P0335 and/or P0340 Lexus MIL On

P0335 and/or P0340L: Lexus MIL On Due To Low Battery Voltage

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.

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