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Old 07-30-2013, 04:28 PM
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TPM receiver/Key fob module

Looking for input re a situation being factual or a coincidence. Recently neither of my key fobs would unlock or relock my doors. Batteries and fuses ok. '05 Jeep GC started after going through the alarm situation. Noticed Tire Pressure Monitoring light "dinged" and started blinking, then went out. Came back on and did same blinking process. Got home, tried key fobs and both worked fine. TPM continued blinking periodic on and off when driving. Went to Discount Tire today and found I had 1 TPM sensor with a dead battery. Replaced sensor ($70), TPM sensor signal reacquired and light now properly goes out after initial engine start. Key fobs working great. Tire store said it was possible the TPM signal loss temporarily affected key fob module because they are connected into the same "control module". Make sense or just a conincidence? Trying to determine if I may have a problem not yet be resolved. Thanks for any input.
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Old 08-05-2013, 04:19 PM
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Re: TPM receiver/Key fob module

read this recently when I was reading about TPMS. A blurb from wkjeeps:

The receiver circuit for the TPM system is integrated into the WCM. The WCM also includes the Remote Keyless Entry (RKE) receiver and the Sentry Key Immobilizer (SKIM) receiver. All three receivers share a number or common components.

so it seems possible...
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