Question about 1997 Chrysler Concorde
DTC 12 - Battery or power line recently disconnected - This code is normal
if the electrical system has been worked on or the battery has recently
been disconnected. It will be removed after 15 ignition switch on/off
DTC 21 - Oxygen Sensor
Bad connection or wiring - Check the wiring and connections between the sensor and the logic module (or SMEC). Clean and regrease any corroded connectors with dielectric grease and repair any shorts. Look for melted wire insulation near the exhaust manifold. An open connection will cause this fault code.
Bad oxygen sensor - Replace the sensor which is located on the turbo housing near the down pipe (for turbo) or on the down pipe near the exhaust manifold.
Diagnostic Method - Trigger Parameters
- In closed-loop for 718 seconds (11 minutes, 58 seconds)
- Sensor output stays in the neutral region for more than 21 seconds
Results If Component Fails
A fault code 21 is stored. The circuit stays in closed-loop and the logic module will still monitor the oxygen sensor signal and allow the engine to run rich, but prevent it from running lean.
DTC 55 - No further fault codes are stored.
If this is the only code received, then there are no codes stored in memory. This code will always be given, even if nothing is wrong. If you do not get this code, then you may not be retreiving the codes properly, or the power loss light may be burnt out. The light should come on for 1 second when the ignition is initally turned on as a bulb test.
Really, the main problem that you have there is the O2 sensor, its possible that you need to replace it to solve your problem.
Hope this helps (remember to rating this answer and leave us a testimonial comment).
Posted on Oct 13, 2011
Save hours of searching online or wasting money on unnecessary repairs by talking to a 6YA Expert who can help you resolve this issue over the phone in a minute or two.
Best thing about this new service is that you are never placed on hold and get to talk to real repairmen in the US.
Here's a link to this great service
Posted on Jan 02, 2017
Tips for a great answer:
Sep 20, 2014 | 1997 Chrysler Concorde
Aug 02, 2012 | Chrysler Cars & Trucks
Jul 09, 2011 | 2000 Chrysler Concorde
Feb 01, 2011 | 1997 Chrysler Concorde
Dec 03, 2010 | 1997 Chrysler Concorde
Sep 16, 2010 | 1997 Chrysler Concorde
May 13, 2010 | 1997 Chrysler Concorde
Dec 31, 2009 | 1997 Chrysler Concorde
Oct 04, 2009 | 1997 Chrysler Concorde
302 people viewed this question
Usually answered in minutes!
Step 2: Please assign your manual to a product: