P1698 and P0622
10-13-2018, 03:27 PM
#1
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Year: 2000
Model: Cherokee (XJ)
Engine: 4.0
P1698 and P0622
Hi everyone, I have a 2000 Jeep Cherokee with 145k on it. This morning I got the following check engine light codes, P1698 and P0622. Alternator is 3 years old, and tested within specs. Battery was 3 years old, and tested bad so I swapped in a new one. Still have the check engine for the same codes. Jeep runs fine, before the check engine light came on I took it on a 2 hour round trip drive with no issues. Any ideas?
10-14-2018, 10:31 AM
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Year: 2000
Model: Cherokee (XJ)
Engine: 4.0
Currently only have the p1698 code. Going to clean grounds, hit them with some electrical cleaner and re set ecu. What’s strange is I still have all the gauges, the Jeep seems to be shifting fine etc.
10-14-2018, 11:25 AM
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Year: 1997
Model: Cherokee
Engine: 4.0L
It never hurts to clean the grounds. Clean the alternator connections while youre at it. Might help, might not. But atleast you will know they are good.
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