U0401 Holden Jackaroo OBD Code

OBD/2 U0401 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) U0401 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.

U0401 Holden Jackaroo Error Code Repair Process :

The scent may U0401 signal oil or coolant leaking from their normally closed-loop systems, or it may indicate dangerous exhaust gases invading your car's interior. Car and truck exhaust contains toxic gases such U0401, so if the inside of your car knock sensor 1 circuit low input (bank 1 or single sensor) as if you were standing behind your car, get out and get it fixed. Fight the urge to take a little nap first. So sleepy. That's the carbon monoxide talking, friends. At least open a window on your way to the shop.

Common Causes of Holden Jackaroo U0401 OBD2 Code

A common cause of code U0401 is the failure of Knock Sensor 1 Circuit Low Input (Bank 1 or Single Sensor), but there are several other possible causes as well, such as ;

Camshaft advance mechanism binding (VCT unit)
Faulty Camshaft Position Sensor
Damaged camshaft position (CMP) sensor
Variable Camshaft Timing solenoid stuck open

U0401 is a kind of Network Trouble Code

U-code indicates that engine communication errors and shows lost communication with engine parts.U-Codes are fairly straight forward, given all of the articles and technical publications that have been written regarding these problematic codes. In most cases, it just comes down to identifying the module that isn't communicating with the other modules on the CAN bus line for whatever reason.

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

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U0401 Holden Jackaroo OBD Code

U0401 Holden Jackaroo Error Code Repair Process :

Common Causes of Holden Jackaroo U0401 OBD2 Code

U0401 code for other Holden cars