DTC U1190: No receive fault detect signal: Diagnosis

WARNING: This page is about a different car, the 2014 Mitsubishi Outlander. However, it is still accessible from the selected car via links, so may be relevant.

STEP 1. Using scan tool (M.U.T.-III), diagnose the CAN bus line
CAUTION: To prevent damage to scan tool (M.U.T.-III), always turn the ignition switch to the "LOCK" (OFF) position before connecting or disconnecting scan tool (M.U.T.-III).
1. Connect scan tool (M.U.T.-III). Refer to "HOW TO CONNECT THE SCAN TOOL (M.U.T.-III) ."
2. Turn the ignition switch from "LOCK" (OFF) position to "ON" position.
3. Diagnose the CAN bus line.
4. Turn the ignition switch from "ON" position to "LOCK" (OFF) position.
Q: Is the CAN bus line found to be normal?
1. YES: Go to Step 2.
2. NO: Repair the CAN bus line. (Refer to DIAGNOSIS ).
STEP 2. Recheck for diagnostic trouble code.
Recheck if the DTC is stored.
1. Erase the DTC.
2. Turn the ignition switch from "LOCK" (OFF) position to "ON" position.
3. Check if the DTC is stored.
4. Turn the ignition switch from "ON" position to "LOCK" (OFF) position.
Q: Is the DTC stored?
1. YES: Go to Step 3.
2. NO: It can be assumed that this malfunction is intermittent. Refer to HOW TO COPE WITH INTERMITTENT MALFUNCTIONS .
STEP 3. Recheck for diagnostic trouble code.
Check again if the DTC is stored.
1. Connect scan tool (M.U.T.-III) to the data link connector
2. Turn the ignition switch from "LOCK" (OFF) position to "ON" position.
3. Check if the DTC is stored.
4. Turn the ignition switch from "ON" position to "LOCK" (OFF) position.
Q: Is the DTC stored?
1. YES: Replace the ETACS-ECU, and then go to Step 4.
2. NO: The diagnosis is complete.
STEP 4. Recheck for diagnostic trouble code.
Check again if the DTC is stored in the occupant classification-ECU.
1. Erase the DTC.
2. Turn the ignition switch from "LOCK" (OFF) position to "ON" position.
3. Check if DTC is stored.
4. Turn the ignition switch to the "LOCK" (OFF) position.
Q: Is the DTC stored?
1. YES: Replace the front seat cushion cover and pad assembly (Refer to FRONT SEAT ASSEMBLY ).
2. NO: There is an intermittent malfunction such as poor engaged connector(s) or open circuit (Refer to HOW TO COPE WITH INTERMITTENT MALFUNCTION ).