DTC P0AFC-123: Hybrid Battery Pack Sensor Module [08/2013 - ]: Procedure

CHECK HARNESS AND CONNECTOR (IGCT VOLTAGE)

WARNING:

Be sure to wear insulated gloves.

Check that the service plug grip is not installed.
NOTE:
After removing the service plug grip, do not turn the power switch on (READY), unless instructed by the repair service information because this may cause a malfunction.
Remove the No. 1 hybrid vehicle battery carrier bracket sub-assembly. Refer to REMOVAL [08/2013 - ] - Step 25 .
Connect the cable to the negative (-) auxiliary battery terminal.
Turn the power switch on (IG).

Measure the voltage according to the value(s) in the table below.

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

Standard Voltage

Tester Connection	Switch Condition	Specified Condition
c1-4 (IGCT) - c1-8 (GND)	Power switch on (IG)	11 to 14 V

TEXT IN ILLUSTRATION

*a	Component with harness connected (Battery Smart Unit)

NOTE:

Turning the power switch on (IG) with the service grip removed causes other DTCs to be stored. Clear the DTCs after performing this inspection.

NG → See step 2

OK → See step 3

CHECK HARNESS AND CONNECTOR (GND - BODY GROUND)

WARNING:

Be sure to wear insulated gloves.

Check that the service plug grip is not installed.
NOTE:
After removing the service plug grip, do not turn the power switch on (READY), unless instructed by the repair service information because this may cause a malfunction.
Remove the No. 1 hybrid vehicle battery carrier bracket sub-assembly. Refer to REMOVAL [08/2013 - ] - Step 25 .

Measure the resistance according to the value(s) in the table below.

Standard Resistance

Tester Connection	Switch Condition	Specified Condition
c1-8 (GND) - Body ground	Power switch off	Below 1 Ω

TEXT IN ILLUSTRATION

*a	Component with harness connected (Battery Smart Unit)

NG → REPAIR OR REPLACE HARNESS OR CONNECTOR

OK → REPAIR OR REPLACE HARNESS OR CONNECTOR (IGCT NO. 2 FUSE - BATTERY SMART UNIT)