P115E Diagnostic Trouble Code

P115E is a kind of OBD-II Diagnostic P-Powertrain 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 P115E diagnostic trouble code may include:

Engine surge
Blown fuse (if applicable)
Lack of power
Reduction in engine performance, especially at low RPM levels

Possible Causes :

A faulty oxygen sensor. This will set a code in itself, however, a faulty oxygen sensor does not automatically condemn the sensor. The code just means that the sensor signal was not within specifications. An air leak or any of the above will cause an erroneous signal. There is a multitude of O2 codes relating to O2 performance which gives a clue to the problematic area.
Some aftermarket accessories and performance modifications
Rarely - faulty Powertrain Control Module (PCM-programming required after replacement)

Repair Processes :

With the valve disconnected, the red voltmeter lead should be attached to the IMRC valve power wire and the black voltmeter lead connected to ground. If the scan tool has that capability, and the scan tool can operate the IMRC valves, then the problem is either resolved and a simple code clearing is all that's left or a new PCM would be called for. 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 P115E 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 P115E.

Fortunately, P115E is a fairly common OBD code, meaning that it applies to all makes and models of vehicles made after 1996.

P115E Trouble Code For Specific Cars

P115E Daihatsu Gran Gear Shift Reverse Actuator Circuit / Open [rearward motion, even gears, 2,4,6]
P115E Datsun 1000 Heater Blower Relay Circuit Failure
P115E Zil 117 SCP HBCC Failed To Initialize
P115E Seat Ateca Injector Circuit Open / Shorted - Cylinder #2
P115E Porsche 356 Front Lateral Accelerometer Circuit Failure
P115E Tornado Tempest Motor # 2 Input Circuit Short to Vbat
P115E Jeep Mb Seat Driver Rearward Switch Circuit Short To Ground