My 1999 XJR wipers come on and cycle about 10 times then stop anywhere on the windshield. You can keep turning them on but they stop by themselves and never park. Any ideas?

When the windshield wiper / washer switch is turned to the OFF position while the wiper motor is somewhere in mid-cycle, the wiper motor module will continue to operate the wiper motor until the wipers reach the park position. If the ignition is turned off while the wipers are in mid-cycle, the wipers will stop immediately where they are. The wipers will park the next time the ignition is cycled to the ON position.

Schematic Reference: Wiper/Washer Schematics


1

Did you review the Wiper/Washer System Description and Operation and perform the necessary inspections?
Go to Step 2
Go to Symptoms - Wiper/Washer Systems

2

1. Turn the ignition ON.
2. Turn the windshield wiper/washer switch OFF.

Are the windshield wipers always on?
Go to Step 3
Go to Testing for Intermittent Conditions and Poor Connections in Wiring Systems

3

Disconnect the windshield wiper/washer switch connector.
Are the windshield wipers always on?
Go to Step 4 if yes
Go to Step 7 if no

4

1. Disconnect the windshield wiper motor connector.
2. Test the windshield wiper switch signal 1 circuit for a short to voltage. Refer to Circuit Testing and to Wiring Repairs in Wiring Systems.

Did you find and correct the condition?
Go to Step 11
Go to Step 5

5

Test the windshield wiper switch signal 2 circuit for a short to voltage. Refer to Circuit Testing and to Wiring Repairs in Wiring Systems.
Did you find and correct the condition?
Go to Step 11
Go to Step 6

6

Test the windshield wiper motor high speed circuit for a short to voltage. Refer to Circuit Testing and to Wiring Repairs in Wiring Systems.
Did you find and correct the condition?
Go to Step 11
Go to Step 9

7

Inspect for poor connections at the windshield wiper/washer switch. Refer to Testing for Intermittent Conditions and Poor Connections and to Connector Repairs in Wiring Systems.
Did you find and correct the condition?
Go to Step 11
Go to Step 8

8

Replace the windshield wiper/washer switch. Refer to Windshield Wiper and Washer Switch Replacement - On Vehicle in Steering Wheel and Column.
Is the repair complete?
Go to Step 11
--

9

Inspect for poor connections at the windshield wiper motor. Refer to Testing for Intermittent Conditions and Poor Connections and to Connector Repairs in Wiring Systems.
Did you find and correct the condition?
Go to Step 11
Go to Step 10

10

Replace the windshield wiper motor. Refer to Windshield Wiper Motor Replacement .
Is the repair complete?
Go to Step 11
--

11

Operate the system in order to verify the repair.
Did you correct the condition?
The Wiper / Washer System consists of the following components:
?€¢
Windshield wiper / washer switch

?€¢
Windshield wiper system module / motor

?€¢
Windshield washer fluid pump

?€¢
Windshield washer fluid level switch

?€¢
Instrument panel cluster (IPC)

?€¢
ACC 15-amp fuse

?€¢
WSW 30-amp fuse

If your saying where IG stops is you turn them off then your wiper motor control board is bad

As Per Service Bulletin 10-011

SYMPTOM
The windshield wipers intermittently come on by
themselves or they cannot be turned off.

CORRECTIVE ACTION
Replace the wiper/washer switch.

PARTS INFORMATION
Wiper Switch Assembly: P/N 35256-STX-305

The intermittent function for the wipers has a variable resistor that controls the timing of the wipers in this mode. Replacement of the wiper switch will resolve this issue. Over time they do become worn, and do not make contact during the entire wiper cycle.

time for a new wiper motor try an auto parts store for prices hope this helps

2002 Ford F-250 Windshield Wiper Motor Removal & Installation 1. Turn the ignition switch to the ON position. Turn the ignition switch ON until the wiper blades are straight up, then turn the ignition switch OFF. 2. Disconnect the negative battery cable. 3. Remove the right-hand and left-hand windshield wiper arm and blade assemblies. 4. Remove the cowl top vent panels. 5. Detach the electrical hardness connector at the windshield wiper motor assembly. 6. Remove 3 wiper motor (module assembly) retaining bolts and remove the module assembly from the vehicle. 7. Remove the wiper linkage retaining bolt and remove the linkage from the wiper motor. 8. Remove 3 retaining nuts and remove the windshield wiper motor To install; 9. Place the windshield wiper motor in position and install 3 retaining nuts. Tighten to 10-12 ft. lbs. (12-17 Nm). 10. Connect the wiper linkage to the windshield wiper motor and install the retaining bolt. Tighten the bolts to 14 ft. lbs. (20 Nm). 11. Place the wiper motor (module assembly) in position and install 3 retaining bolts. Tighten the bolts to 6 ft. lbs. (9Nm). 12. Install the electrical hardness connector to the windshield wiper motor. 13. Connect the negative battery cable. 14. Allow the windshield wiper motor to cycle several times while checking for proper wiper motor operation. 15. Turn the windshield wiper motor to the OFF position to park the wiper motor in the park position. 16. Install the cowl top vent panels. 17. Install the wiper arm and blade assemblies. Install the retaining nuts and tighten to 22-29 ft. lbs. (30-40 Nm). 18. Connect the negative battery cable. 19. Check the windshield wiper motor for proper operation and the wiper arms for adjustment.

Your wipers are on the "delay" setting. Make sure they are ALL the way OFF.

Remove arms again, make sure motor in park, then attach wipers on bottom of windshield where they set normally when parked.

I have a 1999 XJ8. Same setup as yours, with very minor differences. I had the same problem, turned out NOT to be fuse, OR bad relays, OR wiper motor, OR Body Processor Module. It was simply a loose connection at the body processor module below the Glovebox. I Literally jiggled the wires, and it started working again, and has been ever since. I have the Shop Manual, Technical ability, and Tools available to test all of the circuits involved, and went forth with printing out the wiring diagrams, and step by step eliminated each, until I decided to give the connection a jiggle, JUST BEFORE replacing the Body Processor Module (which would have been expensive)

Test 1:
Try the jiggle trick. Should be able to access harness just below, and behind the left of the glovebox. touch around up there, but don't be a brute, as you MAY break stuff.

Test 2:
Check Fuse under hood, (#22) Should be a 30A fuse

Test 3:
Swap the relays located on the drivers side, just behind the radiator. One is for Wiper motor run, the other is for wiper motor high speed.

Test 4: Jumper Pin 3 & 5 on the LEFT relay (drivers left) (please remove relay first). This should turn the wipers on, regardless of whether or not the computer is telling it to run. If wiper does not turn on, check fuse, or replace wiper motor.

That's all I've got.... Hopefully this works for you.

We had the same problem and sometimes they wouldn't turn off. The intermittent wipers were random. We replaced the wiper motor. Be sure to get the motor with two balls on the wiper shaft (one for each wiper arm). If you can't find it, you'll have to change the part out on the new motor. Keep the wiper arms in the same location on removal, or it will jam and you'll have to start over.