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Check U1103 Fault Code

When you check engine light came on code U1103 the reason should be Engine Light ON (or Service Engine Soon Warning Light). However your vehicle's manufacturer may have a different definition for the U1103 OBD-II Diagnostic Network (U) Trouble Code. So you should chech it on our car models.

U1103 Code Reason

U1103 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.

U1103 Possible Fix :

When you spot grave damage, replace, replace, replace! Otherwise, if it's just a matter of grime buildup or dirty plugs, simply clean these components. If your wires are tangled, prevent arcing and damage caused by friction by using a spark plug wire loom or divider on your car. It basically organizes your wires and offer better insulation. In short, it keeps your wires organized, making it easier to access your spark plug wires for inspection and/or installation.

U1103 OBD-II Diagnostic Network (U) Trouble Code Description

U1103 SCP (J1850) Invalid or Missing Data for Primary Id so you have to check ODB-II Fault Code Check list.

Reason For U1103 Code

The reason of U1103 OBD-II Fault Code Check is U1103 SCP (J1850) Invalid or Missing Data for Primary Id.

U1103 Solution:

Power Steering Pressure (PSP) Switch Signal Malfunction The PCM counts the number of times vehicle speed transitions from 0 to a calibratable speed. After a calibratable number of speed transitions the PCM expects that the PSP input should have changed. This DTC is set if the transition is not detected. Vehicle towed with engine running Power steering hydraulic concern was repaired but DTC was not erased PSP switch/shorting bar damaged SIG RTN circuit open PSP circuit open or shorted to SIGRTN PCM damaged Check, if possible, if vehicle was towed or power steering service was performed. Observe PSP V PID while checking wires for intermittents.

What does fault code U1103 mean ?
What does a diagnostic reading U1103 mean ?
How to fix OBD2 Code U1103 ?
What do we know about U1103 code ?

How to Clear U1103 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.