Operation CHARM: Car repair manuals for everyone.
Home >> Mercedes Benz >> 1993 >> 600SEC (140.076) V12-6.0L (120.980) >> Repair and Diagnosis >> Powertrain Management >> Relays and Modules - Powertrain Management >> Relays and Modules - Computers and Control Systems >> Engine Control Module >> Application and ID >> Control Module Coding (LH and EZL/AKR)
Manuals through 2025 now available!

Our trusted friends have launched a new website named LEMON, which has newer manuals. It also contains all the CHARM manuals.

LEMON is the spiritual successor to CHARM, I recommend you try it!

Link: lemon-manuals.la or lemon-manuals.org.ua

(Some people have issue connecting. LEMON is investigating. For now, use Firefox or change your DNS server)

Or, hide this message: temporarily or permanently

Control Module Coding (LH and EZL/AKR)

LH CONTROL MODULE CODING
There are two LH control modules used to operate this engine management system. The right LH control module (N3/2) operates cylinders 1 to 6. The left LH control module (N3/2) operates cylinders 7 to 12. In order to differentiate between the left and right control module program, the left control module (N3/2) is connected to ground (coded) at connection (1.2).

EZL/AKR CONTROL MODULE CODING
There are two EZL/AKR control modules used to operate this engine management system. If the EZL/AKR control module socket "6" is not connected to ground, it operates cylinders 1 to 6. If the EZL/AKR control module socket "6" is connected to ground, it operates cylinders 7 to 12.

pro multis · About Operation CHARM