P2696 Diagnostic Trouble Code

P2696 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 P2696 diagnostic trouble code may include:

Lack of power
Faulty O2 Sensor
Poor acceleration
Engine surge

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.
A large vacuum leak would cause a massive amount of un-metered air to enter the intake manifold resulting in an overly lean mixture.

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. Check to make sure they are not burnt or corroded. If in doubt, get some Electrical Contact cleaner at any parts store if cleaning of the terminals is needed. If the engine displays a miss and there wasn't a code, determine which cylinder is misfiring. If the exhaust manifold is visible, spay or pour a small amount of water on each cylinder exhaust port. Water will evaporate immediately on good cylinders and slowly on the missing cylinder. If this can't be accomplished pull the plugs and check the condition.

Process Tips

Diagnostic trouble code P2696 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 P2696.

Fortunately, P2696 is a fairly common OBD code, meaning that it applies to all makes and models of vehicles made after 1996.

P2696 Trouble Code For Specific Cars

P2696 Bentley Exp Battery Saver Power Relay Circuit Failure
P2696 Daihatsu Freeclimber Gear Shift position short to battery
P2696 Citroen Jumper Fuel Pressure Regulator 1 Performance
P2696 Lea-francis 14 System Voltage Out Of Self Test Range
P2696 Oldsmobile Intrique Cylinder Head Overtemperature Protection Active
P2696 Hindustan Motors Trekker Pedal Correlation PDS1 and LPDS High
P2696 Mercedes-benz 14 Air Bag Driver Inflator Circuit Resistance Low on Squib