DTC Check / Clear

P311 HYBRID VEHICLE CONTROL: HYBRID CONTROL SYSTEM: DTC CHECK / CLEAR

DTC CHECK / CLEAR

1. CHECK FOR DTCS (HYBRID VEHICLE CONTROL ECU)
(a) Connect the intelligent tester to the DLC3.
(b) Turn the power switch on (IG) and turn the intelligent tester on.
(c) Using the intelligent tester, check for DTCs and freeze frame data. If present, record or print the codes and the freeze frame data. Using the intelligent tester, enter the following menus: DIAGNOSIS / OBD/MOBD / HV ECU / DTC INFO / CURRENT CODES.
(d) Confirm the details of the DTCs. Hybrid Control System
2. CHECK FREEZE FRAME DATA AND INFORMATION





(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 set.

NOTICE: An information code (INF code) will be displayed in one of the INFORMATION lines 1 to 5. Check the details by following the procedures in the following steps.

HINT: In the case shown in the illustration, refer to troubleshooting for DTC P3140 and INF code 350.

(c) Read the information.





(1) Select the item from among INFORMATION 1 to 5 that has an INF code on the freeze frame data screen.
(2) Press ENTER.





(3) Additional information will be displayed as shown in the illustration.

3. CHECK FOR DTC (SYSTEMS OTHER THAN THE HYBRID VEHICLE CONTROL ECU)

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

(a) Connect the intelligent tester to the DLC3.
(b) Turn the power switch on (IG) and turn the intelligent tester on.
(c) On the intelligent tester, enter the following menus: DIAGNOSIS / OBD/MOBD / CODES (All).
(d) 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.

4. CLEAR DTCS

NOTICE: Clearing the DTCs will also clear the freeze frame data, information Information / Freeze Frame Data, and operation history data Operation History Data.

(a) Connect the intelligent tester to the DLC3.
(b) Turn the power switch on (IG) and turn the intelligent tester on.
(c) Check that the P shift position has been selected.
(d) Clear DTCs and freeze frame data using the intelligent tester.
(1) Enter the following menus: DIAGNOSIS / OBD/ MOBD / HV ECU / DTC INFO / CLEAR CODES.
(2) Press YES.