- #2017 CAMARO V6 COOLANT TEMPERATURE SENSOR LOCATION FULL#
- #2017 CAMARO V6 COOLANT TEMPERATURE SENSOR LOCATION CODE#
I shall test the wiring / circuit it if the problem re-occurs. If those test OK, test or replace the coolant temp sensor. Should be near 5V between the 2 terminals. Should be 0 ohms between the terminal of the black wire and the engine block.
Unplug the coolant temp sensor and test with a digital multimeter. hold the start button for up to 10 seconds without touching the brake.everything on the instrument cluster will light up and you should hear the fuel pump run briefly and the throttle click.Ģ. You can check the circuits to the coolant sensor.ġ. AC operation is likely disabled when the ECM does not know what the engine temp is.
#2017 CAMARO V6 COOLANT TEMPERATURE SENSOR LOCATION CODE#
Should be a trouble code for ECT circuit high as the ECT sensor is 1/2 of a voltage divider circuit with the other side connected to +5V through a resistor and the sensor being a temperature sensitive variable resistor(thermistor) connected to ground. Open circuit/disconnected engine coolant sensor typically reads something like -40* at the ECM, and the ECM tells the instrument cluster what to display on the gauge. This can be triggered by wiring, sensors or even inductance / electromagnetic disturbances related to the wiring going to the ECM from the OBD port.Ĭould you also see apart from the Fan behavior, the Temp gauge and AC operation? I was told tjhat such phenomena is associated with "safe mode".
#2017 CAMARO V6 COOLANT TEMPERATURE SENSOR LOCATION FULL#
I encountered a similar issue (fan on full speed), however, in my case the Temp gauge remained pegged at low without any movement (despite engine being at normal Temp range) and AC compressor would not kick in. In these cases run the vehicle until it reaches an appropriate condition for the PCM to command the Cooling Fans On. Using the scan tool to operate the Cooling Fan will not set certain DTCs. In order to set certain DTCs the PCM must command the Cooling Fan system On. A delay or ramp up of approximately 12 seconds may occur before the cooling fan activates or changes speed when being commanded with a scan tool. If this condition is suspected, refer to the temperature versus resistance tables in the appropriate engine controls subsection. If the ECM is commanding the cooling fan ON for no apparent reason and without any component or system DTCs set, the IAT or ECT sensor may be skewed.
Certain resistance conditions with IAT or ECT sensors may cause unwarranted cooling fan activation. The fan will automatically shut OFF after 300 seconds. If the coolant temperature drops below 107☌ (225☏) and the A/C pressure drops below 1800 kPa (261 psi) the fan will shut OFF.
After the vehicle is shut OFF if the engine coolant temperature at key-off is greater than 113☌ (235☏) or the A/C pressure is greater than 2300 kPa (334 psi) the cooling fan duty cycle is set to 55%, low speed. At transmission oil temperatures above approximately 112☌ (234☏) the cooling fan duty cycle will be commanded to high speed. Cooling fan duty cycle starts when A/C pressure reaches approximately 975 kPa (141 psi) and reaches high speed at A/C pressures above 2100 kPa (305 psi). Cooling fan duty cycle starts when engine coolant temperature reaches approximately 101☌ (214☏) and reaches high speed at temperatures above 109☌ (228☏). The ECM commands the cooling fan ON under the following conditions: When multiple cooling fan speed requests are received the ECM uses the highest cooling fan speed of all the requests. Here are some excerpts from the service manual.Ĭooling fan speed is effected by many different conditions and can be adjusted from 20% to 99% duty cycle (PWM), 90% is considered high speed fan. Fixed that and fan operation was back to normal. I found that a pin for the IAT sensor had backed out of one of the connectors in the jumper harness. Fired up the engine and noticed the fan on high. I was recently doing some testing utilizing a jumper harness between the Multifunction Sensor(MAF, IAT, Baro, Humidity) and its factory connector. So both circuits should be checked if you experience this issue. In my case, the cause was IAT sensor related. One of the other threads involved a cut wire to the ECT sensor. Noticed a few threads on this so I thought I'd add my experience to the list.
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