DTC P0AC0-817: Hybrid Battery Pack Current Sensor Circuit Range / Performance [11/2016 - ]: Procedure

WARNING: This page is about a different car, the 2019 Toyota Highlander, 2018 Toyota Highlander, and 2017 Toyota Highlander. However, it is still accessible from the selected car via links, so may be relevant.

CHECK DTC OUTPUT (HYBRID CONTROL)

Connect the Techstream to the DLC3.
Turn the power switch on (IG).
Enter the following menus: Powertrain / Hybrid Control / Trouble Codes.

Check for DTCs.

Powertrain > Hybrid Control > Trouble Codes

Result

Result	Proceed to
P0AC0-817 only is output.	A
P0AFC-123 is output.	B

Turn the power switch off.

Result: 2

GO TO DTC CHART (P0AFC-123). Refer to DTC P0AFC-123: Hybrid Battery Pack Sensor Module [11/2016 - ]

Result: 1

See step 2

REPLACE HV BATTERY JUNCTION BLOCK ASSEMBLY
Refer to COMPONENTS [02/2014 - ]

Result

Proceed to

NEXT

Result: 1

NEXT

See step 3
CLEAR DTC
Refer to PROCEDURE - Step 3

Result

Proceed to

NEXT

Result: 1

NEXT

See step 4

PERFORM ROAD TEST

Drive the vehicle for approximately 10 minutes according to the freeze frame data items "Vehicle Spd", "Accelerator Degree", "Power Resource IB", "M(MG2) Trq Exec Val" and "G(MG1) Trq Exec Val".

WARNING:

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

Result

Proceed to
NEXT

Result: 1

See step 5

CHECK DTC OUTPUT (HYBRID CONTROL)

Connect the Techstream to the DLC3.
Turn the power switch on (IG).
Enter the following menus: Powertrain / Hybrid Control / Trouble Codes.

Check for DTCs.

Powertrain > Hybrid Control > Trouble Codes

Result

Proceed to
P0AC0-817 is not output.
P0AC0-817 is output again.

Turn the power switch off.

Result: 1

P0AC0-817 is not output.

COMPLETED

Result: 2

P0AC0-817 is output again.

REPLACE BATTERY VOLTAGE SENSOR. Refer to COMPONENTS [02/2014 - ]