Driver Assistance System (Adas Control Unit): Diagnosis Infiniti M37 IV

WHEN THE ON BOARD SELF-DIAGNOSIS DOES NOT START

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

Scheme 3

1. Turn the ignition switch OFF.
2. Start the engine, and then start the on board self-diagnosis.
3. 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 .
4. DTC 55 is displayed after erasing. NOTE: DTCs for existing malfunction can not be erased.
5. Turn ignition switch OFF, and finish the diagnosis.

SELF DIAGNOSTIC RESULT

Refer to " DTC INDEX ".

Scheme 4

Scheme 5

Scheme 6

ACTIVE TEST

VALUES ON THE DIAGNOSIS TOOL

Scheme 7

DTC Inspection Priority Chart

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

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 *rarr; 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 *rarr; 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.

Systems for fail-safe

Scheme 8

1. A: Vehicle-to-vehicle distance control mode
2. B: Conventional (fixed speed) cruise control mode
3. C: Intelligent Brake Assist (IBA)
4. D: Forward Collision Warning (FCW)
5. E: Distance Control Assist (DCA)
6. F: Lane Departure Warning (LDW)/Lane Departure Prevention (LDP)
7. G: Blind Spot Warning (BSW)/Blind Spot Intervention (BSI)
8. H: Active trace control function

Systems for fail-safe

Scheme 9

1. A: Vehicle-to-vehicle distance control mode
2. B: Conventional (fixed speed) cruise control mode
3. C: Intelligent Brake Assist (IBA)
4. D: Forward Collision Warning (FCW)
5. E: Distance Control Assist (DCA)
6. F: Lane Departure Warning (LDW)/Lane Departure Prevention (LDP)
7. G: Blind Spot Warning (BSW)/Blind Spot Intervention (BSI)
8. H: Active trace control function

Systems for fail-safe

Scheme 10

1. A: Vehicle-to-vehicle distance control mode
2. B: Conventional (fixed speed) cruise control mode
3. C: Intelligent Brake Assist (IBA)
4. D: Forward Collision Warning (FCW)
5. E: Distance Control Assist (DCA)
6. F: Lane Departure Warning (LDW)/Lane Departure Prevention (LDP)
7. G: Blind Spot Warning (BSW)/Blind Spot Intervention (BSI)
8. H: Active trace control function

Systems for fail-safe

Scheme 11

1. A: Vehicle-to-vehicle distance control mode
2. B: Conventional (fixed speed) cruise control mode
3. C: Intelligent Brake Assist (IBA)
4. D: Forward Collision Warning (FCW)
5. E: Distance Control Assist (DCA)
6. F: Lane Departure Warning (LDW)/Lane Departure Prevention (LDP)
7. G: Blind Spot Warning (BSW)/Blind Spot Intervention (BSI)
8. H: Active trace control function

Note. With the detection of "U1000" some systems do not perform the fail-safe operation. A system controlling based on a signal received from the control unit performs fail-safe operation when the communication with the ADAS control unit becomes inoperable.

DTC INDEX

DTC DETECTION LOGIC

DTC CONFIRMATION PROCEDURE

1. 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 Diagnostic Result" of "ICC/ADAS". Is "C1A00" detected as the current malfunction? YES: Refer to " «DIAGNOSIS PROCEDURE»(ref-573617-S08027448522013082200000) ". NO: INSPECTION END

Diagnosis Procedure

1. 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-573617-S03818570942013082200000) ". NO: Replace the ADAS control unit. Refer to " «REMOVAL AND INSTALLATION»(ref-573617-S32428842472013082200000) ".

1. PERFORM DTC CONFIRMATION PROCEDURE Start the engine. Turn the MAIN switch of ICC system ON. Perform "All DTC Reading" with CONSULT. Check if the "C1A01" or "C1A02" is detected as the current malfunction in "Self Diagnostic Result" of "ICC/ADAS". Is "C1A01" or "C1A02" detected as the current malfunction? YES: Refer to " «DIAGNOSIS PROCEDURE»(ref-573617-S36740806032013082200000) ". NO: Refer to " «INTERMITTENT INCIDENT»(ref-573569-S01363100422013082200000) ".

1. CHECK ADAS CONTROL UNIT POWER SUPPLY AND GROUND CIRCUIT Check power supply and ground circuit of ADAS control unit. Refer to " «DIAGNOSIS PROCEDURE»(ref-573617-S12133610442013082200000) ". Is the inspection result normal? YES: Replace the ADAS control unit. Refer to " «REMOVAL AND INSTALLATION»(ref-573617-S32428842472013082200000) ". NO: Repair or replace the malfunctioning parts.

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

1. PERFORM THE SELF-DIAGNOSIS Turn the ignition switch ON. Turn the MAIN switch of ICC system ON, and then wait for 30 seconds or more. Perform "All DTC Reading" with CONSULT. Check if the "U1000" is detected as the current malfunction in "Self Diagnostic Result" of "ICC/ADAS". Is "U1000" detected as the current malfunction? YES: Refer to " «TROUBLE DIAGNOSIS FLOW CHART»(ref-573573-S04258406552013082200000) ". NO: Refer to " «INTERMITTENT INCIDENT»(ref-573569-S01363100422013082200000) ".

1. PERFORM DTC CONFIRMATION PROCEDURE Turn the MAIN switch of ICC system ON. Perform "All DTC Reading" with CONSULT. Check if the "U1010" is detected as the current malfunction in "Self Diagnostic Result" of "ICC/ADAS". Is "U1010" detected as the current malfunction? YES: Replace the ADAS control unit. Refer to " «REMOVAL AND INSTALLATION»(ref-573617-S32428842472013082200000) ". NO: INSPECTION END

Note. If DTC "U150F" is detected along with DTC "U1000", first diagnose the DTC "U1000". Refer to " DTC LOGIC ".

1. PERFORM DTC CONFIRMATION PROCEDURE Start the engine. Turn the DCA, LDP, or BSI system ON. Perform "All DTC Reading" with CONSULT. Check if the "U150F" is detected as the current malfunction in "Self Diagnostic Result" of "ICC/ADAS". Is "U150F" detected as the current malfunction? YES: Refer to " «DIAGNOSIS PROCEDURE»(ref-573617-S31592551662013082200000) ". NO: Refer to " «INTERMITTENT INCIDENT»(ref-573569-S01363100422013082200000) ".

1. CHECK SELF-DIAGNOSIS RESULTS Check if "U1000" is detected other than "U150F" 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-573617-S05987788922013082200000) ". NO: GO TO 2.
2. CHECK AV CONTROL UNIT SELF-DIAGNOSIS RESULTS Check if any DTC is detected in "Self Diagnostic Result" of "MULTI AV". Is any DTC detected? YES: Perform diagnosis on the detected DTC and repair or replace the malfunctioning parts. Refer to " «DTC INDEX»(ref-573616-S07963851042013082200000) ". NO: Replace the ADAS control unit. Refer to " «REMOVAL AND INSTALLATION»(ref-573617-S32428842472013082200000) ".

1. CHECK FUSES Check if any of the following fuses are blown: Signal name Fuse No. Ignition power supply 46 Is the inspection result normal? YES: GO TO 2. NO: Replace the blown fuse after repairing the affected circuit if a fuse is blown.
2. CHECK ADAS CONTROL UNIT POWER SUPPLY CIRCUIT Check voltage between ADAS control unit harness connector and ground. Terminal Condition Voltage (Approx.) (+) (-) ADAS control unit Ground Ignition switch Connector Terminal B50 16 OFF 0 V ON Battery voltage Is the inspection result normal. YES: GO TO 3. NO: Repair the ADAS control unit power supply circuit.
3. CHECK ADAS CONTROL UNIT GROUND CIRCUIT Turn the ignition switch OFF. Disconnect the ADAS control unit connector. Check for continuity between ADAS control unit harness connector and ground. ADAS control unit Ground Continuity Connector Terminal B50 6 Existed Is the inspection result normal? YES: INSPECTION END NO: Repair the ADAS control unit ground circuit.