1998 Chevy Blazer Windshield wipers

Tiny
MGTD
  • MEMBER
  • 1998 CHEVROLET BLAZER
  • 6 CYL
  • 4WD
  • AUTOMATIC
  • 70,000 MILES
Windshield wipers would work intermitantly, (if I banged it, or wiggled it). Now they won't work at all.
Do I need a new wiper motor, or is there an electrical
board to replace. Is there a site that has schematics?
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Monday, November 23rd, 2009 AT 11:26 AM

1 Reply

Tiny
MERLIN2021
  • EXPERT
TEST NO. 1 WIPERS DO NOT RUN IN ANY MODE 1. Turn ignition switch to RUN position, and wiper switch to HI position. Using test light connected to ground, backprobe wiper switch connector C211 terminal E4 (Yellow wire). If test light is on, go to next step. If test light is not on, repair poor connection or open in Yellow wire circuit between fuse block and wiper/washer switch. If fuse is blown, check for short to ground. 2)Turn wiper switch to HI. Using test light connected to ground, backprobe connector C211 terminal E3 (Purple wire). If test light is on, go to next step. If test light is not on, check for poor connection at wiper/washer switch connector C211 terminals E3 (Purple wire) and E4 (Yellow wire). If okay, replace wiper/washer switch. 2. Disconnect wiper motor 5-pin connector. Connect test light from ground to wiper motor connector terminal "D" (Purple wire). If test light is on, go to next step. If test light is not on, repair poor connection or open in Purple wire between wiper/washer switch and wiper motor assembly. Go to next step. 3. Connect test light front wiper motor connector terminal "C" (Yellow wire) to terminal "B" (Black wire). If test light is on, check for poor connection to wiper motor assembly. If connection is okay, replace wiper motor assembly. If test light is not on, repair open or poor connection in Black wire between wiper motor assembly and ground.
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Monday, November 23rd, 2009 AT 11:31 AM

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