DTC C1202-00: Master Reservoir Level Malfunction [11/2021 - 10/2023]: Description

DTC No.	Detection Item	DTC Detection Condition	Trouble Area	MIL	Note
C1202-00	Master Reservoir Level Malfunction	Either of the following is detected: The brake fluid level warning switch signal circuit is open for a certain period of time. The reservoir level is low for a certain period of time.	Open or short in brake fluid level warning switch (brake booster with master cylinder assembly) Brake fluid leaks Open or short in wire harness Low brake fluid No. 1 skid control ECU (brake booster with master cylinder assembly)	Comes on	SAE Code: C1202 Output ECU: Both skid control ECUs HINT: DTC C1202-00 is cleared when the conditions return to normal.

C1202-00 DTC DETECTION CONDITIONS

		Vehicle Condition
		Pattern 1	Pattern 2
Diagnosis Condition	-	-	-
Malfunction Status	The brake fluid level warning switch signal circuit is open for a certain period of time	◦	-
Malfunction Status	The reservoir level is low for a certain period of time	-	◦
Detection Time		-	-
Number of Trips		1 trip	1 trip

HINT:

DTC will be output when conditions for either of the patterns in the table above are met.