U1569 Diagnostic Trouble Code

U1569 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 U1569 diagnostic trouble code may include:

Excessive exhaust leak
Hesitation upon acceleration
Malfunction Indicator Lamp (MIL) illuminated
Rich or lean exhaust

Possible Causes :

Faulty IMRC actuator relay (if equipped)
A large air leak at or near the number one oxygen sensor would also cause a lean mixture.
Low fuel pressure caused by a clogged filter, failing fuel pump, failed fuel pressure regulator or clogged or leaking injectors.

Repair Processes :

Once located, visually inspect the connectors and wiring. Look for rubbing, scraping, bare wires, worn spots or melted plastic connectors. 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. Look at the plug wires to make sure they are not burnt or laying on the exhaust.

Process Tips

Diagnostic trouble code U1569 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 U1569.

Fortunately, U1569 is a fairly common OBD code, meaning that it applies to all makes and models of vehicles made after 1996.

U1569 Trouble Code For Specific Cars

U1569 Syrena Fso Mirror Driver/Passenger Switch Circuit Short To Battery
U1569 Tvr Tuscan Power Steering Pressure Sensor Circuit Low Input
U1569 Toyota Prius 3 Park Brake Actuator Assembly Switch Circuit Failure
U1569 Dkw Munga IDM_EN Circuit Failure
U1569 Saab 96 Ignition Tach Circuit Failure
U1569 Vauxhall Meriva B Pressure Control Solenoid B Control Circuit Range/Performance
U1569 Overland 40 Double Lock Feedback Failure