Question about 2007 Dodge Grand Caravan SXT Minivan

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Malfunction symbol appearing

I have since found on line that the symbol is a malfunction indicator light for the onboard diagnostic system or OBD. Today when I was driving it popped on. No other indication that anything was wrong. A few hours later when I started my car again, it came on. Could this indicate low coolant in the radiator? Thanks

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Does it look like an engine? It means you have a problem with the engine. Those vans don't have a low coolant sensor.

Posted on Aug 05, 2009

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Could be many different things if it's the check engine light. The first thing that comes to mind is an emissions DTC. Check the gas cap and make sure it's tight, some of the newer vans actually say "loose fuel cap" in the odometer display if this occurs. If the cap is tight there may be a cracked emissions hose underneath by the charcoal canister or the purge harness by the front engine mount. These were common problems on the 01-07 Rs.

Posted on Aug 24, 2009

  • Richard Callaway
    Richard Callaway Oct 25, 2013

    I have a 2009 Dodge Ram and the Malfunction Indicator Light came on and stayed on. I found out that my battery was very weak and didn't supply the onboard computer with enough voltage. Had a new battery installed and everything is back to normal now.

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Onboard diagnostic


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PRE-CHECK
1. DIAGNOSIS SYSTEM
(a) Description
 When troubleshooting OBDII vehicles, the only difference
from the usual troubleshooting procedure
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tool complying with SAE J1978 or TOYOTA handheld
tester, and read off various data output from
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Lamp (MIL) on the instrument panel when the computer
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