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| Cannot Clear ODB Codes http://www.lostjeeps.com/forum/phpBB3/viewtopic.php?f=5&t=93153 |
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| Author: | RockyP [ Wed Mar 25, 2026 3:05 pm ] |
| Post subject: | Cannot Clear ODB Codes |
My 2005 Liberty CRD has P0107 Manifold Absolute Pressure Sensor Circuit Low and P0073 Ambient Air Temperature Sensor Circuit A High codes and I cannot clear them even after installing both new sensors. I can't clear them with the ODB reader or by disconnecting the battery. Can anyone help? |
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| Author: | WWDiesel [ Wed Mar 25, 2026 11:26 pm ] |
| Post subject: | Re: Cannot Clear ODB Codes |
P0073 -- Outside air temperature sensor – high input Wiring, short to positive, outside air temperature sensor, ECM P0107 -- Manifold absolute pressure (MAP) sensor/barometric pressure (BARO) sensor – low input Wiring short to ground, MAP sensor, BARO sensor, ECM Check all your wiring harnesses, especially the ones going across the top of the engine and the one going to the front of the radiator stack area. Appears you have a short to ground somewhere??? |
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| Author: | RockyP [ Thu Mar 26, 2026 1:34 pm ] |
| Post subject: | Re: Cannot Clear ODB Codes |
I'll admit that electrical isn't my strong skillset. Admittedly I have not checked every inch of every wire so there could be a short or broken wire someplace. I have done: 5V Reference Checks Ground Integrity Tests Resistance Test Signal Voltage (Sensors Plugged and Unplugged) Continuity Testing At the moment I'm leaning towards doing a load test but again not knowing much about electrical I'm more than happy to take some professional advice. |
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