P1BD4 Nissan Autech Diagnostic Trouble Code
P1BD4 Nissan Autech code definition:
P1BD4 is a kind of OBD-II Diagnostic P-Powertrain Diagnostic Trouble Code for Nissan Autech.
P1BD4 Nissan Autech is defined as Camshaft Position Sensor A Circuit Low. This means the CMP (camshaft position) sensor circuit on engine bank 1 sends an irregular reading. Any code that causes the vehicle's engine to die while running should be fixed as soon as possible, as it can be dangerous for both the vehicle and the passengers of the vehicle.
Symptoms
Symptoms of a P1BD4 Nissan Autech diagnostic trouble code may include:
- The light may stay on or light intermittently as the DPF regenerates. The engine will be sluggish on acceleration.
- Faulty PCM
- If the DPF is not cleared the ECU will revert to the "Limp Home Mode" until the situation is corrected
- Engine surge
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Possible Causes :
- Rarely - faulty Powertrain Control Module (PCM-programming required after replacement)
- Rough running engine due to misfiring plugs. Many engines have misfire codes to indicate the cylinder effected, such as P0307 for number 7.
- An air leak forward of the DPF will change the sensor readings resulting in the code
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Common Misdiagnoses
- IC Circuit High Voltage Problem
- Control Module Throttle Actuator Position Performance Problem
- Air Conditioning (A/C) Clutch Feedback Circuit High Voltage Problem
- Cruise Vehicle Speed/Set Speed Difference Too High Problem
- PCM Stack Overrun Problem
Repair Processes :
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.
Now, clear the codes and test-drive the vehicle to see if the code is reset.
Process Tips
Diagnostic trouble code P1BD4 Nissan Autech 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 P1BD4 Nissan Autech.
Fortunately, P1BD4 Nissan Autech is a fairly common OBD code, meaning that it applies to all makes and models of vehicles made after 1996.
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