P0118 ERROR CODE (Engine Coolant Temperature Sensor Circuit High) Suzuki

  • In this post we will learn today here P0118 ERROR CODE (Engine Coolant Temperature Sensor Circuit High) Suzuki

  • what is the p0118 error code in your vehicle suzuki

  • how to resolve this issue p0118 in suzuki car or any

  • what is the symptoms of p0118 in suzuki                                                                                                                                                                                                                                          At first we know about p0118 is an error code in our vehicle is mean Engine Coolant Temperature Sensor Circuit High 

  • What does this mean?

    OBD2 Code P0118 Suzuki definition:
    The engine coolant temperature (ECT) sensor is a thermistor screwed into a coolant passage in the cylinder head. Sensor resistance is high when coolant temperature is low and resistance drops when coolant temperature increases. The powertrain control module (PCM) provides a 5 volt reference and a ground to the sensor. The PCM monitors voltage drop to determine coolant temperature. If the ECT reads less than freezing temp. when engine has been running for more than a few minutes, the PCM determines a circuit fault and sets this code. Or if the PCM determines the sensor resistance is out of specs, this code is set.

  • Symptoms

    Symptoms of a P0118 Very poor fuel economy starting issue when car in could start condition Vehicle may start, but run very poorly, blowing black smoke, running very rough and misfiring 

  • Possible Solutions

    At first, if you have scan tool, check the reading of the coolant sensor. test by wiggling the connector and harness to the sensor while watching the reading on the scan tool. Watch for any drop-outs. Drop-outs would indicate a bad connection. If the scan tool reads an illogical temperature, check the resistance of the temperature sensor. If it is out of specs, replace it. If it is in specifications, unplug the sensor and, using a fused jumper wire, jumper the two terminals of the connector together. The temperature reading should now be maxed out to above 250 degrees F. If not, there is likely a problem with the ground circuit or voltage supply. Check for 5 volts reference voltage at the connector. Also check for ground presence at the connector. If you do not have 5V ref. and/or ground continuity, check for these back at the PCM connector. If you have these at the PCM connector, then repair open or short between the PCM and the sensor. If you do not, remove the offending wire from the PCM and then check for proper voltage at the PCM pin. If it’s present now, repair short on the circuit. If it isn’t present after removing the wire and checking the pin, replace PCM : Usually, P0118  is indicative of a bad temperature sensor, but doesn’t rule out these other possibilities. If you’re unsure of how to diagnose a PCM, do not attempt.

  • Related Codes

    P0115 – P0116 – P0117 – P0118 – P0119 – P0125 – P0128.

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