Inspection Mode 1
| Code | Description & trouble position | Note |
|---|---|---|
| U0074 | CONTROL MODULE COMMUNICATION BUS "BODY-CAN" OFF | - |
| U0100 | LOST COMMUNICATION WITH ECM/PCM "A" | - |
| U0101 | LOST COMMUNICATION WITH TCM | - |
| U0122 | LOST COMMUNICATION WITH VEHICLE DYNAMICS CONTROL MODULE | - |
| U0155 | LOST COMMUNICATION WITH INSTRUMENT PANEL CLUSTER (IPC) CONTROL MODULE | - |
| U0401 | INVALID DATA RECEIVED FROM ECM/PCM "A" | - |
| U1140 | LOST COMMUNICATION WITH BODY CONTROL MODULE BODY-CAN | - |
| U1422 | INVALID DATA RECEIVED FROM BODY CONTROL MODULE BODY-CAN | - |
| B2271 | IGN RELAY CONTROL CIRCUIT | - |
| B2274 | ACC RELAY CONTROL CIRCUIT | - |
| B2275 | ENGINE START REQUEST CONTROL CIRCUIT | - |
| B2276 | ACC RELAY OFF SIGNAL | - |
| B2277 | SUBMERGING CIRCUIT | - |
| B227B | PUSH ENGINE START SWITCH INPUT PERFORMANCE | - |
| B227C | P RANGE SIGNAL PERFORMANCE | - |
| B2285 | STEERING LOCK POSITION SIGNAL CORRELATION | - |
| B2286 | ENGINE SPEED SIGNAL (WITHOUT Auto Start Stop) | - |
| B228A | ENGINE SPEED SIGNAL (WITH Auto Start Stop) | - |
| B2781 | STEERING LOCK Control Module CONTROL CIRCUIT | - |
| B2782 | STEERING LOCK DRIVE REQUEST SIGNAL CORRELATION | - |
| B2785 | LIN COMMUNICATION | - |
| B2786 | STEERING LOCK Control Module COMMUNICATION | - |
| B2788 | IGN SIGNAL CORRELATION (STEERING LOCK Control Module) | - |
| B2789 | ID CODE BOX COMMUNICATION | - |
| B278B | CAN CONTROL MODULE STUCK | - |
| B278D | ID CODE BOX JUDGMENT CIRCUIT | - |
| B2793 | BACKUP POWER | - |
Diagnostic procedure:
- Check that the battery voltage is 12 V or more and fuel remains approx. half [20 - 40 L (5.3 - 10.6 US gal, 4.4 - 8.8 Imp gal)].
- Perform the clear memory for «Keyless Access with Push Button Start» using the Subaru Select Monitor. Refer to KEYLESS ACCESS WITH PUSH BUTTON START SYSTEM (DIAGNOSTICS)>CLEAR MEMORY .
- Read the DTC of «Keyless Access with Push Button Start» using Subaru Select Monitor and check that the DTC is not displayed. Refer to KEYLESS ACCESS WITH PUSH BUTTON START SYSTEM (DIAGNOSTICS)>DIAGNOSTIC TROUBLE CODE (DTC) .NOTE: If the DTC is displayed on the screen, the trouble is still present. Perform the diagnosis for the displayed DTCs. After solving the DTC, repeat from step 1.
- Start the engine, and let it idle for 40 seconds or more.
- Read the DTC of «Keyless Access with Push Button Start» using Subaru Select Monitor and check that the DTC is not displayed. Refer to KEYLESS ACCESS WITH PUSH BUTTON START SYSTEM (DIAGNOSTICS)>DIAGNOSTIC TROUBLE CODE (DTC) .
NOTE:
If the DTC is displayed on the screen, the trouble is still present. Perform the diagnosis for the displayed DTCs. After solving the DTC, repeat from step 1.