Operation CHARM: Car repair manuals for everyone.
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

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FE23 - Check DRL Circuit Continuity



- Key "OFF".

- Breakout box installed, Powertrain Control Module (PCM) disconnected.

- Disconnect Daytime Running Lamps relay.

- Measure resistance between test pin 14 at breakout box and Daytime Running Lamps relay signal pin cavity at DRL relay female connector (refer to Pinpoint Test schematic).

- Is resistance less than 5.0 ohms?

Yes -- Go to FE24. FE24 - Check DRL Circuit For Short to Ground

No -- Service open circuit. Remove breakout box. Reconnect all components. Verify elimination of idle speed concern.