Toyota Corolla Cross: Dtc Check / Clear

DTC CHECK / CLEAR

CHECK FOR DTCS

(a) Enter the following menus.

Powertrain > HV Battery > Trouble Codes

(b) Check the DTCs and freeze frame data, and then write them down.

(c) Check the details of the DTCs.

Display Item	Description
Test Failed	Shows the malfunction judgment results during the current trip.
Pending	Shows the malfunction judgment results up to now. (Indicates the possibility of a malfunction when no DTC is confirmed.)
Confirmed	Shows the DTCs confirmed up to now. (The number of current trips differs for each DTC.)

• A pending DTC is a DTC that is stored in the battery ECU assembly during the 1st trip when the 2 trip detection logic is used.
• Freeze frame data is stored for each of the latest result DTCs, pending DTCs and confirmed DTCs.

(1) Enter the following menus.

Powertrain > HV Battery > Utility

Tester Display
Check Mode

(2) Check items on the display and press "Next".

NOTICE:

• All the stored DTCs and freeze frame data are cleared if the battery ECU assembly is changed from normal mode to check mode. Before changing modes, always check and note any DTCs and freeze frame data.
• Changing from normal mode to check mode function is not available when the ignition switch is turned to ON (READY).
• If a DTC is stored, check and note the DTC and freeze frame data following the GTS display, then change from normal mode to check mode.

CHECK FREEZE FRAME DATA

(a) If a DTC is present, select it in order to display its freeze frame data.

(b) Read the freeze frame data recorded when the DTC was stored.

CHECK TIME STAMP

HINT:

By checking Time Stamp, the time and order in which DTCs were stored in an ECU can be checked.

(a) Enter the following menus: Health Check.

(b) Perform the following steps when the data setting screen is displayed.

(c) Select the systems for which to perform Health Check and check for time stamp data.

Selectable items:

• Powertrain
• Chassis
• Body
• Store All Data

(d) Select "Yes" when "Do you want to store time stamp data?" is displayed.

HINT:

If "Yes" is not selected, time stamp data will not be stored.

(e) After Health Check has completed, select "Time Stamp Data" to display the Time Stamp screen.

(f) Select the desired system from the drop-down list on the bottom of the Time Stamp screen.

(g) Check the order and time which DTCs were stored for the selected system.

CHECK FOR DTCS (SYSTEMS EXCEPT BATTERY ECU ASSEMBLY)

HINT:

The battery ECU assembly maintains communication with other computers, including the motor generator control ECU, the ECM, and hybrid vehicle control ECU. Therefore, if the battery ECU assembly outputs a warning, it is necessary to check and record the DTCs of all systems.

(a) If DTCs are present, check the relevant systems.

HINT:

If DTCs for the CAN communication system are present in addition to other DTCs, first troubleshoot and repair any malfunctions in the CAN communication system.

CLEAR DTCS

NOTICE:

Clearing the DTCs will also clear the freeze frame data.

(a) Enter the following menus.

Powertrain > HV Battery > Trouble Codes

(b) Clear DTCs and freeze frame data.

Powertrain > HV Battery > Clear DTCs

OUTLINE

• After clearing current DTCs using the GTS (or by disconnecting the cable from the negative (-) auxiliary battery terminal), permanent DTCs can be cleared when the universal trip is performed and then the system is determined to be normal for the relevant DTCs. The driving pattern to obtain a normal judgment is described under the "Confirmation Driving Pattern" for the respective DTC.
• To clear permanent DTCs, all of the following conditions must be are met:
  • There is a history that universal trip driving was performed.
  • The vehicle has been judged as normal for 2 trips. (Normal judgment does not have to be performed in 2 consecutive trip, but normal judgment should occur in the latest trip.)
  • No malfunctions are detected.

CLEAR PERMANENT DTC

(a) Enter the following menus.

Powertrain > HV Battery > Trouble Codes

HINT:

If "YES" is displayed for the value of "PERMANENT" at the top right of the GTS screen, permanent DTCs are stored.

(b) Select the "Generic" tab.

(c) Check if permanent DTCs are stored.

HINT:

If permanent DTCs are not output, it is not necessary to continue this procedure.

(d) Clear the DTCs (even if no DTCs are stored, perform the clear DTC procedure).

Powertrain > HV Battery > Clear DTCs

NOTICE:

Do not clear the DTCs or disconnect the cable from the auxiliary battery terminal after performing this step.

(e) Perform the universal trip.

CAUTION:

When performing the driving pattern, obey all speed limits and traffic laws.

HINT:

The universal trip driving pattern and normal judgment procedure can be performed consecutively in the same driving cycle.

(1) Turn the ignition switch to ON (READY) and wait for 30 seconds or more.

(2) Drive the vehicle at 40 km/h (25 mph) or more for a total of 5 minutes or more.

HINT:

It is possible to complete the drive pattern even if the vehicle decelerates to less than 40 km/h (25 mph) during the driving cycle provided that the vehicle is driven at 40 km/h (25 mph) or more for a total of 5 minutes.

(3) Allow 10 minutes or more to elapse from the time the ignition switch turned to ON (READY).

(f) Turn the ignition switch off and wait for 2 minutes or more.

(g) Perform the normal judgment procedure in the respective confirmation driving pattern of each output DTC.

HINT:

Do not turn the ignition switch off by mistake during this step.

(h) With ignition switch ON (READY) and wait for 5 seconds or more.

(i) Turn the ignition switch off and wait for 2 minutes or more.

(j) Turn the ignition switch to ON.

(k) Enter the following menus.

Powertrain > HV Battery > Trouble Codes

(l) Check that the permanent DTCs have been cleared.

HINT:

If permanent DTCs are not output, it is not necessary to continue this procedure.

(m) Perform the normal judgment procedure in the respective confirmation driving pattern of each output DTC.

HINT:

Do not turn the ignition switch off by mistake during this step.

(n) With ignition switch ON (READY) and wait for 5 seconds or more.

(o) Turn the ignition switch off and wait for 2 minutes or more.

(p) Turn the ignition switch to ON.

(q) Enter the following menus.

Powertrain > HV Battery > Trouble Codes

(r) Check that the permanent DTCs have been cleared.

HINT:

• Permanent DTCs will be cleared if a normal judgment is obtained during 3 consecutive driving cycles with the MIL illuminated.
• The permanent DTCs are cleared when the universal trip is completed.
• If permanent DTCs are still present after the universal trip, turn the ignition switch off and wait for a while. Then, confirm that the permanent DTCs have been cleared.

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