VALVE TESTS

TM 9-2320-303-24-1

ANTI-LOCK BRAKE SYSTEM TROUBLESHOOTING AND TESTING - CONTINUED

0019 00

VALVE TESTS

ABS Modulator Valve:

(1)

Measure the resistance across each valve solenoid coil terminal and ground on the ABS valve to ensure 4.0

to 8.0 ohms. See Fig 29.

Pause of 1.5 Seconds

Pause of 4 Seconds

Fig 29. ABS Modulator Valve

(2)

If the resistance is greater than 8.0 ohms, clean the electrical contacts in the solenoid. Check the resistance

again.

(3)

To check the cable and the ABS valve as one unit, measure the resistance across the pins on the ECU con-

nector of the harness. Check the wiring diagrams of the system you are testing. See Figs 30, 31, 32, and 33.

0019 00-23