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My wipers don't shut off fully, the delay mode comes on periodically even when shut off

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Symptoms: Window Wipers would not turn off. The low beam headlights functioned but the high beams were very dim, and oddly enough the passenger side headlights were dimmer than the driver side headlights. When the ignition key was turned to ACC all headlights were very dim but on even when the headlight switch was off.

Thoughts: All of these components were getting some power. The headlights and windshield wiper motor are all on the same circuit in the 560SL.

Suggested fixes: Combo switch (which is literally the stalk on the steering wheel that is used to do a "combination" of functions. On the 560SL the combo switch turns on the windshield wipers, turn signals, and engages the high-beam headlights). On mine I never removed the combo switch. I did examine it by pulling back a rubber seal on the left side of the steering wheel. The wires were bright, and the connections I could see where bright and clean. Also the combo switch itself "crisply" clicked between all functions. While this is a good suggestion, it was not the problem on my car. No the biggest clue for me were the "dim" headlights and constant on windshield wipers.

Fix that worked: It was suggested several times in this thread to clean the ground wires. On the 560SL they are small BROWN wires attached to small 7mm bolts at the front of the engine compartment just to the left and right of the radiator (hard to get eyes on, but not impossible). You should look for the small brown wires and sort of feel your way to the 7mm bolt. Once you find that bolt you will see the nut can be seen from outside of the engine compartment. After you find them the first time you will understand.

I used a small 7mm crescent wrench on the outside nut (easy to get to) and some finger finesse to get them off. Once off you will notice that the passenger side has 4 small wires terminating on a terminal and a second connection with a set of 2 wires. The passenger terminals sit one on top of the other on the ground bolt. The driver side has 3 wires in 1 connection. To be honest I can't read a wire diagram to save my life...I cleaned them all.

Keep us updated.

Posted on Nov 07, 2010

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The windshield wipers on my 2001 Chevy Venture wont work in the "delay" positions...could this be a fuse/relay problem?


Most likely a little circuit board that controls the wiper delay, or the wiper switch itself has gone bad and has an intermittent break.

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Winshield wiper delay intermitent module making noises


The wiper delay is in the steering column. It's a small box about 2 x 2 inches with a wiring harness attached. With the testing procedures I found below, you should be able to figure it out. I found wiper delays on eBay for around $10 to $20. Good luck.

WINDSHIELD WIPERS CHEROKEE, COMANCHE & WAGONEER 1. POWER INPUT Remove circuit breaker. Test battery side of circuit breaker. If battery voltage is not present, repair open to splice. Test across circuit breaker terminals. Tester reading should be zero (0) ohms. If not, replace circuit breaker. 2. GROUND Connector A unplugged. Test terminal G. Tester reading should be zero (0) ohms. If not, repair open to ground. 3. INTERMITTENT WIPERS Ignition switch in ACCY. Remove delay module and plug connectors together from the module. If wiper operate in LO and HI speed modes and mist (washer) is working, if wipers and mist operate, replace intermittent module. If not go to step 4. 4. WIPER/WASHER SWITCH Ignition in RUN, wiper switch position as indicated, back probe switch side of connector A for standard, connector B for intermittent: Test connector terminal E-wiper switch in LO and mist/intermittent. If battery voltage is not present, replace switch. test connector terminal C-wiper switch in HI. If battery voltage is not present, replace switch. Test connector terminal F-wiper switch to OFF. If battery voltage is present until wipers stop and then voltage drops to zero (0), system is working fine. If this does not occur, replace switch. 5. INTERMITTENT WIPERS Connector B unplug. Test across terminal A and D while rotating switch from minimum to maximum delay. If tester reading is not between 0-500 ohms, replace switch. Test across terminal A and G while rotating switch from minimum delay to maximum delay. If tester reading is between 0 and 500 ohms, replace wiper module. If not replace switch. 6. WIPER MOTOR Ignition in ACCY, wiper switch position as indicated, probe connector D. Test connector terminal 1. If resistance is no zero (0) ohms,repair open to ground. Test connector terminal 4-wiper switch in any position. If battery voltage is present, replace motor. if is not repair open from fuse panel. Test connector terminal 2-wiper switch in LO. If battery voltage is present, replace motor. If not , repair open from wiper switch. Test connector terminal 2-wiper switch in HI. If battery voltage is present, replace motor. If not , repair open from wiper switch. Test connector terminal 5-wiper switch OFF with voltmeter connected. If battery voltage is present until wipers stop and then voltage drops to zero, system is OK, replace motor. If not, repair open from wiper switch.

62217_jeep1_1.jpg


62217_jeep2_1.jpg

Found on the web. I hope this helps.
Rich Long

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1 Answer

Windshield washers don't always shut off


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Weres the fuse for the wipers I bought the car and the guy said he took out the fuse cuz they won't shut off

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1 Answer

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The key in your case, is was there any water on the windshield. or other debris around the sensor on the windshield....

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Sounds like all your problems stem from the wiper motor,the swich is not the likely problem but it is possible.

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Chevy has had Problems with the Wiper Motors on these Trucks for a Long time now. On some Models they Issued Recalls. On My 95' I just Replaced the Wiper Motor and have had NO Problems Since!

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