Where is the failure diagnostic code stored on a caterpillar?

Where is the failure diagnostic code stored on a caterpillar?

At that time a failure diagnostic code will be entered and stored in the ECM memory. The failure code can be retrieved by 1) using the Caterpillar Electronic Control Service tool, or 2) using the “Check Engine” light if the bus is equipped with cruise con- trol.

Where is the PWM located on a Caterpillar 3126 HEUI engine?

Instead of a direct rod/cable from the accelerator pedal to the fuel pump, the ECM receives a Pulse Width Modulation (PWM) from a throttle position sensor which incor- porates a potentiometer. The sensor is located on the back side of the accelerator pedal.

How can I test my caterpillar ECM wiring?

ECMs are pretty tough. Problems like yours are wiring related 99.99% of the time. Another test you can do is to load test those power and ground wires. With the OEM connector disconnected at the ECM, jump power one at a time from pin 4 and 6, through a headlight bulb, then ground the headlight to make it come it on.

Is there a problem with my Cat 3126 engine?

Thanks Ed 3126 Cat engine have a 3126 cat engine that will start but only run for a few seconds then check engine light comes on and it dies it is in a 99 gmc 6500 topkick have replaced the heui pump, speed control sensor, cam sensor, fuel filters, oil filters, need to get running asap costing me money

When to replace cam sensor on Cat 3126?

Cat 3126. Discussion in ‘ Trucks ‘ started by John White, May 22, 2014 . Just replace cam sensor on cat 3126. I don’t have a scanner to remove fault code.

Can a FMI 13 code affect engine performance?

An FMI 13 Code may affect the performance of your engine, but without knowing if it is there or not it’s impossible to say for certain. The check engine light never did come on even with the bad sensor. Just had a code 34 when I scanned it with onboard scanner.

ECMs are pretty tough. Problems like yours are wiring related 99.99% of the time. Another test you can do is to load test those power and ground wires. With the OEM connector disconnected at the ECM, jump power one at a time from pin 4 and 6, through a headlight bulb, then ground the headlight to make it come it on.