Programming and Relearning

3MZ-FE ENGINE CONTROL SYSTEM: SFI SYSTEM: INITIALIZATION

INITIALIZATION

1. PERFORM INITIALIZATION
(a) Apply the parking brake and chock the wheels.
(b) Connect the Techstream to the DLC3.
(c) Put the engine in the inspection mode Component Tests and General Diagnostics.
(d) Select the following menu items: Powertrain / Engine and ECT / Data List / Coolant Temp.
(e) Warm up the engine with the A/C switch off until the coolant temperature becomes 83°C (181°F) or more.
(f) Select the following menu items: Powertrain / Hybrid Control / Data List / State of Charge.
(g) Move the shift lever to the N position, set the A/C switch to MAX cool or turn on the front defroster, and leave the vehicle until the SOC value is below 40%.
HINT: If the SOC is substantially below 40%, the HV battery may become fully discharged. Therefore, do not allow the SOC to reach substantially below 40%.

(h) Move the shift lever to the P position and turn the power switch off.
(i) Disconnect the negative terminal from the auxiliary battery and leave it for 1 minute or more.
(j) Reconnect the negative terminal to the auxiliary battery and turn the power switch on (IG).
(k) Select the following menu items: Powertrain / Engine and ECT / Data List / Coolant Temp.
(l) Check that the engine coolant temperature is 83°C (181°F) or more.
HINT: If the engine coolant temperature is below 83°C (181°F), start the engine by depressing the accelerator pedal with the shift lever in the P position to increase the coolant temperature.

(m) Select the following menu items: Powertrain / Engine and ECT / Data List / Calculate Load.
(n) Move the shift lever to the D position while depressing the brake pedal with your left foot.
(o) Depress the accelerator pedal with your right foot while firmly depressing the brake pedal with your left foot, and maintain an engine load value of 45% or more (accelerator pedal depressed 60 to 70%) for approximately 30 seconds.
NOTE: Do not perform this step for 40 seconds or more.

(p) Shift the shift lever to the P position. Turn the power switch off and then wait for 5 seconds before turning the power switch on (READY).
(q) Select the following menu items: Powertrain / Engine and ECT / Data List / ISC Learning.
(r) Check that the air conditioner is off. Lightly depress the accelerator pedal and release it when the engine starts.
(s) Check that "Complete" is displayed on Techstream screen.
HINT:
- If "ISC LEARNING" is not completed within 1 minute, repeat steps (o) through (r).
- The engine will usually stop when "ISC LEARNING" is completed. However, the engine will not stop even when "ISC LEARNING" is completed in such cases when the charge level of the auxiliary battery is decreased.