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Check C1203 Fault Code

When you check engine light came on code C1203 the reason should be . However your vehicle's manufacturer may have a different definition for the C1203 OBD-II Diagnostic Chassis (C) Trouble Code. So you should chech it on our car models.

C1203 Code Reason

C1203 DTC specifically refers to the camshaft (cam) timing. In this case, if the cam timing is over-retarded, the engine light will be illluminated and the code will be set.

C1203 Possible Fix :

Probably the biggest result of injector failure is due to the injectors having excessive return flow or back leakage. This is due to worn parts which allow excessive fuel to go through the diesel injector and to return back to the tank or fuel system. This causes a drop in rail pressure which results in hard starting or not starting at all.

C1203 OBD-II Diagnostic Chassis (C) Trouble Code Description

C1203 ABS Outlet Valve Coil Rear Circuit Open so you have to check ODB-II Fault Code Check list.

Reason For C1203 Code

The reason of C1203 OBD-II Fault Code Check is C1203 ABS Outlet Valve Coil Rear Circuit Open.

C1203 Solution:

Excessive air inflow can be caused by a vacuum leak, a dirty sensor or, an exhaust gas recirculation valve not closing properly. If the problem is not enough fuel, the culprit may be dirty injectors or fuel filters, a weak fuel pump or a leaky fuel pressure regulator. The lean fuel mix error may be accompanied by rough idling, engine misfires, hesitation during acceleration and overall poor engine performance.

What does fault code C1203 mean ?
What does a diagnostic reading C1203 mean ?
How to fix OBD2 Code C1203 ?
What do we know about C1203 code ?

How to Clear C1203 Trouble Code

An OBD 2 scanner is the best and safest way to erase a DTC from your car's system. This scanner communicates with the car's computer and instructs the computer to erase the code. It does not change or tweak the settings from inside the car or its systems.