‘14 BEV insulation faults, 22280F & 21F0E3

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benrk

Member
Joined
Mar 12, 2019
Messages
12
Location
Winnipeg, MB, CDN
Hi there,

On my beloved 2014 BEV with 47tkm I got the dreaded drivetrain malfunction error, relevant codes are 22280F “HV power management: HV battery, insulation fault” and 21F0E3 “Insulation monitoring - Insulation fault in the entire system (closed contactors)” Both codes have equivalents with slightly different numbers “warning” instead of “fault”

No warranty, usually fixing my cars myself, if anyone has something useful to contribute, please fire away. Past experiences with these codes, literature on the codes, all is welcome.

TIA, Ben
 
Found these:

https://static.nhtsa.gov/odi/tsbs/2014/MC-10148189-9999.pdf

https://static.nhtsa.gov/odi/tsbs/2016/MC-10151374-9999.pdf

"The cause of an isolation fault is generally a resistance between HV+ or HV- and the shield/chassis
ground, which is below a predetermined threshold."

"The following procedure addresses these faults when caused by a defect in the cable between the
HV battery and the EME"

Moisture in the connections of that cable, causing a Drive Train error, has come up before.
 
benrk said:
Hi there,

On my beloved 2014 BEV with 47tkm I got the dreaded drivetrain malfunction error, relevant codes are 22280F “HV power management: HV battery, insulation fault” and 21F0E3 “Insulation monitoring - Insulation fault in the entire system (closed contactors)” Both codes have equivalents with slightly different numbers “warning” instead of “fault”

No warranty, usually fixing my cars myself, if anyone has something useful to contribute, please fire away. Past experiences with these codes, literature on the codes, all is welcome.

TIA, Ben
Click to expand...
Ben, I'm at the same point with my 2015 REX with same errors, work on my own stuff and would really appreciate knowing how you made out with this issue? (BTW, I'm in central Ontario which has had a pretty wet start this winter so I can't help but think its related)
 
werdnam said:
Ben, I'm at the same point with my 2015 REX with same errors, work on my own stuff and would really appreciate knowing how you made out with this issue? (BTW, I'm in central Ontario which has had a pretty wet start this winter so I can't help but think its related)
Click to expand...
Any updates
 

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