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Journal for dave112 Journal for dave112
Nov
1
Happy
How to Optimize Detroit EPA07 GHG14 Egnine Idle THermostat Does Not Power Up
This instruction show you guide on how to optimize Detroit EPA07 GHG14 Engine idle thermostat does not power up.


Related Contents:

DDDL 8.18 Detroit Detroit Diesel Diagnostic Link
NEXIQ USB Link 2


Check as follows:
1 Disconnect the Optimized Idle Thermostat connector.

2 Inspect the sensor harness for bent, spread, or corroded pins.
2a If damage is found, repair as necessary.
2b If no damage is found, Go to step 3.

3Turn the key to the on position, engine off.

4Measure the voltage between pin 5 of the Optimized Idle Thermostat harness side connector, and ground. Is the voltage within 1.5 volts of battery voltage.

4a Yes, Go to step 5.
4b No, repair the circuit short between pin 5 of the Optimized Idle Thermostat connector and ignition feed.


5.Measure the resistance between pin 6 of Optimized Idle Thermostat harness side connector and ground. Is the resistance greater than 5 ohms?

5a Yes, repair the open circuit between pin 6 of Optimized Idle Thermostat connector and vehicle ground.
5b No, replace the Optimized Idle Thermostat.

2023 Detroit Diesel Diagnostic Link DDDL 8.18 8.09 Free Download
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