Lexus IS250 IS220d GSE20 ALE20 - POWER STEERING
POWER STEERING ECU - INSTALLATION
1. INSTALL POWER STEERING ECU ASSEMBLY |

Connect connector (c) to the power steering ECU assembly.
Connect 2 power steering ECU assembly connectors (a) and (b) and securely lock the connectors.

Install the power steering ECU assembly to the battery tray with the 3 bolts.
- Torque:
- 5.0 N*m{ 51 kgf*cm, 44 in.*lbf}
Install the No. 1 battery tray support.
2. INSTALL BATTERY |
Install the battery.
Install the battery insulator.
Install the battery clamp with the 2 nuts.
- Torque:
- 2.9 N*m{ 30 kgf*cm, 26 in.*lbf}
Connect the positive (+) battery cable to the battery.
- Torque:
- 5.6 N*m{ 57 kgf*cm, 50 in.*lbf}
Connect the negative (-) battery cable to the battery.
- Torque:
- 5.6 N*m{ 57 kgf*cm, 50 in.*lbf}
3. PERFORM INITIALIZATION |
- HINT:
- Some systems need initialization when disconnecting the cable from the negative battery terminal .
4. INITIALIZE ROTATION ANGLE SENSOR AND CALIBRATE TORQUE SENSOR ZERO POINT |
- HINT: