Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
SYS.OK|MANUAL.DBβ LIVE
HOMESERVICE MANUALSCADILLAC2011CTS BASE, 4D WAGON, 3.6 D, AWDREPAIR AND DIAGNOSISTRANSMISSIONAUTOMATIC TRANSAUTOMATIC TRANSMISSION - 6L45/6L50/6L90 - DTC P0150C THROUGH DTC P2764DTC P1765-P1767CIRCUIT/SYSTEM TESTING
2011 Cadillac CTS Base, 4D Wagon, 3.6 D, AWD
Circuit/System Testing
2011 Cadillac CTS Base, 4D Wagon, 3.6 D, AWDSECTION Circuit/System Testing
- Ignition OFF, disconnect the automatic transmission manual shift switch left and right wire harness connector.
- Ignition ON, test for 11-13 volts on terminal 2 on both the automatic transmission manual shift switch left and right harness connectors and ground.
- If not within the specified value, test the voltage circuit for a short to ground or an open/high resistance. If the circuit tests normal, replace the BCM.
- Ignition OFF, test for infinite resistance between terminal 1 and terminal 2 on the automatic transmission manual shift switch-right, with the switch open.
- If not the specified value, replace the automatic transmission manual shift switch-right
- Ignition OFF, test for 1.20-1.50 k Ξ© between terminal 1 and terminal 2 on the automatic transmission manual shift switch-right, with the switch closed.
- If not within the specified value, replace the automatic transmission manual shift switch-right.
- Ignition OFF, test for infinite resistance between terminal 1 and terminal 2 on the automatic transmission manual shift switch-left, with the switch open.
- If not within the specified value, replace the automatic transmission manual shift switch-right.
- Ignition OFF, test for 1.50-1.80 k Ξ© between terminal 1 and terminal 2 on the automatic transmission manual shift switch-left, with the switch closed.
- If not within the specified value, replace the automatic transmission manual shift switch-left.
- Ignition OFF, connect a 3A fused jumper wire between terminal 1 and terminal 2 on the automatic transmission manual shift switch-left harness connector.
- Ignition ON, test for 11-13 volts on the BCM connector X1 terminal 7 and ground.
- If not within the specified range, test the signal circuit for a short to ground or an open/high resistance. If the circuit tests normal, replace the BCM.
RENDER: 1.0x
NO RELATED
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- β’ You smell fuel, burning insulation, or see smoke.
- β’ Brakes feel soft, pull hard to one side, or make grinding noises.
- β’ The engine overheats, stalls repeatedly, or misfires under load.
- β’ You are missing required tools, torque specs, or safe lifting equipment.
- β’ You are not confident in the next step or safety outcome.