Pinpoint Test L : Paddle Shifters Are Inoperative Or Do Not Operate Properly
- L1
- Road test the vehicle and use the paddle shifters to upshift and downshift the transmission.
Do the paddle shifters work properly?
Yes The paddle shifters are working properly at this time. INSPECT harness connectors for loose terminals or corrosion. No For the upshift paddle switch concern, GO to L2For the downshift paddle switch concern, GO to L7If both paddle switches are inoperative, GO to L11 - L2 CHECK THE PADDLE SHIFT SWITCH
- Disconnect Upper Clockspring C218B .
- Measure:
Positive Lead Measurement / Action Negative Lead C218B, Harness side resistance pin 12. C218B, Harness side resistance pin 13.
Is the resistance less than 1.5 ohms with upshift selected and greater than 10, 000 ohms when released?
Yes GO to L3 No INSTALL a new upshift paddle switch. REFER to: Upshift Paddle Switch . - L3 CHECK THE UPSHIFT SIGNAL CIRCUIT FOR VOLTAGE
- Ignition OFF.
- Inspect the connector for damaged or pushed-out terminals.
- Ignition ON.
- Measure:
Positive Lead Measurement / Action Negative Lead Clockspring Side, C218B-12 Ground
Is the voltage greater than 11 volts?
Yes GO to L6 No GO to L4 - L4 CHECK THE UPSHIFT SIGNAL CIRCUIT FOR AN OPEN
- Ignition OFF.
- Disconnect TCM C1822 .
- Inspect the connector for damaged or pushed-out terminals.
Is the resistance less than 3 ohms?
Yes GO to L5 No REPAIR the circuit. - L5 CHECK THE UPSHIFT SIGNAL CIRCUIT FOR A SHORT TO GROUND
- Measure:
Positive Lead Measurement / Action Negative Lead C1822-30 Ground
Is the resistance greater than 10, 000 ohms?
Yes GO to L6 No REPAIR the circuit. - Measure:
- L6 CHECK THE SIGNAL RETURN CIRCUIT FOR AN OPEN
- Connect TCM C1822 .
- Ignition ON.
Is the voltage greater than 11 volts?
Yes GO to L12 No REPAIR the circuit. If an open circuit is not found, INSTALL a new TCM. REFER to: Transmission Control Module (TCM) . PERFORM the Transmission Strategy Download procedure. REFER to: Transmission Strategy Download . - L7 CHECK THE PADDLE SHIFT DOWNSHIFT SWITCH
- Disconnect Upper Clockspring C218B .
- Measure:
Positive Lead Measurement / Action Negative Lead C218B, Harness side resistance pin 5. C218B, Harness side resistance pin 13.
Is the resistance less than 1.5 ohms with downshift selected and greater than 10, 000 ohms when released?
Yes GO to L8 No INSTALL a new paddle shift downshift switch. REFER to: Downshift Paddle Switch . - L8 CHECK THE DOWNSHIFT SIGNAL CIRCUIT FOR VOLTAGE
- Ignition OFF.
- Inspect the connector for damaged or pushed-out terminals.
- Ignition ON.
- Measure:
Positive Lead Measurement / Action Negative Lead Clockspring side, C218B-5 Ground
Is the voltage greater than 11 volts?
Yes GO to L11 No GO to L9 - L9 CHECK THE DOWNSHIFT SIGNAL CIRCUIT FOR AN OPEN
- Ignition OFF.
- Disconnect Upper Clockspring C218B .
- Inspect the connector for damaged or pushed-out terminals.
Is the resistance less than 3 ohms?
Yes GO to L10 No GO to L12 - L10 CHECK THE DOWNSHIFT SIGNAL CIRCUIT FOR A SHORT TO GROUND
- Measure:
Positive Lead Measurement / Action Negative Lead C1822-33 Ground
Is the resistance greater than 10, 000 ohms?
Yes GO to L11 No GO to L12 - Measure:
- L11 CHECK THE SIGNAL RETURN CIRCUIT FOR AN OPEN
- Connect TCM C1822 .
- Ignition ON.
Is the resistance less than 3 ohms?
Yes REPAIR the circuit. If an open circuit is not found, INSTALL a new TCM. REFER to: Transmission Control Module (TCM) . PERFORM the Transmission Strategy Download procedure. REFER to: Transmission Strategy Download . No GO to L12 - L12 CHECK THE CIRCUITS BETWEEN THE TCM AND THE SCCM FOR AN OPEN
- Ignition ON.
- Measure:
Positive Lead Measurement / Action Negative Lead C1822-30 C226A-10 C1822-33 C226A-9 C1822-12 C226A-11
Is the resistance less than 3 ohms?
Yes GO to L13 No REPAIR the circuit. - L13 CHECK THE SCCM FOR AN OPEN
- Ignition ON.
- Measure:
Positive Lead Measurement / Action Negative Lead C226A-10 C218G-2 C226A-9 C218G-3 C226A-11 C218G-4
Is the resistance less than 3 ohms?
Yes INSTALL a new clockspring. No INSTALL a new SCCM. REFER to: Steering Column Control Module (SCCM) .