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Separate unlocking with key (US/CA)

WARNING: This page is about a different car, the 2001 Saab 9-3. However, it is still accessible from the selected car via links, so may be relevant.
Fig 1: Identifying Communication Diagram - Separate Unlocking With Key (US/CA)
G03509380Courtesy of SAAB-SCANIA OF AMERICA, INC.
Fig 2: Circuit Diagram - Separate Unlocking With Key (US/CA)
G03509381Courtesy of SAAB-SCANIA OF AMERICA, INC.

Cars on the US and CA markets are equipped as standard with a function allowing the driver's door to be unlocked separately. This function can also be programmed on other markets.

Only the driver's door is unlocked when the key is turned clockwise (driver's door LHD) or anticlockwise (driver's door RHD) for the first time.

When the key is turned, the microswitch by the lock cylinder closes and pin 4 is grounded. Pin 33 (driver's door LHD) or pin 8 (driver's door RHD) of the TWICE control module is then grounded.

A short voltage pulse is fed from control module pin 26 (driver's door LHD) or pin 69 (driver's door RHD) to the lock motor.

The lock motor is grounded in the TWICE control module by:

When the key is turned for a second time, the microswitch by the lock cylinder closes again and grounds pin 4, and thus pin 33 (driver's door LHD) or pin 8 (driver's door RHD) of the TWICE control module is grounded.

A short voltage impulse is fed to the lock motors from the TWICE control module pins:

The lock motors are grounded in the TWICE control module on: