600SEL (140.057) V12-6.0L (120.980) (1993)
Engine Control Module: Adjustments
If an injection control module is the suspect problem or defective, it should be replaced with a known good or new unit. After replacement, the control
module's "self-adaptive" feature must be reset to erase any "learned" values. Each injection control module (LH-SFI) must be reset individually.
SPECIAL TOOLS
The following special tools are required to perform the reset procedure:
Impulse Counter Scan Tool
a. Impulse counter scan tool# 124 589 19 21 00 (or equivalent).
Impulse Counter Adapter
b. Impulse counter adapter# 140 589 14 63 00 (or equivalent).
Test Equipment Hook-up
TEST EQUIPMENT HOOK-UP
Connect the Impulse counter (013) and adapter (075) according to connection diagram. LED "U-Batt" must light up. If "U-Batt" does not light up,
check power supply and impulse counter fuse.
CLEARING FAULT CODE MEMORY AND RESETTING ECM
1. Turn ignition "ON".