Hydraulic Cooling Fan Fluid Reservoir: Testing and Inspection

FLUID LEVEL INSPECTION
1. Keep vehicle level.
2. Inspect fluid level.
(a) Using SST 09843 - 18020, connect terminals OP1 and E1 of the DLC1.

NOTE: When terminals OP1 and E1 are connected, the circuit of the ECT sensor is grounded, fixing the cooling fan speed at approx. 1,100 RPM. (Fail-safe operation occurs.)

(b) Keep the engine speed at 2,000 RPM until the fluid temperature reaches the specified temperature of 70 - 90° C (158 - 195° F).
(c) Check that there is no foaming and emulsification of the fluid in the reservoir tank.
(d) Measure the fluid level with the engine running.
(e) Stop the engine, and measure the fluid level.

Checking Hydraulic Fluid Level:

(f) Subtract (d) from (e).
Maximum stroke: 5 mm (0.20 inch)
(g) Check the fluid level. If low, add ATF DEXRON II fluid.

NOTE: Check that fluid level is with in the "HOT" level on reservoir tank. If the fluid is cold, check that it is within the "COLD" level on the reservoir tank.

(h) Remove the SST from the DLC1.