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Rear Solenoid Valves

  1. Ensure ignition is off. Using DVOM, measure resistance between terminals No. 11 and 17 of ABS ECU connector. Rear inlet solenoid valve resistance should be 3-5 ohms. If resistance is 3-5 ohms, rear inlet solenoid valve is okay; go to step 4).
  2. If resistance is not 3-5 ohms, disconnect solenoid valve block connector. Using DVOM, check for continuity in Blue/Green wire between terminal No. 17 of ABS ECU and terminal No. 3 of valve block connector. If continuity does not exist, repair open Blue/Green wire.
  3. If continuity exists, check resistance between terminals No. 3 and 7 of valve block. Rear inlet solenoid valve resistance should be 3-5 ohms. If resistance is 3-5 ohms, rear inlet solenoid valve is okay; go to next step. If resistance is not 3-5 ohms, replace valve block.
  4. Reconnect valve block connector. Using DVOM, measure resistance between terminals No. 11 and 33 of ABS ECU connector. Rear outlet solenoid valve resistance should be 5-7 ohms. If resistance is 5-7 ohms, rear outlet solenoid valve is okay; go to step 6). If resistance is not 5-7 ohms, go to next step.
  5. Disconnect solenoid valve block connector. Measure resistance between terminals No. 4 and 7 of valve block. Rear outlet solenoid valve resistance should be 5-7 ohms. If resistance is not 5-7 ohms, replace valve block. If resistance is 5-7 ohms, check for continuity in Blue/Green wire between terminal No. 33 of ABS ECU connector and terminal No. 4 of valve block connector. If continuity does not exist, repair open in Blue/Green wire. If continuity exists, go to next step.
  6. Ensure ignition is off. Connect a jumper wire between terminals No. 2, 17 and 33 of ABS ECU connector. Depress brake pedal. Rear wheels should not rotate. Turn ignition on. Rear wheels should now rotate, but brake pedal should not go to floor. If rear wheels and brake pedal do not function as described, replace valve block assembly.
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