Programming and Relearning

POWER ASSIST SYSTEMS: POWER STEERING SYSTEM: CALIBRATION

1. ASSIST MAP WRITING (USING THE TECHSTREAM)

(a) Turn the power switch off.

(b) Connect the Techstream to the DLC3.

(c) Turn the power switch on (IG).

(d) Turn the Techstream on.

(e) Enter the following menus: Chassis / EMPS / Utility / Signal Check.

HINT
* Follow the instructions on the Techstream to perform Signal Check.
* With DTC C1581/26 output, performing Signal Check will cause the power steering ECU assembly to enter Test Mode and the assist map will be written automatically.

(f) Wait for at least 5 seconds.

(g) Check for DTCs Reading and Clearing Diagnostic Trouble Codes.

HINT
After writing the assist map, if DTC C1581/26 is output, perform the troubleshooting procedure for DTC C1581/26 C1581.

2. ASSIST MAP WRITING (USING SST CHECK WIRE)

(a) Turn the power switch off.





(b) Using SST, connect terminals 12 (TS) and 4 (CG) of the DLC3.

SST : 09843-18040

NOTICE:
Connect the terminals correctly to avoid a malfunction.

(c) Turn the power switch on (IG).

(d) Wait for 5 seconds or more.

(e) Check for DTCs Reading and Clearing Diagnostic Trouble Codes.

HINT
After writing the assist map, if DTC C1581/26 is output, perform the troubleshooting procedure for DTC C1581/26 C1581.

Text in Illustration