SUB BATTERY SYSTEM, Diagnostic DTC:B22DC

DTC Code	DTC Name
B22DC	Sub Battery Module Protection Relay High Temperature Malfunction

DESCRIPTION

DTC No.	Detection Item	DTC Detection Condition	Trouble Area	Warning Indicate	Memory
B22DC	Sub Battery Module Protection Relay High Temperature Malfunction	Protection relay temperature is continuously high for 10 seconds. (1 trip detection logic)	Sub-battery module assembly	Comes on	DTC stored

DTC No.

Detection Item

DTC Detection Condition

Trouble Area

Warning Indicate

Memory

B22DC

Sub Battery Module Protection Relay High Temperature Malfunction

Protection relay temperature is continuously high for 10 seconds.

(1 trip detection logic)

Sub-battery module assembly

Comes on

DTC stored

Tech Tips

The details of a DTC can be checked by using the DTC Sub Code of the freeze frame data that was recorded when the DTC was output.

DTC Sub Code	Detail
"2F"	Protection Relay FET Temperature1 or Protection Relay FET Temperature2 is 105°C (221°F) or more

WIRING DIAGRAM

*a	Sub-battery Module Assembly	-	-
*1	Protection relay	*2	Protection relay temperature sensor
*3	Temperature detection circuit	*4	CPU

CAUTION / NOTICE / HINT

Tech Tips

Read freeze frame data using the GTS. Freeze frame data records the sub-battery module assembly condition when malfunctions are detected.

PROCEDURE

REPLACE SUB-BATTERY MODULE ASSEMBLY

Replace the sub-battery module assembly.

Result

Proceed to
NEXT

END