California Air Tools 3010 Service Manual Page 392

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15-44 STEERING
EPS (Electric Power Steering) System
When installing the band to the cover, note the following.
Pass the band through four slits [A] of the cover.
Bind the cover with the band securely.
If the EPS ECU was replaced, be sure to register the EPS
neutral position(see EPS Neutral Position Registration).
NOTE
The EPS system can not function until the neutral posi-
tion is registered in the new EPS ECU.
EPS ECU Power Supply Voltage Inspection
Remove the band and open the cover (see EPS ECU
Removal).
Visually inspect the EPS ECU connectors [A].
If the connector is clogged with mud or dust, blow it off
with compressed air.
If the connectors are normal, check the terminals of the
EPS ECU connectors.
TurnthemainswitchOFF.
Disconnect the EPS ECU connectors.
Visually inspect the terminals of the EPS ECU connectors
(main harness and EPS ECU).
If the terminals of the main harness connectors are dam-
aged, replace the main harness.
If the terminals of the EPS ECU connectors are damaged,
replace the EPS ECU.
If the terminals are normal, measure the power supply
voltage of the EPS ECU.
NOTE
Be sure the battery is fully charged.
Set the hand tester [A] to the DC 25 V range and connect
it to the main harness connectors [B].
Special Tool - Hand Tester: 57001-1394
EPS ECU Power Supply Voltage Inspection
Connections:
(I) Hand Tester (+) WLeadTerminal[C]
Hand Tester (–) Battery (–) Termin al
(II) Hand Tester (+) BR Lead Terminal [D]
Hand Tester (–) Battery (–) Termin al
Main Switch OFF:
Connection (I): Battery Voltage
Connection (II): 0 V
Main Switch ON:
Both Connections: Battery Voltage
If the reading is out of the specification, check the follow-
ing.
40 A EPS Fuse (see Fuse Inspection)
7.5 A EPS Fuse (see Fuse Inspection)
Power Source Wiring and Ground Wiring (Refer to the
next wiring diagram.)
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