P1493 Battery Temp. Sensor, Low Voltage
The battery temp sensor is built in to the PCM (ECU). The input from this sensor is used to adjust the alternator charging rate based upon the ambient tempature around the battery. The P1493 code is set when the sensor voltage is less than 0.3 V for 3 seconds. The only way to fix this code is to replace the PCM since the sensor is part of it internally.
P1493 Battery Temp. Sensor, Low Voltage
P0117 ECT Sensor, Low voltage
Make sure the engine is reaching operating temperature, U may have a problem w/the thermostat, this is code P0117
Have the battery and the Alternator tested for possiable charging system issue, this is code P1493
721 views
Usually answered in minutes!
×