How does a PCM have to be retested?
The PCM has to be hooked up to a sophisticated simulator that exercises all of the computer’s input and output circuits to make sure it works correctly – which means the PCM has to go back to the supplier, be retested, and if no fault is found, repackaged and put back into stock.
When is it time to replace your PCM?
If your car is running well and you’re not a racing enthusiast, there’s no reason to replace your PCM. On the other hand, PCM problems never get better. They only get worse, and can cause your car to shut down in the middle of driving, which is a major safety issue in addition to being inconvenient.
What should I do if my PCM is not in stock?
If a particular PCM is not in stock or is unavailable, you can often send the old PCM to a remanufacturer for repair. Turn around time is typically a few days and the cost is the same as selling him an exchange unit from stock (except there’s no core charge). Some PCMs, though, may not be repairable.
Can a broken PCM be installed on a different car?
Here’s our complete guide to diagnosing a broken PCM, choosing a replacement, and getting one installed. Every model of vehicle has different needs. Even different versions of the same model can have different transmission ratios, meaning that it’s extremely important to make sure your PCM replacement is right for your vehicle.
The PCM has to be hooked up to a sophisticated simulator that exercises all of the computer’s input and output circuits to make sure it works correctly – which means the PCM has to go back to the supplier, be retested, and if no fault is found, repackaged and put back into stock.
If a particular PCM is not in stock or is unavailable, you can often send the old PCM to a remanufacturer for repair. Turn around time is typically a few days and the cost is the same as selling him an exchange unit from stock (except there’s no core charge). Some PCMs, though, may not be repairable.
If your car is running well and you’re not a racing enthusiast, there’s no reason to replace your PCM. On the other hand, PCM problems never get better. They only get worse, and can cause your car to shut down in the middle of driving, which is a major safety issue in addition to being inconvenient.
Here’s our complete guide to diagnosing a broken PCM, choosing a replacement, and getting one installed. Every model of vehicle has different needs. Even different versions of the same model can have different transmission ratios, meaning that it’s extremely important to make sure your PCM replacement is right for your vehicle.