Wipers Do Not Come on When Switch Is In Delay Position
1. Disconnect 25-way connector (blue) from the body controller.2. Place wiper control switch in maximum DELAY position.
3. Connect positive lead of voltmeter to pin 9 of connector (blue) and negative lead to the good ground.
a. If voltmeter reads 0, check control switch and wiring for an open circuit.
b. If voltmeter reads 10 to 15 volts, proceed to step 4.
4. Connect positive lead of voltmeter to pin 22 of blue connector and negative lead to a good ground.
a. If voltmeter reads 0, check fuses and wiring for an open circuit.
b. If voltmeter reads 10 to 15 volts, reconnect body controller and proceed to step 5.
5. Connect positive lead of voltmeter to pin 24 of blue connector and negative lead to the metal case of the body controller. Disconnect wiring harness from wiper motor. Set control switch to the minimum delay mode.
a. If voltmeter reads 0, check wiring from the intermittent wipe switch to body controller for an open circuit.
b. If voltmeter reads 10 to 15 volts, proceed to step 6.
6. Connect voltmeter to pin L of the Intermittent wiper switch. Place intermittent wiper switch in the Max. Delay position.
a. If voltmeter reads zero volts, change the intermittent wiper switch.
b. If voltmeter reads 10-15 volts, check the wiring. harness from the intermittent wiper switch to the wiper motor for an open circuit.
7. If all tests above have been performed and the problem was not found, replace the control unit.