Hybrid Battery System

HYBRID BATTERY CONTROL: HYBRID BATTERY SYSTEM: DTC CHECK / CLEAR

1. CHECK FOR DTCS (HYBRID VEHICLE CONTROL ECU)

(a) Connect the Techstream to the DLC3.

(b) Turn the power switch on (IG).

(c) Turn the Techstream on.

(d) Using the Techstream, check for DTCs and freeze frame data. If present, record or print the codes and the freeze frame data. Using the Techstream, enter the following menus: Powertrain / Hybrid Control / DTC. Read DTCs of the HV control system.

(e) Confirm the details of the DTCs. Hybrid Battery 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.

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

HINT
The hybrid vehicle control ECU maintains mutual communication with other computers, including the ECM, battery ECU, skid control ECU, power steering ECU and other. 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 Techstream to the DLC3.

(b) Turn the power switch on (IG).

(c) Turn the Techstream on.

(d) On the Techstream, the following menus: Utility / All Codes.

(e) 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 Techstream to the DLC3.

(b) Turn the power switch on (IG).

(c) Turn the Techstream on.

(d) Check that the P shift position has been selected.

(e) Enter the following menus: Powertrain / Hybrid Control / Trouble Codes.

(f) Clear DTCs and freeze frame data.