9D
Wiper Circuit Inspection
Front Wiper Intermittent Circuit
1) Remove wiper and washer switch referring to Wiper and Washer Switch Removal and Installation .
2) Turn the front wiper switch to INT position.
3) Connect battery positive terminal to terminal “B” and battery negative terminal to terminal “EW”.
4) Connect voltmeter positive lead to terminal “+1” and negative lead to battery negative terminal.
Check that the voltmeter indicates the battery voltage (10 – 14 V).
5) Connect terminal “S” and terminal “B” for 5 sec. or move by a jumper wire.
6) Disconnect end of the jumper wire from terminal “B”.
7) Connect disconnected jumper wire end to terminal “EW”, then check that voltage between terminal “+1” and terminal “EW” changes as shown below.
If check result is not satisfied, replace switch.
[A]: LH steering vehicle
[B]: RH steering vehicle
Rear Wiper Intermittent Circuit
1) Disconnect negative (–) cable from battery.
2) Remove rear wiper intermittent relay (1) from vehicle.
2. Circuit fuse box
3) Check INT circuit as follows.
a) Connect battery positive (+) terminal to “h” terminal and battery negative (–) terminal to “e” terminal.
b) Check that voltage between “b” terminal and “e” terminal changes from 0 V to battery voltage when connecting battery positive (+) terminal to “g” terminal.
If check result is not satisfied, replace relay.
c) Connect battery positive (+) terminal to “c” terminal.
d) Check that voltage between “b” and “e” terminals changes as shown below.
If check result is not as specified, replace relay.
1. Rear wiper intermittent relay
4) Check WIPER AND WASH circuit as follows.
a) Connect battery positive (+) terminal to “h” terminal and battery negative (–) terminal to “e” terminal.
b) Check that voltage between “b” terminal and “e” terminal changes as shown below when connecting battery positive (+) terminal to “d”.
If check result is not satisfied, replace relay.
c) Check that voltage between “b” terminal and “e” terminal changes as shown below when disconnecting battery positive (+) terminal from “d”.
If check result is not satisfied, replace relay.
1. Rear wiper intermittent relay
Washer Linked Circuit
1) Remove wiper and washer switch referring to Wiper and Washer Switch Removal and Installation .
2) Make sure that front wiper switch is at OFF position.
3) Connect battery positive terminal to terminal “B” and battery negative terminal to terminal “EW”.
4) Connect voltmeter positive lead to terminal “+1” and negative lead to battery negative terminal.
5) When front washer switch is ON, check that voltage change as shown in the table.
[A]: LH steering vehicle
[B]: RH steering vehicle