Code 14?

[tucsoncamaro]

I went to a brake place on Saturday, and they rn one of the computer diagnostic checks. They had three codes show up. They were able to clear three codes, but a code 14 kept appearing. The did not really know what was causing the problem. The only side effect is the Brake and ABS light has been on for a loing time know. It will help me out a lot if you could tell me what I can buy to fix this. They said it would take a while, which mean they wanted to pile up a bill so I left. Something with the relay Box?

[L32Projekt]

Code 14 is an Engine Coolant Temperature (ECT) Sensor Circuit (High temperature indicated).

The ECT is a thermistor which varies the signal voltage at the ECM. The ECM applies 5 volts to sensor at CKT 410. The sensor's resistance is inversely proportional to the temperature it is sensing.

As the engine warms, the sensor resistance becomes less, and the voltage drops. At normal engine operating temperature, the voltage will measure 1.5 to 2 volts at the ECM terminal at "A31".

Engine coolant temperature is one of the inputs to control:
- Fuel delivery
- Ignition control (IC)
- Idle air control (IAC)
- Torque converter clutch
- EVAP canister purge
- Exhaust gas recirculation (EGR)
- Cooling fan operation

DTC will set if:
- signal voltage indicates engine coolant temperature is greater than 135*C (270*F)
- engine running longer than 20 seconds
This test will determine if CKT 410 is shorted to ground which will cause the conditions for DTC 14

Check harness routing for a potential short to ground in CKT 410. Circuit is routed from the ECM to the 10-way INJ/ECM connector, and then to the engine coolant temperature (ECT) sensor.

Tech1 scan tool displays the engine coolant temperature in degrees centigrade. After the engine is started the temperature should rise steadily to about 90*C (194*F) then stabilize when the thermostat opens.

Verify that engine is not overheating and has not been subjected to conditions which could create an overheating condition (i.e. overload, trailer towing, hilly terrain, heavy stop and go traffic, etc.). A shifted sensor (mis-scaled) is one which reports faulty temperature readings in bad resistance values and can produce poor driveability complaints.

(Quoted from the GM service manual for the 3.4L Camaro)

So, the temperatures are heating up, how's your cooling system?

[tucsoncamaro]

The temp and colling is perfect. It is the brake problem they were trying to fix. That is the only code that they said was causing it? Thanx for the advice, but I dont understand why th code 14 would come up if I had a brake problem? Dont know

[L32Projekt]

Well, the dealer service manual for the 3.4L camaros was used, and that's what the code 14 is, no idea unless you can give more background on the car....