPLY CIR	X	X	X	X
C1A29	29	BCU PWR SUPLY CIR2	X	X	X	X
C1A30	30	BCU CAN COMM CIRC	X	X	X	X
C1A31	31	BCU INTERNAL MALF	X	X	X	X
C1A32	32	IBA FLAG STUCK	X	X	X	X
C1A33	33	CAN TRANSMISSION ERROR	X	X	X	X
C1A34	34	COMMAND ERROR	X	X	X	X
C1A35	35	APA CIR	X	X
C1A36	36	APA CAN COMM CIR	X	X
C1A37	133	APA CAN CIR2	X	X	X
C1A38	132	APA CAN CIR1	X	X	X
C1A39	39	STRG SEN CIR	X	X	X
C1A40	40	SYSTEM SW CIRC	X	X	X	X
NO DTC IS DETECTED. FURTHER TESTING MAY BE REQUIRED	55	NO DTC IS DETECTED. FURTHER TESTING MAY BE REQUIRED.
C1F01	91	APA MOTOR MALF	X	X
C1F02	92	APA C/U MALF	X	X
C1F05	95	APA PWR SUPLY CIR	X	X
U0121	127	VDC CAN CIR2	X	X	X	X
U0126	130	STRG SEN CAN CIR1	X	X	X
U0129	125	BCU CAN CIR2	X	X	X	X
U0401	120	ECM CAN CIR1	X	X	X	X
U0402	122	TCM CAN CIR1	X	X	X	X
U0415	126	VDC CAN CIR1	X	X	X	X
U0418	124	BCU CAN CIR1	X	X	X	X
U0428	131	STRG SEN CAN CIR2	X	X	X
U1000	100	CAN COMM CIRCUIT	X	X	X	X
U1010	110	CONTROL UNIT (CAN)	X	X	X	X

ICC/ADAS DTC INDEX

Scheme 45

Scheme 45: TERMINAL LAYOUT

Monitor item	Condition		Value/Status
TGT FBK FRC	Drive the vehicle and operate the DCA system	When the ICC sensor integrated unit is controlling the accelerator pedal actuator	It changes with the demand from the ICC sensor integrated unit.
TGT MOT POSI	NOTE: The item is indicated, but not used.
ACT MOT POSI	Engine running	Depress accelerator pedal	It changes according to the depressed amount of accelerator pedal
AP OPEN	Engine running	Depress accelerator pedal	It changes according to the depressed amount of accelerator pedal
APA TEMP	Engine running		Display the accelerator pedal actuator integrated motor temperature
APA CURRENT	Drive the vehicle and operate the DCA system	When the ICC sensor integrated unit is controlling the accelerator pedal actuator	Display the accelerator pedal actuator motor operation consumption current
APA PWR	Ignition switch ON		Battery voltage
APA OPE STATS	Engine running	When the accelerator pedal actuator control is permitted	On
APA OPE STATS	Engine running	When the accelerator pedal actuator control is invalid	Off
APA STATS	Engine running	When the accelerator pedal actuator is normal	Ready
		When the accelerator pedal actuator is temporarily malfunctioning	TP NG
		When the accelerator pedal actuator is malfunctioning	NG
		During the accelerator pedal actuator operation preparations	Init

NOTE
The item is indicated, but not used.

Scheme 46

Scheme 46: TERMINAL LAYOUT

If multiple DTCs are detected simultaneously, check them one by one depending on the following DTC inspection priority chart

Priority	Detected items (DTC)
1	U1000: CAN COMM CIRCUIT U1010: CONTROL UNIT (CAN)
2	C1F02: APA C/U MALF
3	C1F01: APA MOTOR MALF C1F03: APA HI TEMP C1F05: APA PWR SUPLY CIR C1F06: CAN CIR2 C1F07: CAN CIR1

Note. The details of time display are as per the following: CRNT: A malfunction is detected now PAST: A malfunction was detected in the past IGN counter is displayed in FFD (Freeze Frame Data). 0: The malfunctions that are detected now 1 - 39: It increases like 0 --> 1 --> 2... 38 --> 39 after returning to the normal condition whenever the ignition switch OFF --> ON. It returns to 0 when a malfunction is detected again in the process. If it is over 39, it is fixed to 39 until the self-diagnosis results are erased.

X: Applicable
CONSULT display	ICC system warning lamp	Fail-safe function
C1F01: APA MOTOR MALF	X	X
C1F02: APA C/U MALF	X	X
C1F03: APA HI TEMP
C1F05: APA PWR SUPLY CIR	X	X
C1F06: CAN CIR2	X	X
C1F07: CAN CIR1	X	X
U1000: CAN COMM CIRCUIT	X	X
U1010: CONTROL UNIT (CAN)	X	X

ACCELE PEDAL ACT DTC INDEX

Symptom Table

Symptoms		Reference
Operation	Switch does not turn ON	Refer to " DESCRIPTION ".
	Switch does not turn OFF	Refer to " DESCRIPTION ".
	DCA system setting cannot be turned ON from the navigation screen	Refer to " DESCRIPTION ".
	DCA system setting cannot be turned OFF from the navigation screen	Refer to " DESCRIPTION ".
	DCA system not activated (switch is ON)	Refer to " DESCRIPTION ".
Display/Chime	Information display is not illuminated (vehicle ahead indicator)	Refer to " DIAGNOSIS DESCRIPTION ".
Display/Chime	Chime does not sound	Refer to " DESCRIPTION ".
Control	No force generated for putting back the accelerator pedal	Refer to " DESCRIPTION ".
Detection of lead vehicle	Frequently cannot detect the vehicle ahead	Refer to " DESCRIPTION ".
	Detection zone is short	Refer to " DESCRIPTION ".
	System misidentifies a vehicle even though there is no vehicle ahead	Adjust laser beam aiming: Refer to " LASER BEAM AIMING ADJUSTMENT: DESCRIPTION ". Perform action test. Refer to " ACTION TEST: DESCRIPTION ".
	System misidentifies a vehicle in the next lane
	System does not detect the vehicle ahead at all	Refer to " DESCRIPTION ".

CHECK DCA SYSTEM SETTING Check that DCA system setting on the navigation screen is ON. Is DCA system setting ON? YES: GO TO 2. NO: Enable the DCA system setting.
PERFORM THE SELF-DIAGNOSIS Perform "All DTC Reading" with CONSULT. Check if the DTC is detected in self-diagnosis results of "ICC/ADAS". Refer to " «DTC INDEX»(ref-524071-S16725429442013012500000) " (ICC/ADAS). Is any DTC detected? YES: GO TO 7 . NO: GO TO 3 .
DYNAMIC DRIVER ASSISTANCE SWITCH INSPECTION Start the engine. Check that "DYNA ASIST SW" operates normally in "DATA MONITOR" of "ICC/ADAS" with CONSULT. Is the inspection result normal? YES: GO TO 4. NO: GO TO 6 .
CHECK DCA SYSTEM SWITCH INDICATOR CIRCUIT Start the engine. Select the active test item "DCA INDICATOR" of "ICC/ADAS" with CONSULT. Check if the DCA system switch indicator illuminates when the test item is operated. Is the inspection result normal? YES: Refer to " «INTERMITTENT INCIDENT»(ref-523989-S35030212592013012500000) ". NO: GO TO 5.
CHECK DATA MONITOR OF UNIFIED METER AND A/C AMP. Check that "DCA IND" operates normally in "DATA MONITOR" of "METER/M&A" with CONSULT. Is the inspection result normal? YES: Replace the combination meter. NO: Replace the unified meter and A/C amp.
CHECK STEERING SWITCH CIRCUIT Check the steering switch circuit. Refer to " «DIAGNOSIS PROCEDURE»(ref-524071-S10038444982013012500000) ". Is the inspection result normal? YES: GO TO 8 . NO: GO TO 7.
REPAIR OR REPLACE MALFUNCTIONING PARTS. Repair or replace malfunctioning parts. : GO TO 8.
CHECK DCA SYSTEM Erase "self-diagnosis result", and then perform "All DTC Reading" again after performing the action test. (Refer to " «ACTION TEST: DESCRIPTION»(ref-524071-S40407071772013012500000) " for action test.) Check that the DCA system is normal. : INSPECTION END

CHECK DCA SYSTEM SETTING Start the engine. Check that the DCA system settings is selectable on the navigation screen. Is the inspection result normal? YES: GO TO 3 . NO: GO TO 2.
PERFORM THE SELF-DIAGNOSIS Perform "All DTC Reading" with CONSULT. Check if the DTC is detected in self-diagnosis results of "ICC/ADAS", "MULTI AV" and "METER/M&A". Refer to the following: ICC/ADAS: " «DTC INDEX»(ref-524071-S16725429442013012500000) " (ICC/ADAS) MULTI AV: AV-175, "DTC Index" METER/M&A: MWI-91, "DTC Index" Is any DTC detected? YES: GO TO 5 . NO: INSPECTION END
CHECK DATA MONITOR OF ICC SENSOR INTEGRATED UNIT Check that "DCA SELECT" operates normally in "DATA MONITOR" of "ICC/ADAS" with CONSULT. Is the inspection result normal? YES: Refer to " «ON BOARD DIAGNOSIS FUNCTION»(ref-523997-S24884491942013012500000) ". NO: GO TO 4.
CHECK MULTIFUNCTION SWITCH Operate the multifunction switch to check that the audio, navigation system, and air conditioner operate properly. Is the inspection result normal? YES: GO TO 6 . NO: Repair or replace malfunctioning parts.
REPAIR OR REPLACE MALFUNCTIONING PARTS Repair or replace malfunctioning parts identified by the self-diagnosis result. : GO TO 7 .
REPLACE ICC SENSOR INTEGRATED UNIT Replace the ICC sensor integrated unit. Refer to " «EXPLODED VIEW»(ref-524071-S36884752842013012500000) ". Adjust the laser beam aiming. Refer to " «LASER BEAM AIMING ADJUSTMENT: DESCRIPTION»(ref-524036-S14731576282013012500000) ". : GO TO 7.
CHECK DCA SYSTEM Erase "self-diagnosis result", and then perform "All DTC Reading" again after performing the action test. (Refer to " «ACTION TEST: DESCRIPTION»(ref-524071-S40407071772013012500000) " for action test.) Check if the DCA system is normal. : INSPECTION END

CHECK CAUSE OF AUTOMATIC CANCELLATION Check if there is any cancellation cause in the "CAUSE OF AUTO-CANCEL" on "WORK SUPPORT" of "ICC/ADAS" with CONSULT. Is it displayed? Not displayed: GO TO 2 . "VHCL SPD UNMATCH": Refer to " «DTC LOGIC»(ref-524071-S28737122632013012500000) ". "IGN LOW VOLT": Refer to " «DTC LOGIC»(ref-524071-S29428413172013012500000) ". "CAN COMM ERROR": Refer to " «ICC SENSOR INTEGRATED UNIT: DTC LOGIC»(ref-524071-S20280562102013012500000) ". "ABS/TCS/VDC CIRC": Refer to " «DTC LOGIC»(ref-524071-S31245790752013012500000) ". "BCU CIRCUIT": Refer to " «DTC LOGIC»(ref-524071-S07791867602013012500000) ". "APA HI TEMP": Refer to " «DTC LOGIC»(ref-524071-S18163150342013012500000) ".
PERFORM ALL OF THE SELF-DIAGNOSIS Perform "All DTC Reading". Check if any DTC is detected in self-diagnosis results of "ICC/ADAS". Refer to " «DTC INDEX»(ref-524071-S16725429442013012500000) " (ICC/ADAS). Is any DTC detected? YES: GO TO 3. NO: GO TO 4 .
REPAIR OR REPLACE MALFUNCTIONING PARTS Repair or replace malfunctioning parts identified by the self-diagnosis result. : GO TO 6 .
CHECK EACH SWITCH AND VEHICLE SPEED SIGNAL Start the engine. Check that the following items operate normally in "DATA MONITOR" of "ICC/ADAS": "VHCL SPEED SE" "BRAKE SW" "DCA ON SW" Is there a malfunctioning item? All items are normal: GO TO 5. "VHCL SPEED SE": Refer to " «DTC LOGIC»(ref-524071-S28737122632013012500000) ". "BRAKE SW": Refer to " «DTC LOGIC»(ref-524071-S42611059092013012500000) ". "DCA ON SW": Refer to " «DTC LOGIC»(ref-524071-S24483819542013012500000) ".
REPLACE ICC SENSOR INTEGRATED UNIT Replace the ICC sensor integrated unit. Refer to " «EXPLODED VIEW»(ref-524071-S36884752842013012500000) ". Adjust the laser beam aiming. Refer to " «LASER BEAM AIMING ADJUSTMENT: DESCRIPTION»(ref-524036-S14731576282013012500000) ". : GO TO 6.
CHECK DCA SYSTEM Erase "self-diagnosis result", and then perform "All DTC Reading" again after performing the action test. (Refer to " «ACTION TEST: DESCRIPTION»(ref-524071-S40407071772013012500000) " for action test.) Check that the DCA system is normal. : INSPECTION END

PERFORM ACTIVE TEST Check if the warning chime sounds on the active test item "ICC BUZZER" of "ICC/ADAS" with CONSULT. Does the warning chime sound? YES: GO TO 2. NO: GO TO 3 .
CHECK THE MALFUNCTION SYMPTOM DURING WARNING CHIME OPERATION Understand the vehicle ahead detection condition when the malfunction occurred. If the warning chime should have sounded, replace the ICC sensor integrated unit. Refer to " «EXPLODED VIEW»(ref-524071-S36884752842013012500000) ". Adjust the laser beam aiming. Refer to " «LASER BEAM AIMING ADJUSTMENT: DESCRIPTION»(ref-524036-S14731576282013012500000) ". : GO TO 8 .
CHECK ICC WARNING CHIME CIRCUIT Check the ICC warning chime circuit. Refer to " «COMPONENT FUNCTION CHECK»(ref-524071-S36131648462013012500000) ". Is the inspection result normal? YES: GO TO 4. NO: GO TO 6 .
PERFORM THE SELF-DIAGNOSIS Perform "All DTC Reading" with CONSULT. Check if the "U1000" is detected in self-diagnosis results of "ICC/ADAS". Is "U1000" detected? YES: GO TO 5 . NO: GO TO 7 .
CAN COMMUNICATIONS INSPECTION Check the CAN communication and repair or replace malfunctioning parts. Refer to " «ICC SENSOR INTEGRATED UNIT: DTC LOGIC»(ref-524071-S20280562102013012500000) ". : GO TO 8 .
REPAIR OR REPLACE MALFUNCTIONING PARTS Repair or replace malfunctioning parts. : GO TO 8 .
REPLACE ICC SENSOR INTEGRATED UNIT Replace the ICC sensor integrated unit. Refer to " «EXPLODED VIEW»(ref-524071-S36884752842013012500000) ". Adjust the laser beam aiming. Refer to " «LASER BEAM AIMING ADJUSTMENT: DESCRIPTION»(ref-524036-S14731576282013012500000) ". : GO TO 8.
CHECK DCA SYSTEM Erase "self-diagnosis result", and then perform "All DTC Reading" again after performing the action test. (Refer to " «ACTION TEST: DESCRIPTION»(ref-524071-S40407071772013012500000) " for action test.) Check if the DCA system is normal. : INSPECTION END

PERFORM THE SELF-DIAGNOSIS Perform "All DTC Reading" with CONSULT. Check if any DTC is detected in self-diagnosis results of "ICC/ADAS" or "ACCELE PEDAL ACT". Is any DTC detected? YES: GO TO 2. NO: GO TO 3 .
REPAIR OR REPLACE THE MALFUNCTIONING PARTS Repair or replace malfunctioning parts. Refer to " «DTC INDEX»(ref-524071-S16725429442013012500000) " (ICC/ADAS) or " «DTC INDEX»(ref-524071-S11509892152013012500000) " (ACCELE PEDAL ACT). : GO TO 5 .
PERFORM ACTIVE TEST Check if the accelerator pedal actuator operates by the active test items "ACCELERATOR PEDAL ACTUATOR TEST1" and "ACCELERATOR PEDAL ACTUATOR TEST2" of "ACCELE PEDAL ACT" with CONSULT. Does it operate? YES: GO TO 4. NO: Replace the accelerator pedal assembly.
CHECK VEHICLE AHEAD DETECTION PERFORMANCE Understand the vehicle ahead detection condition when the malfunction occurred. If the detecting function is malfunctioning, check according to " «DESCRIPTION»(ref-524071-S05908713432013012500000) ". : INSPECTION END
CHECK DCA SYSTEM Erase "self-diagnosis result", and then perform "All DTC Reading" again after performing the action test. (Refer to " «ACTION TEST: DESCRIPTION»(ref-524071-S40407071772013012500000) " for action test.) Check if the DCA system is normal. : INSPECTION END

VISUAL CHECK (1) Check ICC sensor integrated unit body window for contamination and foreign materials. Do foreign materials adhere? YES: GO TO 2. NO: GO TO 3 .
WIPE OUT DIRT AND FOREIGN OBJECTS Wipe out the contamination and/or foreign materials from the ICC sensor integrated unit body window. : GO TO 6 .
VISUAL CHECK (2) Check ICC sensor integrated unit body window for cracks and/or scratches. Are there cracks? YES: GO TO 5 . NO: GO TO 4 .
LASER BEAM AIMING ADJUSTMENT Adjust the laser beam aiming. Refer to " «LASER BEAM AIMING ADJUSTMENT: DESCRIPTION»(ref-524036-S14731576282013012500000) ". Perform action test. Refer to " «ACTION TEST: DESCRIPTION»(ref-524071-S40407071772013012500000) ". Check that the vehicle ahead detection performance improves. Does it improve? YES: INSPECTION END NO: GO TO 5.
REPLACE ICC SENSOR INTEGRATED UNIT Replace the ICC sensor integrated unit. Refer to " «EXPLODED VIEW»(ref-524071-S36884752842013012500000) ". Adjust the laser beam aiming. Refer to " «LASER BEAM AIMING ADJUSTMENT: DESCRIPTION»(ref-524036-S14731576282013012500000) ". : GO TO 6.
CHECK DCA SYSTEM Erase "self-diagnosis result", and then perform "All DTC Reading" again after performing the action test. (Refer to " «ACTION TEST: DESCRIPTION»(ref-524071-S40407071772013012500000) " for action test.) Check that the DCA system is normal. : INSPECTION END

CHECK INFORMATION DISPLAY Start the self-diagnosis mode of combination meter. Refer to " «DIAGNOSIS DESCRIPTION»(ref-524033-S23521920062013012500000) ". Check that the segment of information display is displayed normally. Is the inspection result normal? YES: GO TO 2. NO: Replace the combination meter.
VISUAL CHECK (1) Check ICC sensor integrated unit body window for contamination and/or foreign materials. Do foreign materials adhere? YES: GO TO 3. NO: GO TO 4 .
WIPE OUT DIRT AND FOREIGN MATERIALS Wipe out the contamination and/or foreign materials from the ICC sensor integrated unit body window. : GO TO 7 .
VISUAL CHECK (2) Check ICC sensor integrated unit body window for cracks and/or scratches. Are there cracks? YES: GO TO 6 . NO: GO TO 5.
LASER BEAM AIMING ADJUSTMENT Adjust the laser beam aiming. Refer to " «LASER BEAM AIMING ADJUSTMENT: DESCRIPTION»(ref-524036-S14731576282013012500000) ". Perform action test. Refer to " «ACTION TEST: DESCRIPTION»(ref-524071-S40407071772013012500000) ". Check that the vehicle ahead detection performance improves. Does it improve? YES: INSPECTION END NO: GO TO 6.
REPLACE ICC SENSOR INTEGRATED UNIT Replace the ICC sensor integrated unit. Refer to " «EXPLODED VIEW»(ref-524071-S36884752842013012500000) ". Adjust the laser beam aiming. Refer to " «LASER BEAM AIMING ADJUSTMENT: DESCRIPTION»(ref-524036-S14731576282013012500000) ". : GO TO 7.
CHECK DCA SYSTEM Erase "self-diagnosis result", and then perform "All DTC Reading" again after performing the action test. (Refer to " «ACTION TEST: DESCRIPTION»(ref-524071-S40407071772013012500000) " for action test.) Check that the DCA system is normal. : INSPECTION END

Scheme 47

Scheme 47: PRECAUTIONS FOR DISTANCE CONTROL ASSIST (DCA) SYSTEM

Scheme 48

Driver Assistance System (Dca): Diagnosis Infiniti FX50 II рестайлинг

ACTION TEST: Special Repair Requirement (Distance Control Assist)

Scheme 38

Scheme 39

WHEN THE ON BOARD SELF-DIAGNOSIS DOES NOT START

HOW TO ERASE ON BOARD SELF-DIAGNOSIS

Scheme 40

SELF DIAGNOSTIC RESULT

ACTIVE TEST

ACCELERATOR PEDAL ACTUATOR TEST 1

ACCELERATOR PEDAL ACTUATOR TEST 2

DTC DETECTION LOGIC

DTC CONFIRMATION PROCEDURE

Diagnosis Procedure

Component Inspection (ICC Brake Switch)

Component Inspection (Stop Lamp Switch)

Scheme 41

Component Inspection

Scheme 42

Scheme 43

Component Inspection (IBA OFF Switch)

ICC SENSOR INTEGRATED UNIT: Diagnosis Procedure

ACCELERATOR PEDAL ACTUATOR: Diagnosis Procedure

BRAKE BOOSTER CONTROL UNIT: Diagnosis Procedure

VALUES ON THE DIAGNOSIS TOOL

Scheme 44

DTC Inspection Priority Chart

DTC Index

Scheme 45

Scheme 46

Symptom Table

Scheme 47

Scheme 48

More articles — Driver Assistance System (Dca)

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