I need help please. Took my 2016 is200t f sport to a friend and had rsr downs installed. Everything was good after install. I live in the sticks so garages here are few and far in between....took car in to get alignment and after they did the alignment there is a yellow triangle on dash lit up...PCS light is blinking and traction control is lit up. No idea what is going on. Was fine and no lights till alignment. Any help is greatly appreciated.

 

At a guess, the PCS light is flashing because there is a malfunction in the Vehicle Stability Control...which is your Slip indicator light that is currently on.
The Slip light is on possibly due to the alignment being done. After an alignment it is recommended to performing a zero point calibration of the Yaw rate and Acceleration sensors.
There is a manual way to do it without the Techstream...it's a little tough, but doable.

 

Where can I find instructions for doing this manually? And btw..thanks for the input

 

Here is the procedure. If you don't feel comfortable doing it, take the vehicle to the dealer and have them check the vehicle.
Worse case if it doesn't work because it's not the issue, then you're still taking it to someone to look at the vehicle.
When they refer to the SST Check Wire in the next line, it's just a piece of wire, a few inches long, that has a pin terminal on each end. The pin terminal is the same or similar to that which you would find in a connector.
If you have a scrap piece of wire harness, you can remove two pins from the connector and just join the wire ends of the pins together...and viola, you have an SST.
The DLC3 connector is the OBDII port under the lower drivers side dash.
If you attempt it, follow the instructions exactly...make sure the car is on level ground and the steering wheel is set to the straight ahead position.

PERFORM YAW RATE AND ACCELERATION SENSOR ZERO POINT CALIBRATION AND STORE SYSTEM INFORMATION (When Using SST Check Wire)

NOTICE:
Stored system information cannot be overwritten unless it is cleared. Clear the stored information and then store new system information.

• While obtaining the zero point, keep the vehicle stationary and do not vibrate, tilt, move, or shake it.
• Be sure to perform this procedure on a level surface (with an inclination of less than 0.25 degrees).
• While obtaining the zero point, make sure the tire pressure is as specified and the vehicle is in full contact with the ground (not lifted up or loaded).

(a) Clear the zero point calibration data and system information.

NOTICE:

Performing the following procedure will clear the zero points of the yaw rate and acceleration sensor and system information simultaneously.

(1) Turn the engine switch off.

(2) Check that the steering wheel is centered.

(3) Apply the parking brake.

(4) Check that the shift lever is in P.

(5) Turn the engine switch on (IG).

(6) The warning light and indicator light come on for 3 seconds to indicate that the initial check has completed.

(7) Using SST, connect and disconnect terminals TS and CG of the DLC3 4 times or more within 8 seconds.

*a
Front view of DLC3
SST: 09843-18040

(8) Check that the slip indicator light comes on.

NOTICE:

• If the vehicle is driven after the zero point of the yaw rate and acceleration sensor and system information are cleared, DTCs will be stored.
• If the engine switch is turned on (IG) for more than 15 seconds with the shift lever in P after the zero point of the yaw rate and acceleration sensor has been cleared, only the zero point of the yaw rate sensor will be stored. If the vehicle is driven under these conditions, the skid control ECU (brake actuator assembly) will store the zero point calibration for the acceleration sensor as not being completed. The skid control ECU (brake actuator assembly) will then also indicate this as a malfunction of the VSC system using the indicator light.

(9) Turn the engine switch off.

(b) Perform the yaw rate and acceleration sensor zero point calibration and store system information.

NOTICE:

Performing the following procedure will perform the yaw rate and acceleration sensor zero point calibration, and also store system information simultaneously.

(1) Turn the engine switch off.

(2) Check that the steering wheel is centered.

(3) Apply the parking brake.

(4) Check that the shift lever is in P.

NOTICE:

• DTCs 36 (Zero Point Calibration of Yaw Rate Sensor Undone) and 98 (Zero Point Calibration of Acceleration Sensor Undone) will be recorded if the shift lever is not in P.
• If a DTC is stored that indicates zero point calibration is incomplete, repeat the procedure starting at the step for clearing the zero point calibration data and system information.

(5) Using SST, connect terminals TS and CG of the DLC3.

*a
Front view of DLC3
SST: 09843-18040

(6) Turn the engine switch on (IG).

(7) After Test Mode has been entered, keep the vehicle stationary on a level surface for 5 seconds or more.

(8) Check that the slip indicator light comes on for several seconds and then blinks in the Test Mode pattern.

HINT:

• If the slip indicator light does not blink, perform zero point calibration again.
• Zero point calibration is performed only once after the system enters Test Mode.
• Calibration cannot be performed again until the stored data is cleared.

(9) Turn the engine switch off and disconnect SST from the DLC3.