u1184 scp j1850 invalid or missing data for window wiper washer

OBD2 Code: U1184

Description: SCP (J1850) Invalid or Missing Data for Window Wiper Washer

Definition: This code indicates that there is a communication issue on the SCP (Standard Corporate Protocol) network, specifically related to the window wiper washer system. The vehicle’s control modules are not receiving valid data from the components responsible for operating the windshield wipers and washers.

: SCP J1850 Invalid or Missing Data for Window Wiper Washer – Severity: Medium

Common Causes

Common causes:
– Faulty window wiper/washer control module
– Wiring issues in the window wiper/washer system
– Communication errors between modules on the SCP (J1850) network

Common Misdiagnosis

OBD2 Code: U1184
Description: SCP (J1850) Invalid or Missing Data for Window Wiper Washer
Common Misdiagnosis: Faulty wiper motor or washer pump when the issue is actually related to a communication error in the vehicle’s network.

Common Diagnostic Steps

OBD2 Code: U1184
Description: SCP (J1850) Invalid or Missing Data for Window Wiper Washer

1. Check the vehicle’s battery and charging system to ensure proper voltage levels.
2. Inspect all related fuses and relays for the window wiper washer system.
3. Examine the wiring harness and connectors associated with the window wiper washer circuit for any signs of damage, corrosion, or disconnection.
4. Use a scan tool to check for any additional trouble codes that may be present in other modules which could affect communication on the SCP (J1850) network.
5. Test the functionality of the window wiper washer switch and motor to ensure they are operating correctly.
6. If equipped, verify that any aftermarket devices connected to the SCP (J1850) network are not causing interference or communication issues.
7. If necessary, consult the vehicle’s service manual for specific diagnostic procedures related to this code and follow manufacturer-recommended steps.