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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Rear Window Lockout Feature

The rear window lockout feature disables the rear power window switches. The rear power window motors can be operated only by the LH front power window switch. This lockout is a safety feature to prevent children from tampering with the power windows. The rear window lockout switch supplies battery voltage through CKT 1307 (DK BLU) to terminal F of both rear power window switches. When the rear window lockout switch is engaged, the voltage is removed from the rear power window switches. For commercial vehicles (RPO V4U), the wiring to connectors C312 and C319 is also on the locked-out CKT 1307 (DK BLU).