Operation CHARM: Car repair manuals for everyone.
Home >> GMC >> 1999 >> S15/T15 Jimmy 2WD V6-4.3L VIN W >> Repair and Diagnosis >> Powertrain Management >> Relays and Modules - Powertrain Management >> Relays and Modules - Computers and Control Systems >> Body Control Module >> Testing and Inspection >> Scan Tool Testing and Procedures >> Scan Tool Data Definitions >> Outputs >> DRL Relay
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

DRL Relay

Range: ON/OFF
The DRL relay output refers to the commanded state of the DRL relay coil.

ON displays when the BCM commands the DRL relay coil to turn ON. This allows the relay to power up the daytime running lamps.

OFF displays when the BCM does not command the DRL relay coil to turn ON. This denies current to the DRL relay coil and causes the daytime running lamps to be OFF.
pro multis · About Operation CHARM