here is the 99 shop manual words (but some times only Pendings work here, )
Quote:Handling ESD Sensitive Parts Notice
Circuit Description
The camshaft position (CMP) sensor is located at the rear of the cylinder head and consists of a signal generator (a hall element and magnet) and a signal rotor. As the signal rotor turns, a magnetic flux from the magnet is applied to the hall element repeatedly. The hall element generates a voltage that is proportional to the magnetic flux. The PCM uses this pulse/revolution signal in order to determine the engine speed and the position of each cylinder. The PCM uses this signal to control the fuel injectors and the ignition timing.
Condition for Running the DTC
The engine is being cranked.
The engine is running.
Conditions for Setting the DTC
No signal from the CMP sensor for 3 seconds with the PCM receiving an engine start signal.
Action Taken When the DTC Sets
The malfunction indicator lamp (MIL) will illuminate.
The PCM will record operating conditions at the time the diagnostic fails.
This information will be stored in the Freeze Frame buffer.
Conditions for Clearing the MIL/DTC
The MIL will turn OFF after three consecutive drive cycles without a fault present.
A DTC will clear after 40 consecutive warm-up cycles without a fault.
The DTCs can be cleared by using a scan tool or by disconnecting the PCM battery feed.
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