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Fixes for Dodge Nitro 2007 - 2010 (KA)



Vehicle:  2007 (KA) Dodge Nitro

Concern:  The MIL (check engine light) is on. Scan tool reveals DTC P0456 small leak detected.

Cause:  A leak in the evaporative emissions system.

Resolution:  Check the vapor line just forward of the fuel tank. In this case, I found the line was loose, not fully engaged. It appeared OK at first glance. An air test with the evap smoke/air test machine confirmed that a leak was present. A smoke test revealed the source. Fully connect the vapor line to correct.

Details:  The lines are snap-together (quick-connect) type. No tools required.

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Vehicle:  All vehicles. (JK)(ZJ)(CS)(JC)(TJ)(XJ)(PT)(KJ)(KK)(KA)(AN)(ND)(DR)(DS)(WJ)(WK)(XK)(LX)(LH)(FJ)(JR)(JS)(RT)(RS)(NS)

Concern:  The MIL (check engine light) is on. The scan tool reveals DTC P0601 PCM internal controller failure.

Cause:  The PCM (engine computer) has an internal fault.

Resolution:  Replace the PCM to correct.

Details:  This is an easy diagnosis. When P0601 is present, the solution is always to replace the PCM. There is no other possible cause. Normally the vehicle is still driveable.

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Vehicle:  All Chrysler, Jeep, and Dodge vehicles. (JK)(ZJ)(CS)(JC)(TJ)(XJ)(PT)(KJ)(KK)(KA)(AN)(ND)(DR)(DS)(WJ)(WK)(XK)(LX)(LH)(FJ)(JR)(JS)(RT)(RS)(NS)

Concern:  Alternator failure. The alternator (generator) is not charging. Electrical problems.

Cause:  -

Resolution:  Hold on for a minute. Alternator failures are extremely rare on Chrysler, Jeep, and Dodge. You need to rule out the battery, wiring, and PCM first before replacing the alternator.

Details:  The alternator is controlled by the PCM (engine computer). Again, true alternator failure is very rare. In ten years as a dealer service dept tech, I have replaced maybe five alternators.

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