ANTI-LOCK BRAKE SYSTEM
Rear Hydraulic Modulator Inlet Valve Resistance Test
Using an ohmmeter, measure resistance between ECU connector
terminals No. 11 and 17. See Fig. 2. If resistance is 5-7 ohms, go to
next test. If resistance is not 5-7 ohms, measure between hydraulic
modulator block terminals No. 1 (Brown wire) and No. 5 (Gray wire).
See Fig. 4. If resistance is 5-7 ohms, check wiring between hydraulic
modulator and ECU for open circuit. If resistance is not 5-7 ohms,
replace hydraulic modulator.
Right Front Hydraulic Modulator Inlet Valve Resistance Test
Using an ohmmeter, measure resistance between ECU connector
terminals No. 11 and 15. See Fig. 2. If resistance is 5-7 ohms, go to
next test. If resistance is not 5-7 ohms, measure between hydraulic
modulator terminals No. 1 (Brown wire) and No. 2 (Yellow wire). See
Fig. 4. If resistance is 5-7 ohms, check wiring between hydraulic
modulator and ECU for open circuit. If resistance is not 5-7 ohms,
replace hydraulic modulator.
Left Front Hydraulic Modulator Inlet Valve Resistance Test
Using an ohmmeter, measure resistance between ECU connector
terminals No. 11 and 35. See Fig. 2. If resistance is 5-7 ohms, go to
next test. If resistance is not 5-7 ohms, measure between hydraulic
modulator terminals No. 1 (Brown wire) and No. 7 (Blue or Black/Green
wire). See Fig. 4. If resistance is 5-7 ohms, check wiring between
valve block and ECU for open circuit. If resistance is not 5-7 ohms,
replace hydraulic modulator.
Rear Hydraulic Modulator Outlet Valve Resistance Test
Using an ohmmeter, measure resistance between ECU connector
terminals No. 11 and 33. See Fig. 2. If resistance is 3-5 ohms, go to
next test. If resistance is not 3-5 ohms, measure between valve block
terminals No. 1 (Brown wire) and No. 4 (White wire). See Fig. 4. If
resistance is 3-5 ohms, check wiring between hydraulic modulator and
ECU for open circuit. If resistance is not 3-5 ohms, replace hydraulic
modulator.
Right Hydraulic Modulator Block Outlet Valve Resistance Test
Using an ohmmeter, measure resistance between ECU connector
terminals No. 11 and 34. See Fig. 2. If resistance is 3-5 ohms, go to
next test. If resistance is not 3-5 ohms, measure between hydraulic
modulator terminals No. 1 (Brown wire) and No. 3 (Green wire). See
Fig. 4. If resistance is 3-5 ohms, check wiring between hydraulic
modulator and ECU for open circuit. If resistance is not 3-5 ohms,
replace hydraulic modulator.