Hey everybody,
Got a 2018 cascadia daycab that came in with no wipers or turn signals. Found the wiper motor disconnected which I assume was done by the driver, upon connecting it the wipers turned on high and wouldn’t shut off as If the wiper stalk switch was disconnected. After hitting the battery cutoff switch and resetting the wipers didn’t come back on but now they wouldn’t turn on. There was a code for Aux Micro controller on the SSAM and wiper motor blockage. I swapped the wiper stalk switch and there was no difference. Swapped the SSAM with another unit and no difference either until I swapped back and then the switch began to work. But now it only works on all functions except for high, on high the wiper stops wherever. Giving power from the SSAM pin to wiper high the motor works fine, but the SSAM only gives ground on that pin when the switch is active whereas the low works correctly and gives power. Using IO controls on diagnostic link the wiper high function registers as on when the switch is activated but no movement from wiper motor. Checked continuity from stalk switch to SSAM and all checks out. And I know the motor works on high from when I give it direct power. Also randomly the tail lights stopped working and come and go with the signal lights. No power from the tailight output pins but lights come on under direct power. It looks like it the Sam module but it’s already been swapped, idk what else to check.
2018 Cascadia, no high wiper function pls help
Discussion in 'Heavy Duty Diesel Truck Mechanics Forum' started by wtokhi, Mar 24, 2024.
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