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From the Dodge factory service manual: P0401: EGR System Failure. Required change in air/fuel ratio not detected during diagnostic test. The PCM turns the EGR off and on momentarily. The oxygen sensor signal is monitored for changes in its output signal during this test, and if no significant change, or too much change is seen, the P0401 error flag is set. There can be a number of causes of this including: EGR solenoid or the valve itself stuck open/closed, EGR solenoid control circuitry failure, EGR solenoid vacuum supply issue (vacuum leak or pinch-off), fused ignition switch ouput open, or general intermittent error or issue with the PCM. The service manual lists a 12 step diagnostic procedure in three pages. P1684: The battery has been disconnected within the last 50 starts. Further note: P1684 is only a status and indicates that the PCM memory has been cleared within the last 50 ignition cycles, and does not indicate a problem.
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2001 Dodge caravan error code p1684?
Trouble code P1684 means: The battery has been disconnected within the last 50 starts
What is a P1684 engine code on a Dodge Grand Caravan?
The P1684 code simply means that the battery has been disconnected within the last 50 starts.
For a dodge grand caravan Should a engine code of P1684 cause the check engine light to come on?
It would be very rare for a P1684 code to turn the light on.
What is the diagnositc code p1684 and p0135 on a dodge caravan 2002 6-cylinder?
P0135-Right rear (or just) upstream O2 sensor heater failure P1684-The battery has been disconnected within the last 50 starts
What do the codes P1684 and P0601 stand for on a 2003 Dodge Caravan SXT?
Trouble code P1684 means: The battery has been disconnected within the last 50 starts P0601 is Internal Controller Failure- Common repair is Install new PCM and program it
What does code reading P1684 means?
What does code reading P1684 means for dodge neon car when you scan the engine
What is the diagnostic code P1684 on a 2003 Dodge Grand Caravan 3.3 liter engine?
From what I've found, the P1684 Code means that the ECU has lost voltage within the last 50 starts. This could be from disconnecting the battery, a loose or corroded connection, or even a weak battery from repeated or long cranking.
What is Diagnositc code p1684 for a dodge neon?
Trouble Code P1684 means:The battery has been disconnected within the last 50 starts
What is a P1684 code on a 2002 dodge neon?
Trouble code P1684 means:The battery has been disconnected within the last 50 starts
P1684 for dodge intriped 2003 how to fix?
Trouble code P1684 means: The battery has been disconnected within the last 50 starts
P1684 engine code on a 1999 Dodge Intrepid?
Trouble code P1684 means: The battery has been disconnected within the last 50 starts
2000 Dodge Intrepid codes mean P1684 P0300?
Trouble code P1684 means: The battery has been disconnected within the last 50 starts
