B0399 Isuzu Unicab OBD Code

OBD/2 B0399 error code description and symptoms.

Variable Cam Timing Over-advanced (Bank 1) The comprehensive component monitor (CCM) monitors the VCT position for an over-advanced camshaft timing.
The test fails when the camshaft timing exceeds a maximum calibrated value or remains in an advanced position. Cam timing improperly set No oil flow to the VCT piston chamber Low oil pressure VCT solenoid valve stuck closed Camshaft advance mechanism binding (VCT unit) B0399 DTC is a check of the VCT unit.

On some transmissions, such as automated manual transmissions or automatic transmissions with manual mode, the GSP switch lets the TCM know whether or not the driver has selected automatic or manual function. On manual transmissions, the GSP switch informs the TCM which gear the driver is selecting, and may function as a neutral safety switch, depending on system design. The TCM also uses the gate select position switch to monitor transmission operation. For example, if the driver selects manual mode and selects 3rd gear on an automatic transmission, the TCM may monitor speed sensors to detect clutch and brake slippage.

B0399 Isuzu Unicab Error Code Repair Process :

If your pressure control solenoid b electrical 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 B0399 and engine control unit are in charge of monitoring a bunch of different pressure control solenoid b electrical, and if they get a reading that's a little out of whack, up pops the check engine light.

Common Causes of Isuzu Unicab B0399 OBD2 Code

A common cause of code B0399 is the failure of Pressure Control Solenoid B Electrical, but there are several other possible causes as well, such as ;

Camshaft advance mechanism binding (VCT unit)
Engine Control Module (ECM)
Faulty select solenoid
Fuel pressure

B0399 is a kind of Body Trouble Code

Auto body problems aren't always easy to spot. Diagnosing auto body problems sometimes requires a little know-how. In this section you'll find articles dedicated to teaching you how to diagnose auto body problems.

Engine OBD 2 Codes website is a freeware resource center for engine trouble codes.

About Us | Contact | Privacy

B0399 Isuzu Unicab OBD Code

B0399 Isuzu Unicab Error Code Repair Process :

Common Causes of Isuzu Unicab B0399 OBD2 Code

B0399 code for other Isuzu cars