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With Manufacturer's Scan Tool

Diagnosis Procedure




SELECTING CAN SYSTEM TYPE (HOW TO USE SPECIFICATION TABLE)

ACQUISITION OF DATA BY CONSULT-II




Attach the data acquired by CONSULT-II on the check sheet determined according to CAN system type. (Transfer the data from the display screen of the vehicle to the CAN diagnosis monitor check sheet. For display control unit: Refer to "CAN Communication Check".)




HOW TO USE CHECK SHEET TABLE
1. Unit names displayed on CONSULT-II
2. "No indication": Put a check mark to it if the unit name described in step 1 is not displayed on "SELECT SYSTEM" screen of CONSULT-II. (Unit communicating with CONSULT-II via CAN communication line)
"-": Column not used (Unit communicating with CONSULT-II excluding CAN communication line)

3. "NG": Display "NG" when malfunction is detected in the initial diagnosis of the diagnosed unit. Replace the unit if "NG" is displayed.
"-": Column not used (Initial diagnosis is not performed.)

NOTE: It is unnecessary to replace ABS actuator and electric unit (control unit) when "NG" on "INITIAL DIAG" of "ABS" is indicated at this stage. "NG" is indicated not only when malfunctioning ABS actuator and electric unit (control unit) but also other parts. See check sheet results for the system diagnosis.

4. "UNKWN": Display "UNKWN" when the diagnosed unit does not transmit the data normally. Put a check mark to it if "UNKWN" is displayed on CONSULT-II.
"-": Column not used (Transmit diagnosis is not performed.)

5. "UNKWN": Display "UNKWN" when the diagnosed unit does not receive the data normally. Put a check mark to it if "UNKWN" is displayed on CONSULT-II.
"-": Column not used (It is not necessary for CAN communication trouble diagnosis.)

NOTE: CAN communication diagnosis checks if CAN communication works normally. (Contents of data are not diagnosed.)
- When the initial conditions are reproduced, refer to "Example of Filling in Check Sheet When Initial Conditions Are Reproduced".
- When the initial conditions are not reproduced, refer to "Example of Filling in Check Sheet When Initial Conditions Are Not Reproduced".




Example of Filling in Check Sheet When Initial Conditions Are Reproduced
1. Put a check mark to "No indication" if some of unit names listed on the column of diagnosis system selection screen of a check sheet table are not displayed on "SELECT SYSTEM" screen attached to the check sheet.

NOTE: Put a check mark to "No indication" of METER A/C AMP, AUTO DRIVE POS. and IPDM E/R because METER A/C AMP, AUTO DRIVE POS. and IPDM E/R is not displayed on "SELECT SYSTEM" screen.

2. Confirm the unit name that "UNKWN" is displayed from the copy of "CAN DIAG SUPPORT MNTR" screen of "ENGINE" attached to the check sheet, and then put a check mark to the check sheet table.

NOTE: In "CAN DIAG SUPPORT MNTR" screen, "UNKWN" is displayed on "VDC/TCS/ABS", "METER/M&A" and "IPDM E/R". Put a check mark to the check sheet table.




3. Confirm the unit name that "UNKWN" is displayed on the copy of "CAN DIAG SUPPORT MNTR" screen of "A/T" as well as "ENGINE". And then, put a check mark to the check sheet table.

NOTE: In "CAN DIAG SUPPORT MNTR" screen, "UNKWN" is displayed on "VDC/TCS/ABS", "METER/M&A", "ICC/e4WD" and "AWD/4WD". But, put a check mark to "VDC/TCS/ABS" and "METER/M&A" because "UNKWN" is listed on the column of reception diagnosis of the check sheet table.




4. For display control unit, put a check mark in the following procedure:
a. Copy to "CAN DIAG SUPPORT MONITOR Check Sheet" (B) from the display screen (A).
b. Read "CAN DIAG SUPPORT MONITOR Check Sheet" (B) with "Display control unit Translation Sheet" (C).
c. Check "UNKWN" with a check mark. Put a check mark to the check sheet table.

NOTE: In "CAN DIAG SUPPORT MONITOR Check Sheet" (B), check marks are put to "CAN5" and "CAN7". In the column of the check sheet table indication in "Display control unit Translation Sheet" (C), "METER/M&A" and "IPDM E/R" is listed for "CAN5" and "CAN7". Therefore, put a check mark to "METER/M&A" and "IPDM E/R".




5. Confirm the unit name that "UNKWN" is displayed on the copy of "CAN DIAG SUPPORT MNTR" screen of "BCM" and "ABS" as well as "ENGINE". And then, put a check mark to the check sheet table.

NOTE:
- For "BCM", "UNKWN" is displayed on "IPDM E/R", "METER/M&A" and "I-KEY". But, put a check mark to "IPDM E/R" and "METER/M&A" because "UNKWN" is listed on the column of reception diagnosis of the check sheet table.
- For "ABS", "UNKWN" is displayed on "ECM", "TCM", "METER/M&A", "STRG" and "ICC". But, put a check mark to "ECM", "TCM" and "STRG" because "UNKWN" is listed on the column of reception diagnosis of the check sheet table.

NOTE: There is a case that some of "CAN DIAG SUPPORT MNTR" and "SELF-DIAG RESULTS" are not needed for diagnosis. In the case, "UNKWN" and "CAN COMM CIRCUIT [U1000]" in "Check sheet results (example)" change to "-". Then, ignore check marks on the Check sheet table.

6. Perform system diagnosis for possible causes identified.
7. Perform diagnosis again after inspection and repair. Make sure that repair is completely performed, and then end the procedure.

Start CAN system trouble diagnosis if this procedure can be confirmed. Refer to LAN-32, "CAN Communication Unit". Description and Operation




Example of Filling in Check Sheet When Initial Conditions Are Not Reproduced




1. See "SELF-DIAG RESULTS" of all units attached to the check sheet. If "CAN COMM CIRCUIT [U1000]" or "CAN COMM CIRCUIT [U1001]" is displayed, put a check mark to the applicable column of self-diagnostic results of the check sheet table.

NOTE:
- For "ENGINE", "CAN COMM CIRCUIT [U1001]" are displayed. Put a check mark to it.
- For "A/T", "CAN COMM CIRCUIT" are displayed. Put a check mark to it.
- For "BCM", "NO DTC IS DETECTED" is displayed. Do not put a check mark to it.
- For "METER A/C AMP", "CAN COMM CIRCUIT [U1000]" are displayed. Put a check mark to it.
- For "ABS", "CAN COMM CIRCUIT [U1000]" are displayed. Put a check mark to it.
- For "AUTO DRIVE POS.", "CAN COMM CIRCUIT [U1000]" are displayed. Put a check mark to it.
- For "IPDM E/R", "CAN COMM CIRCUIT [U1000]" is displayed. Put a check mark to it.

NOTE: There is a case that some of "CAN DIAG SUPPORT MNTR" and "SELF-DIAG RESULTS" are not needed for diagnosis. In the case, "UNKWN" and "CAN COMM CIRCUIT [U1000]" in "Check sheet results (example)" change to "-". Then, ignore check marks on the Check sheet table.

2. For the selected possible causes, it is expected that malfunctions have been found in the past.
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