C3912 Jaguar F-type OBD Code

OBD/2 C3912 error code description and symptoms.

Low Speed Fuel Pump Primary Circuit Malfunction The PCM monitors the low speed fuel pump (LFP) primary circuit output from the PCM.
The test fails if: When the LFP circuit is commanded on (grounded), excessive current draw is detected on the LFP circuit; or when the LFP circuit is commanded off, voltage is not detected on the LFP circuit (the PCM expects to detect VPWR voltage coming through the low speed fuel pump relay coil to the LFP circuit). Open or shorted low fuel pump (LFP) circuit Open VPWR to low speed fuel pump relay Damaged low speed fuel pump relay Damaged PCM An open circuit or short to ground can only be detected with the low speed fuel pump.

As long as the throttle plate remains closed, the idling speed and quality is controlled by the PCM via the idle control valve, and as can be seen from the above it should be clear that idle control on a gasoline engine is a complex affair. For instance, if the engine is started in sub-zero temperatures, the PCM will command the idling control valve to allow less air to enter the engine to enrich the air/fuel mixture to create a condition which is roughly analogous to how chokes worked on carburetted engines to control idling in cold weather.

C3912 Jaguar F-type Error Code Repair Process :

If your front sounder circuit short to vbatt check engine light is illuminated, it's best to take it in for diagnostic testing, which can feel like a hassle. Because while the lights vary in appearance from vehicle to vehicle, all have the same basic meaning: There's a problem with the car's emissions system. The on-board diagnostics system C3912 and engine control unit are in charge of monitoring a bunch of different front sounder circuit short to vbatt, and if they get a reading that's a little out of whack, up pops the check engine light.

Difficulty Level (Easy)

Repair Time (20 Min.)

Cost Prediction : $ 40-75

Common Causes of Jaguar F-type C3912 OBD2 Code

A common cause of code C3912 is the failure of Front Sounder Circuit Short to Vbatt, but there are several other possible causes as well, such as ;

• EVAP canister or fuel tank leaks
• Faulty Intake Valve Timing Control Solenoid Valve
• Incorrect fuel filler cap used
• Engine Control Module (ECM)

C3912 is a kind of Chassis Trouble Code Diagnosing chassis noises can be one of the most frustrating problems technicians face. Fortunately, manufacturers have engineered noise, vibration and harshness (NVH) diagnostic techniques and equipment to find the source of the noise.

C3912 code for other Jaguar cars

You can view according C3912 DTC for your car model. We selected several models to see obd2 solutions click and view it.

• C3912 Jaguar 220
• C3912 Jaguar 240
• C3912 Jaguar 420
• C3912 Jaguar Concept
• C3912 Jaguar C-type
• C3912 Jaguar D-type
• C3912 Jaguar E-pace
• C3912 Jaguar E-type
• C3912 Jaguar F-pace
• C3912 Jaguar Kensington
• C3912 Jaguar Mark
• C3912 Jaguar R
• C3912 Jaguar Sovereign
• C3912 Jaguar Ss
• C3912 Jaguar S-type
• C3912 Jaguar Super
• C3912 Jaguar Vanden
• C3912 Jaguar X-300
• C3912 Jaguar X-400
• C3912 Jaguar Xe
• C3912 Jaguar Xf
• C3912 Jaguar Xj
• C3912 Jaguar Xj-12
• C3912 Jaguar Xj-13
• C3912 Jaguar Xj-220
• C3912 Jaguar Xj6
• C3912 Jaguar Xj-6
• C3912 Jaguar Xj-7
• C3912 Jaguar Xj8
• C3912 Jaguar Xj-8
• C3912 Jaguar Xj-8l
• C3912 Jaguar Xjr
• C3912 Jaguar Xjs
• C3912 Jaguar Xj-s
• C3912 Jaguar Xk
• C3912 Jaguar Xk8
• C3912 Jaguar Xk-8
• C3912 Jaguar Xka
• C3912 Jaguar Xkr
• C3912 Jaguar Xk-ss
• C3912 Jaguar X-type

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