Applicable vehicles: 1994 and later models (non-hybrid and hybrid).
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.
• 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.