U048A Holden Jackaroo OBD Code

OBD/2 U048A error code description and symptoms.

Output Shaft Speed sensor circuit intermittent failure The output shaft speed sensor signal to the PCM is irregular or interrupted.
Harness connector not properly seated Harness intermittently shorted, or open Harness connector damaged OSS sensor damaged, or not installed properly Verify harness and connector integrity Verify OSS sensor proper installation.

As the engine heats up and combustion becomes easier and more complete, the PCM will command the idling control valve to increase the amount of air entering the engine to suit the changing conditions. However, when the load on the engine changes, say, when some electrical consumers or other systems are either turned on or off, the PCM adapts the signal voltage to the idle control valve to ensure that the idling speed remains stable, and at the RPM specified by the manufacturer.

U048A Holden Jackaroo Error Code Repair Process :

If your cooling fan 3 control circuit malfunction 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 U048A and engine control unit are in charge of monitoring a bunch of different cooling fan 3 control circuit malfunction, and if they get a reading that's a little out of whack, up pops the check engine light.

Common Causes of Holden Jackaroo U048A OBD2 Code

A common cause of code U048A is the failure of Cooling Fan 3 Control Circuit Malfunction, but there are several other possible causes as well, such as ;

Camshaft Position Sensor harness is open or shorted
Faulty ignition coil (s)
Faulty TCM or TCM programming
Exhaust gas leaks

U048A 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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U048A Holden Jackaroo OBD Code

U048A Holden Jackaroo Error Code Repair Process :

Common Causes of Holden Jackaroo U048A OBD2 Code

U048A code for other Holden cars