Your Holden Jb engine control system detects a problem, the computer stores the diagnostic trouble
code U0852 in its memory.
To figure out what is wrong with your vehicle you must first extract the U0852 DTC For Holden Jb.
On 1999 and later U0852 Holden Jb engines, the instrument cluster has a built-in self-diagnostic mode that can be accessed by pressing and holding the instrument cluster SELECT/RESET button. Insert the ignition key and turn to the RUN position (but don't crank or start engine). Continue to press and hold the SELECT/RESET button (for 5 seconds) until the word TEST is displayed by the odometer. Release the SELECT/RESET button within three seconds after the word TEST is displayed to begin the self-diagnostic mode.
U0852 Holden Jb DTC Meaning
Network Code - Problem is climate control system, lighting, airbags, etc.
SAE - Generic
Accelerator Pedal Position (APP) Sensor 1 Performance
BBV Sensor Circuit Low Voltage
Kick-Down Switch Failed Short
If your vehicle failed a U0852 Holden Jb test and the U0852 Check Engine Light is NOT on, chances are you have a problem with the OBDII system, a burned out MIL lamp, or a faulty catalytic converter. The converter is essentially an afterburner that cleans up the exhaust after it exits the engine. The OBDII system uses U0852 a ownstream oxygen sensor to monitor the efficiency of the converter, and it should detect a drop in converter efficiency if the converter has been contaminated or is failing (ignition misfiring, leaky exhaust valves, and oil burning can all damage the converter). What you want to look U0852 DTC For Holden Jb: Any conditions that might cause ignition misfire, an overly rich or lean fuel condition, or loss of compression.