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Old 03-26-2011, 03:09 PM
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MnTom MnTom is offline
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I was under the impression that there is only a temperature sensor under the left battery. Either way, like Stodg said, check grounds and also check any plug or connection that you can find for the temp sensor.
Anthony, the PCM uses the temperature of the battery to determine how hard to charge the batteries since warm batteries require less power to keep them charged.
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Old 03-26-2011, 04:37 PM
Anthony C Anthony C is offline
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I can do that. I have what's called copper shield on the ground terminals, I didn't use it on the positive side yet. But I can surely check to be sure my connections are good, usually poor connections start the engine. But do not charge the batteries as well as the alternator should. I have no issues with the charging system at all, I will do as you say. If infact this was the problem, will the code subside??? Thanks in advance,

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Old 03-26-2011, 04:43 PM
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The code should reset itself in 50, cold to warm starts. By this, the engine will have to be below a certain temp., then be started and warmed up past another set temp. This will reset the code without having a scanner.
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Old 04-02-2011, 11:06 PM
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Originally Posted by stodg73 View Post
The code should reset itself in 50, cold to warm starts. By this, the engine will have to be below a certain temp., then be started and warmed up past another set temp. This will reset the code without having a scanner.
Let me help you out...

Warm-Up Cycles
Once the MIL has been extinguished by the Good Trip Counter, the PCM automatically switches to a Warm-Up Cycle Counter that can be viewed on the DRB III. Warm-Up Cycles are used to erase DTCs and Freeze Frames. Forty Warm-Up cycles must occur in order for the PCM to self-erase a DTC and Freeze Frame. A Warm-Up Cycle is defined as follows:
•Engine coolant temperature must start below and rise above 160° F
•Engine coolant temperature must rise by 40° F
•No further faults occur
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