CARWATCH
P0377 Error on Chevrolet
What it means and how to fix it
🚨 Fault Description (P0377)
When your Chevrolet dashboard warns of a fault and the OBD reader throws the P0377 error, the engine control module indicates this breakdown:
"Timing Reference High Resolution Signal B Too Many Pulses"
Keep in mind that the severity and repairs for this code depend entirely on the specifications of your Chevrolet, whether diesel, petrol, or hybrid.
Other frequent faults detected in Chevrolet:
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To clear the engine light and read the P0377 code from your phone, you need an OBD2 adapter compatible with the Chevrolet ECU.
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