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Ask Chris (aka - Moose) Your Own Question
Chris (aka - Moose)
Chris (aka - Moose), Technician
Category: Heavy Equipment
Satisfied Customers: 112
Experience:  16 years of experience
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I am troubleshooting caterpillar C32 marine generator Sr.

Customer Question

Good Day, I am troubleshooting caterpillar C32 marine generator Sr. Nos. RNX00104, Arrangement nos.(###) ###-#### MPD panel is showing Active Code as follows--- 91-08 Throttle position Sensor: Abnormal frequency, pulse width, or period. Trouble shooting carried out as follows:
- Trimmer potentiometer renewed,
- Speed convertor/ Caterpillar Remote speed control renewed.
- Harness cleaned and boxed back.
Status quo is same. Request kindly advise at the earliest.
Awaiting yours.
Submitted: 1 year ago.
Category: Heavy Equipment
Expert:  Bradley Martin replied 1 year ago.

Do you know the voltage at the sensor?

Customer: replied 1 year ago.
Please advise how to check the sensor. This marine generator application and hence cannot understand how to check. Please advise exactly how to check the voltages along with expected values. Please find the attach which we have changed with new one.
Awaiting yours
Customer: replied 1 year ago.
Please find the attached electrical diagram which can be enlarged.
Expert:  Bradley Martin replied 1 year ago.

Check for battery voltage at terminal B on the speed sensor connector?

Expert:  Bradley Martin replied 1 year ago.

I meant throttle position sensor

Customer: replied 1 year ago.
24volts.
Expert:  Bradley Martin replied 1 year ago.

Here are a few checks with diagrams