Isuzu Ascender P1242 Code:

OBD-II Diagnostic Powertrain (P) Trouble Code

Trouble In Isuzu Ascender P1242 Possible Cause

The cause of Isuzu Ascender P1242 code is about if recent transmission repairs have been performed, suspect that the range sensor was not readjusted properly (if so equipped). Sensor retaining bolts should always be installed using thread locking compound to ensure proper torque longevity.

Common Symptoms For Isuzu Ascender P1242

  1. Obtain a hydraulic pressure diagram pertaining to the vehicle in question and thread the end of the gauge into the appropriate opening on the transmission housing to record pump pressure
  2. Test the wiring and connectors at the fuel shutoff valve to make sure that voltage and ground readings are near battery voltage
  3. Several tools will be instrumental in successfully diagnosing this code
  4. The sensor is of the electro magnetic design and uses a reluctor ring (or a specialized set of splines) on the input shaft as reference points

Similar Problems

Fuel And Air Metering
IC Circuit High Voltage
Cruise Control System - Vehicle Accel Too High

Isuzu Ascender P1242 Troubleshooting

Having one of the signs of a bad gasket is usually not enough to prove a failure of a gasket, but multiple symptoms are most likely the result of gasket failure. It is advisable to have the vehicle driven as little as possible whenever the symptoms occur. Depending on the symptoms, either have the gasket replaced or repaired.
The cost of replacing a gasket usually varies from one mechanic to the other. Replacing a gasket is quite expensive in modern engines due to their location and the amount of labor that is required to replace them. Isuzu Ascender P1242 OBD2 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.

How to turn off Isuzu Ascender P1242 check engine light ?

There are two ways to turn off the check engine light:

A repair technician can do so once repairs have been made.
The OBD II can automatically turn it off when it fails to detect the problem after several diagnostic cycles.

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