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Old 10-10-2008, 06:31 AM   #1 (permalink)
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check guages light?????

so my boyfriend is at work and he asked me to ask if any body has had a check guages light come on for a few seconds then go off? the guages are still working and good!
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Old 10-10-2008, 06:45 AM   #2 (permalink)
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Yep, get it once in a while, usually when i let off the accelerator, but all my gauges are in the right ranges. Does he get this a lot?
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Old 10-10-2008, 06:52 AM   #3 (permalink)
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this should help for how it works from chrysler

OPERATION
The check gauges indicator gives an indication to the vehicle operator when certain instrument cluster gauge readings reflect a condition requiring immediate attention. This indicator is controlled by a transistor on the instrument cluster circuit board based upon cluster programming and electronic messages received by the cluster from the Powertrain Control Module (PCM) on vehicles equipped with a gasoline engine, or from the Engine Control Module (ECM) on vehicles equipped with a diesel engine over the Programmable Communications Interface (PCI) data bus. The check gauges indicator Light Emitting Diode (LED) is completely controlled by the instrument cluster logic circuit, and that logic will only allow this indicator to operate when the instrument cluster receives a battery current input on the fused ignition switch output (run-start) circuit. Therefore, the LED will always be off when the ignition switch is in any position except On or Start. The LED only illuminates when it is provided a path to ground by the instrument cluster transistor. The instrument cluster will turn on the check gauges indicator for the following reasons:

Bulb Test - Each time the ignition switch is turned to the On position the check gauges indicator is illuminated for about two seconds as a bulb test.

Engine Temperature High Message - Each time the cluster receives a message from the PCM or ECM indicating the engine coolant temperature of a gasoline engine is about 122° C (252° F) or higher, or of a diesel engine is about 112° C (233° F) or higher, the check gauges indicator will be illuminated. The indicator remains illuminated until the cluster receives a message from the PCM or ECM indicating that the engine coolant temperature of a gasoline engine is below about 122° C (252° F), or of a diesel engine is below about 112° C (233° F), or until the ignition switch is turned to the Off position, whichever occurs first.

Engine Oil Pressure Low Message - Each time the cluster receives a message from the PCM or ECM indicating the engine oil pressure is about 41 kPa (6 psi) or lower, the check gauges indicator will be illuminated. The indicator remains illuminated until the cluster receives a message from the PCM or ECM indicating that the engine oil pressure is above about 41 kPa (6 psi), or until the ignition switch is turned to the Off position, whichever occurs first. The cluster will only turn the indicator on in response to an engine oil pressure low message if the engine speed is greater than zero.

System Voltage Low (Charge Fail) Message - Each time the cluster receives a message from the PCM or ECM indicating the electrical system voltage is less than about 11.5 volts (charge fail condition), the check gauges indicator will be illuminated. The indicator remains illuminated until the cluster receives a message from the PCM or ECM indicating the electrical system voltage is greater than about 12.0 volts (but less than 16.0 volts), or until the ignition switch is turned to the Off position, whichever occurs first.

System Voltage High Message - Each time the cluster receives a message from the PCM or ECM indicating the electrical system voltage is greater than about 16.0 volts, the check gauges indicator will be illuminated. The indicator remains illuminated until the cluster receives a message from the PCM or ECM indicating the electrical system voltage is less than about 15.5 volts (but greater than 11.5 volts), or until the ignition switch is turned to the Off position, whichever occurs first.

Actuator Test - Each time the cluster is put through the actuator test, the check gauges indicator will be turned on, then off again during the bulb check portion of the test to confirm the functionality of the LED and the cluster control circuitry.

On vehicles with a gasoline engine, the PCM continually monitors the engine temperature, oil pressure, and electrical system voltage, then sends the proper messages to the instrument cluster. On vehicles with a diesel engine, the ECM continually monitors the engine temperature, oil pressure, and electrical system voltage, then sends the proper messages to the instrument cluster. For further diagnosis of the check gauges indicator or the instrument cluster circuitry that controls the LED, (Refer to 8 - ELECTRICAL/INSTRUMENT CLUSTER - DIAGNOSIS AND TESTING). For proper diagnosis of the PCM, the ECM, the PCI data bus, or the electronic message inputs to the instrument cluster that control the check gauges indicator, a DRBIIIŽ scan tool is required. Refer to the appropriate diagnostic information.
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Old 10-10-2008, 05:37 PM   #4 (permalink)
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thanks for all the info, it came on for a just a second this morning after about 30 min of driving, i was getting on the interstate under fairly heavy throttle and noticed it when i looked down, but it went off as soon as i saw it, all gauges were good, checked codes and all i got was a 0483, fan clutch code i think, i pulled a 15000 pound trailer a week ago and im pretty sure it still engages and it never got hot,any ideas? thanks Chris
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Old 10-10-2008, 07:55 PM   #5 (permalink)
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See this thread on the fan clutch. They're unrelated, but wouldn't be a bad idea to check it out.

I get the check gauges light occasionally, but it was so random it was hard to track down when it came on.
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