Question

a vehicle with a current p0128 diagnostic trouble code (dtc) is being discussed. technician a states that the p means it is related to the powertrain system. technician b states that the 0 means it is manufacturer specific. who is correct?

a. technician a
b. technician b
c. both technician a and technician b
d. neither technician a nor technician b

Explanation:

Diagnostic Trouble Codes (DTCs) follow a specific format. The first character (here, \(P\)) indicates the system. \(P\) stands for powertrain, so Technician A is correct. The second character: \(0\) means it is a SAE - defined (not manufacturer - specific) code. So Technician B is wrong.

Answer:

a. Technician A