The P1804 diagnostic trouble code (DTC) refers to a transmission 4-wheel drive high indicator circuit failure. This code typically indicates a problem with the circuit that controls the 4-wheel drive high indicator light on the vehicle's dashboard.

2019年9月20日 · Transmission 4-Wheel Drive High Indicator Circuit Failure is the generic description for the P1804 Ford code, but the manufacturer may have a different description for your model and year vehicle. Currently, we have no …

The automobile fault code P1804 can be caused by a faulty Transmission 4-Wheel Drive High Indicator, an open or shorted harness, or a poor electrical connection in the indicator circuit. Do you know you can clear most fault codes —but some could mean serious danger?

Turn the 4×4 switch on and nothing happens, no lights, nothing. The motor on t-case never moves. I removed the motor and manually engaged 4×4 and it works fine. I can take a test light and get no power at the motor or the dash mounted switch.

2019年9月20日 · Repair Information for P1804 Ford code. Learn what Transmission 4-Wheel Drive High Indicator Circuit Failure means, location and how to repair?

¿Qué significa el código DTC P1804? El código de falla P1804 se refiere a un indicador de transmisión alta en las 4 ruedas - circuito defectuoso. Este código de falla se utiliza en los vehículos equipados con tracción en las cuatro ruedas para indicar un problema en el circuito que controla el indicador de transmisión alta.

The reason of P1804 OBD-II Fault Code Check is P1804 Transmission 4-Wheel Drive High Indicator Circuit Failure. P1804 Solution: Excessive air inflow can be caused by a vacuum leak, a dirty sensor or, an exhaust gas recirculation valve not closing properly.

You can find information about the P1804 fault code on this page. "Transmission 4-Wheel Drive High Indicator Circuit Failure" Looking To Fix This Yourself? By using a workshop/repair manual you could diagnose and even fix this issue yourself.

DTC P1804, sometimes indicated as P180400 is an OBD diagnostic trouble code indicating a manufacturer-specific fault with the vehicle powertrain (i.e. engine and gearbox). This code identifies an error with the causing hold switch circuit malfunction. Consumer experiences and complaints for P1804 OBD-II error.

2018年3月5日 · I simply Googled what Jabonee reported in my thread for my check engine light "P1804 RAIL PRESSURE LIMITER OPEN" and this was the 4th link down with a full successful match. I'm in shock.... This is legitimately a factory service technician manual with …