U1365 Diagnostic Trouble Code

U1365 is a kind of OBD-II Diagnostic U-Network Diagnostic Trouble Code.

It is considered generic because it applies to all makes and models of vehicles, although specific repair steps may be different depending on your car model.

Symptoms

Symptoms of a U1365 diagnostic trouble code may include:

Rich or lean exhaust
Fuel pressure too low
Engine surge
The light may stay on or light intermittently as the DPF regenerates. The engine will be sluggish on acceleration.

Possible Causes :

An air leak forward of the DPF will change the sensor readings resulting in the code
Rusty exhaust systems, cracked exhaust manifolds or damaged or missing gaskets or donuts will cause air leaks.
Faulty IMRC actuator relay (if equipped)

Repair Processes :

Now, clear the codes and test-drive the vehicle to see if the code is reset. Look for missing ground strap or a rusty ground where the fuel tank is grounded to the frame. Check for damage to the wiring harness connector. Replace the oxygen sensor that is downstream from the catalytic converter on the side of the engine that does not contain cylinder #1. Also, if a oxygen sensor code stating "heater circuit malfunction" the sensor has most probably failed.

Process Tips

Diagnostic trouble code U1365 is not difficult to diagnose and repair. Thus, it always pays to have a qualified technician to look after your vehicle should this error code arise.

Diagnosing this code requires the engine to be in good running shape, without unmetered air entering the engine. If other codes that relates to misfiring condition, lean running or air entering the engine is present, then you must first fix those error codes before U1365.

Fortunately, U1365 is a fairly common OBD code, meaning that it applies to all makes and models of vehicles made after 1996.

U1365 Trouble Code For Specific Cars

U1365 Honda Jazz 1 Pump Speed Signal Fault
U1365 Datsun 1000 Heater Blower Relay Circuit Failure
U1365 Fiat 1300 Knock Sensor 2 Circuit Input Intermittent (Bank 2)
U1365 Volkswagen Bora Recirculation Override Circuit Malfunction
U1365 Hillman Sporting PATS Transceiver Module Signal Is Not Received
U1365 Isuzu Bellet SCP (J1850) Invalid or Missing Data for Suspension
U1365 Opel Ampera Damper RR Circuit Failure