B1903 Engine Error Code
When you check engine light came on code B1903 the reason should be . However your vehicle's manufacturer may have a different definition for the B1903 OBD-II Diagnostic Body (B) Trouble Code. So you should chech it on your car models.
B1903 Code Symptoms
B1903 OBD2 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.
Power Steering Pressure (PSP) Switch Malfunction In Key On, Engine Off Self-Test, this DTC indicates the PSP input to the PCM is high. In Key On, Engine Running Self-Test, this DTC indicates that the PSP input did not change state. Steering wheel must be turned during Key On, Engine Running Self-Test PSP switch/shorting bar damaged SIG RTN circuit open PSP circuit open or shorted to SIGRTN PCM damaged.
B1903 OBD-II Diagnostic Body (B) Trouble Code DescriptionB1903 Air Bag Crash Sensor #1 Ground Circuit Short To Battery so you have to check ODB-II Engine Error Code list.
B1903 Code Review :The reason of B1903 OBD-II Engine Error Code is B1903 Air Bag Crash Sensor #1 Ground Circuit Short To Battery.
B1903 Code Dictionary Meaning:
b - Body Code - Problem is antilock brake system, electronic suspension and steering systems.
1 - MFG - Manufacturer Specific
9 - Transmission
0 - Air Conditioning (A/C) Clutch Feedback Circuit High Voltage
3 - TFP Valve Position Switch-Drive Without Drive Ratio