Service manual

Group 59 Anti-Lock Brake System (Bendix) System Check

Traction Control Valve Differential Pressure Check

1 Apply 10 psi pressure to the traction control valve

service port. Note the pressure at the delivery port.

2 Subtract the delivery port value from 10 psi. This is

the differential pressure.

3 Verify the differential pressure is correct for the valve

part number. If it is incorrect, the valve should be re-

paired or replaced.

4 Deplete the air from the system and remove the test

gauges.

5 Restore the system to normal.

Traction Control Valve Solenoid Check

1 Disconnect the two pin solenoid connector from the

wire harness.

2 Measure the solenoid coil resistance. Verify it is 10

to 12 ohms.

3 Using a portable power supply, energize the valve

and verify that a full brake application occurs. Re-

move the power and verify that the brakes fully

release.

4 If the coil resistance is incorrect or the brakes do not

apply and release properly, the valve should be re-

placed.

5 Reconnect the electrical connector to the valve.