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Check B1687 Fault Code

When you check engine light came on code B1687 the reason should be . However your vehicle's manufacturer may have a different definition for the B1687 OBD-II Diagnostic Body (B) Trouble Code. So you should chech it on our car models.

B1687 Code Reason

B1687 DTC specifically refers to the camshaft (cam) timing. In this case, if the cam timing is over-retarded, the engine light will be illluminated and the code will be set.

B1687 Possible Fix :

If the culprit is a poor fuel pressure regulator, then I suggest looking around for a replacement part and taking your car to your local mechanic for installation. If you're a skilled mechanic, then you should be able to install a new fuel pressure regulator easily. But if you're just starting out, it's always best to have the professionals take care of this job. Believe me, the fuel pressure regulator is not an easy part to install.

B1687 OBD-II Diagnostic Body (B) Trouble Code Description

B1687 Lamp Dome Input Circuit Short To Battery so you have to check ODB-II Fault Code Check list.

Reason For B1687 Code

The reason of B1687 OBD-II Fault Code Check is B1687 Lamp Dome Input Circuit Short To Battery.

B1687 Solution:

Power Steering Pressure (PSP) Switch Signal Malfunction The PCM counts the number of times vehicle speed transitions from 0 to a calibratable speed. After a calibratable number of speed transitions the PCM expects that the PSP input should have changed. This DTC is set if the transition is not detected. Vehicle towed with engine running Power steering hydraulic concern was repaired but DTC was not erased PSP switch/shorting bar damaged SIG RTN circuit open PSP circuit open or shorted to SIGRTN PCM damaged Check, if possible, if vehicle was towed or power steering service was performed. Observe PSP V PID while checking wires for intermittents.

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What does a diagnostic reading B1687 mean ?
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