| TIBURON(GK) >2007 > G 2.7 DOHC > Brake System > ABS(Anti-Lock Brake System) > ABS Control Module>Repair procedures |

REMOVAL
1. | Disconnect the double lock connector (A) from the HECU.
2. | Disconnect the brake tubes from the HECU.
• | Do not spill brake fluid on the vehicle; it may damage the paint; if brake fluid gets on the paint, wash it off immediately with water.
• | Take care not to damage or deform the brake lines during removal and installation.
• | To prevent the brake fluid from flowing, plug and cover the hose ends and joints with a shop towel or equivalent material.
3. | Remove the HECU bracket mounting bolts and remove the HECU.
1. | Never attempt to disassemble the HECU.
2. | The HECU must be transported and stored in an upright position and with the ports sealed. The HECU must not be drained.
Tightening torque HECU bracket mounting bolts: 17~26 Nm (170~260 kg•cm, 12.5~19.1 lb•ft)
INSTALLATION
1. | Installation is the reverse of removal.
2. | Tighten the HECU mounting bolts and brake tube nuts to the specified torque.
Tightening torque HECU mounting bolt: 8~10 Nm (80~100 kg•cm, 5.9~7.3 lb•ft) HECU bracket mounting bolt: 17~26 Nm (170~260 kg•cm, 12.5~19.1 lb•ft) Brake tube nut: 13~17 Nm (130~170 kg•cm, 9.5~12.5 lb•ft)
INSPECTION
WHEEL SPEED SENSOR OUTPUT VOLTAGE CHECK
1. | Raise the vehicle and release the parking brake.
2. | Disconnect the HECU harness connector's and measure from the harness side connector.
Be sure to remove the connector's double lock and insert the probe into the harness side (back-probe). Inserting itinto the terminal side may result in a bad connection.
3. | Rotate the wheel to be measured approximately 1/2 to 1 rotation per second, and check the output voltage using a circuit tester or an oscilloscope.
Wheel speed sensor | Front left | Front right | Rear left | Rear right
Terminal (ABS) | 1 | 19 | 5 | 22
2 | 20 | 6 | 23
Terminal (ESC) | 46 | 45 | 44 | 43
15 | 30 | 14 | 29
Output voltage: When measuring with an oscilloscope: 130mV p•p or more