Applicable vehicles: 1994 and later models (non-hybrid and hybrid).
Condition:
Low battery voltage can contribute to a MIL On condition for P0335 (Crankshaft Position Sensor Circuit) and/or P0340 (Camshaft Position Sensor Circuit) due to inconsistent rotational speed of the engine’s crankshaft.
Recommendations:
Review the vehicle’s freeze-frame data and verify if the battery voltage was below the minimum specification of 11 volts when the DTC was set.
If battery voltage was below the minimum specification, determine the cause and repair accordingly.
If the battery voltage is within specification, refer to the appropriate repair manual procedure for the applicable DTC.
The freeze-frame data example (Fig. 1) indicates battery voltage was only ~6.3 volts when DTC P0335 was set.
Courtesy of Identifix.