Error code 931B

06-09-2019, 10:47 PM

Instrument cluster throwing this code, Bentleys is no help and limited google info. Anyone have this issue? BavTech fault and shadow fault reset, cluster reset, relay good, fuses good, ambient temp sensor and wires replaced. Drove around for 30 min with no change in error.

Thx!

06-11-2019, 11:08 AM

UPDATE*
After going through the engine bay, noticed wires pinched between frame horns and bumper support. Ground short to horn, right fog light, and ambient temp sensor. I repaired the wiring but code persisted. More digging into harness and I found the junction box pinouts were the culprit-probably fried the connection. Bypassed the JB and wired directly to the cluster, until I have time to replace. No codes, temp registers accurately!

06-09-2019, 10:47 PM	#1
18rgcooper Guest 0 Rep n/a Posts Drives:	Error code 931B Instrument cluster throwing this code, Bentleys is no help and limited google info. Anyone have this issue? BavTech fault and shadow fault reset, cluster reset, relay good, fuses good, ambient temp sensor and wires replaced. Drove around for 30 min with no change in error. Thx!
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06-11-2019, 11:08 AM	#2
18rgcooper Guest 0 Rep n/a Posts Drives:	UPDATE* After going through the engine bay, noticed wires pinched between frame horns and bumper support. Ground short to horn, right fog light, and ambient temp sensor. I repaired the wiring but code persisted. More digging into harness and I found the junction box pinouts were the culprit-probably fried the connection. Bypassed the JB and wired directly to the cluster, until I have time to replace. No codes, temp registers accurately!
	Appreciate 0 Quote