U1398 Trouble Code

View U1398 obd/2 error code description and symptoms. U1398 engine photo

Brake Switch Circuit Input Malfunction Indicates PCM did not receive a brake pedal position (BPP) input. Open or short in BPP circuit Open or short in stoplamp circuits Damaged PCM Malfunction in module(s) connected to BPP circuit. (Rear Electronic Module [REM] Windstar and LS6/LS8 or Lighting Control Module (LCM) Continental and Town Car. Damaged brake switch Misadjusted brake switch Check for proper function of stoplamps.

At this point we are assuming that the fuses and relays are good. You will need to locate the PCM/TCM and the power input signal circuit using your vehicle information source. Unplug the connector from the PCM/TCM, place the ignition switch in the ON position, and probe the appropriate circuit with the positive test lead of the DVOM.

U1398 Error Code Repair Process :

When you turn on the ignition, the Service Engine Soon or Check Engine U1398 light should flash briefly, indicating that the OBD system is ready to scan your vehicle for any malfunctions. After this brief flash, the light should stay off while you drive as long as no problems are detected. If door ajar rr circuit failure so, you'll be glad to know that your vehicle is equipped with an early warning system that could save you time, money, and fuel in addition to helping protect the door ajar rr circuit failure.

U1398 is a kind of Network Trouble Code

U-code indicates that engine communication errors and shows lost communication with engine parts.U-Codes are fairly straight forward, given all of the articles and technical publications that have been written regarding these problematic codes. In most cases, it just comes down to identifying the module that isn't communicating with the other modules on the CAN bus line for whatever reason.

Common Causes of U1398

A common cause of code U1398 is the failure of Door Ajar RR Circuit Failure, but there are several other possible causes as well, such as ;

Failures of clutch motion/travel sensors.
Faulty starter motor
Incorrect fuel filler cap used
Oil flow restriction in the oil passages or the VCT valve body

U1398 code for all cars

You can view according U1398 DTC for your car model. We selected several models to see obd2 solutions click and view it.

+U1398 Griffith Gt

+U1398 Holden Eh

+U1398 Zundapp Janus

+U1398 Chrysler Prowler

+U1398 Mazda Az

Engine OBD 2 Codes website is a freeware resource center for engine trouble codes.

About Us | Contact | Privacy