GM Service Manual Online
For 1990-2009 cars only

Roof and Door Module (RDM)

Scan Tool Output Control

Additional Menu Selection(s)

Description

Header Latch

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The roof/door module (RDM) actuates the header latch to the Latched position when commanded ON. The header latch will actuate to Unlatched when commanded OFF.

Pump Motor Direction

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When the Open command is selected, the roof/door module (RDM) will actuate the hydraulic pump motor in the roof open rotational direction for 2 seconds.

When the Close command is selected, the RDM will actuate the hydraulic pump motor in both directions. First in the roof close rotational direction for 2 seconds, then pausing for 3 additonal seconds and then activating the pump in the open direction for 2 more seconds.

Roof System

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The roof/door module (RDM) operates the roof system through a complete open cycle when commanded Open. When Close is commanded, the RDM operates the roof system through a complete close cycle. The roof Open and Close cycle commands can be terminated at any time by pressing the Exit or Abort key.

Tonneau Latch

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The roof/door module (RDM) actuates the tonneau latch to the unlatched position when commanded Off. The RDM actuates the tonneau latch to the latched position when commanded On.

Valve 1

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When commanded On, the roof/door module (RDM) energizes the #1 hydraulic pump solenoid valve to the open position for 5 seconds or until commanded Off. In a partially closed roof situation, the roof panels will retract to their mechanical resting position while the valve is open.

Valve 2

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When commanded On, the roof/door module (RDM) energizes the #2 hydraulic pump solenoid valve to the open position for 5 seconds or until commanded Off. In a partially closed roof situation, the roof panels will retract to their mechanical resting position while the valve is open.

Valve 3

--

When commanded On, the roof/door module (RDM) energizes the #3 hydraulic pump solenoid valve to the open position for 5 seconds or until commanded Off. In a partially closed roof situation, the roof panels will retract to their mechanical resting position while the valve is open.

Valve 4

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When commanded On, the roof/door module (RDM) energizes the #4 hydraulic pump solenoid valve to the open position for 5 seconds or until commanded Off. In a partially closed roof situation, the roof panels will retract to their mechanical resting position while the valve is open.