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Skyvisions, ASE Certified Technician
Category: Toyota
Satisfied Customers: 14412
Experience:  Toyota Master Diagnostic
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Code c1203 and c1360 came up on my 04 sequoia, c1203 and

Customer Question

code c1203 and c1360 came up on my 04 sequoia
JA: Just to clarify, what's the exact code? And have you tried to reset it?
Customer: c1203 and c1360 no on the clearing it yet
JA: Are you fixing your Sequoia yourself? What have you tried so far?
Customer: parts store just told me the codes I want to fix it my self
JA: Anything else you want the mechanic to know before I connect you?
Customer: no
Submitted: 5 months ago.
Category: Toyota
Expert:  Skyvisions replied 5 months ago.

Your primary malfunction here is the C1360 code. It means the master cylinder pressure sensor number one has failed or the circuitry to it has failed. Most of the time it is a bad sensor. It is the sensor with the three wire connector a red wire a black wire any white wire on the master cylinder. The C 1203 code just means there's a malfunction in the ABS to the ECM communication circuit. That will go away once the repair is made on the pressure sensor. Do not use aftermarket sensors use only a Toyota sensor. Heads up they are not cheap.

Customer: replied 5 months ago.
The trac off and VSC Trac lights are also on will that take care of them is this sentence true or something on it I can change
Expert:  Skyvisions replied 5 months ago.

The track off VSC light are on because of the pressure switch those systems need to know what the master cylinder pressure is doing. The switch is simply a screw-in type switch. It's not difficult to change.