Accumulator Solenoid Valve Circuit

SUSPENSION CONTROL: KINETIC DYNAMIC SUSPENSION SYSTEM: Accumulator Solenoid Valve Circuit

Accumulator Solenoid Valve Circuit

DESCRIPTION

By receiving signals from the stabilizer control ECU, the accumulator solenoid valve closes to cut the fluid flow to the accumulator (the valve closes when current is applied to the solenoid valve and opens when current is not applied).

WIRING DIAGRAM





INSPECTION PROCEDURE
HINT: The following procedures confirm that the ECU does not apply current to the accumulator solenoid valves when the vehicle is stopped.

PROCEDURE

1. CHECK HARNESS AND CONNECTOR (STABILIZER CONTROL ECU - ACCUMULATOR SOLENOID VALVE)




(a) Disconnect the S34 connector from the stabilizer control ECU.
(b) Disconnect the S33 connector from the accumulator solenoid valve.
(c) Measure the voltage according to the value(s) in the table below.
Standard voltage:






NG -- REPAIR OR REPLACE HARNESS OR CONNECTOR
OK -- Continue to next step.
2. INSPECT STABILIZER CONTROL ECU (SLAU, SLAL TERMINALS)




(a) Connect the S34 connector to the stabilizer control ECU.
(b) Measure the voltage according to the value(s) in the table below.
Standard voltage:






NG -- REPLACE STABILIZER CONTROL ECU
OK -- PROCEED TO NEXT CIRCUIT INSPECTION SHOWN IN PROBLEM SYMPTOMS TABLE