Monday, March 1, 2021

2010 Cadillac CTS Sedan AWD V6-3.6L Page 417

2010 Cadillac CTS Sedan AWD V6-3.6L Page 417



Instructions) provides an overview of each diagnostic category.



DTC Descriptors



DTC B1544 01



- Mirror Motors Common Circuit Short to Battery



DTC B1544 02



- Mirror Motors Common Circuit Short to Ground



DTC B1544 04



- Mirror Motors Common Circuit Open



DTC B1600 01



- Mirror Motor Vertical Circuit Short to Battery



DTC B1600 02



- Mirror Motor Vertical Circuit Short to Ground



DTC B1600 04



- Mirror Motor Vertical Circuit Open



DTC B1605 01



- Mirror Motor Horizontal Circuit Short to Battery



DTC B1605 02



- Mirror Motor Horizontal Circuit Short to Ground



DTC B1605 04



- Mirror Motor Horizontal Circuit Open



Diagnostic Fault Information



Circuit/System Description



The Driver Door Switch (DDM) or Passenger Door Switch (PDM) controls the mirror horizontal and vertical motors through the use of



bi-directional motor controls. When the mirror is commanded up and down, voltage or ground is supplied to the mirror vertical motor through the



mirror motor up/down control circuit and voltage or ground is supplied through the mirror motor common control circuit.



Horizontal controls operate in the same manner with the mirror motor left/right control circuit supplying voltage or ground and the mirror motor



common control circuit suppling voltage or ground to the mirror horizontal motor when the mirror is commanded right and left.



Conditions for Running the DTC



Battery voltage must be between 9-16 volts.



Conditions for Setting the DTC



B1544



An improper voltage level is detected on the mirror motor common control circuit.



B1600



An improper voltage level is detected on the mirror motor vertical control circuit.



B1605



An improper voltage level is detected on the mirror motor horizontal control circuit.

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