Hypertech show H codes in DIC ?
Thread Starter
Le Mans Master
Joined: Aug 2001
Posts: 8,059
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From: Good Ol' NC
Hypertech show H codes in DIC ?
Just checked my DIC codes and had quite a few loses of communication. Was wondering if the recent Hypertech programming I perfromed would trigger these in history. here are a few ...
U1064H
U1040H
U1176H
U1160H
B2284
B2282
:chevy
U1064H
U1040H
U1176H
U1160H
B2284
B2282
:chevy
Drifting
Joined: May 2002
Posts: 1,607
Likes: 1
From: San Francisco CA
Re: Hypertech show H codes in DIC ? (lostsoulny)
While the “U” codes are loss of communication codes the “B” codes refer to the LH door control module. The LDCM has two main power feeds (high and low). Your codes indicate that the low power feed that is used to provide power for the LDCM logic and internal driver operation (B2282) as well as the high power feed that is used to provide power for systems controlled by the LDCM that draw higher amounts of current (lights, motors, etc) (B2284). B2282 or B2284 will be set when a voltage lower than 8.5 or higher than 16.3 is detected. Both of these DTC’s can only be set as history (H) codes even if the malfunction is current. I would first reset the DTC’s and see if they reappear. That would tell you if it is intermittent or not.
Probable causes of B2282: open or short to ground in the battery 1 circuit (CKT 2140), battery voltage is out of range, charging system malfunction, or a bad LDCM.
Probable causes of B2284: open or short to ground in the battery 2 circuit (CKT 2640), battery voltage is out of range, charging system malfunction, or a bad LDCM.
Probable causes of B2282: open or short to ground in the battery 1 circuit (CKT 2140), battery voltage is out of range, charging system malfunction, or a bad LDCM.
Probable causes of B2284: open or short to ground in the battery 2 circuit (CKT 2640), battery voltage is out of range, charging system malfunction, or a bad LDCM.
