Input Displays
When trouble shooting a malfunction, the ECM, BCM, or IPC input display can be used to determine if switched inputs are properly interpreted. When one of the input tests is selected, the state of that device is displayed as "HI" or "LO". Basically, "HI" or "LO" represent input terminal voltage for that circuit.
Also, the display indicates if input changed state since it was last tested. If a change occurred, an "X" will appear next to the HI - LO indicator. If a change did not occur, an "O" will remain displayed. The "X" will only appear once per selected input.
BCM INPUT DISPLAY CODES
| Code | Circuit Affected |
|---|---|
| BI01 | Courtesy Light Panel Switch |
| BI02 | Park Light Switch |
| BI03 | Driver Door Ajar Switch |
| BI04 | Passenger. Door Ajar Switch |
| BI05 | Door Jamb Switch |
| BI06 | Door Handle Switch |
| BI08 | Low Refrigerant Pressure Switch |
| BI09 | Washer Fluid Level Switch |
| BI10 | Low Coolant Level |
| BI16 | Key-In Ignition |
| BI18 | Brake Pressure Switch |
| BI21 | Low Brake Fluid |
| BI22 | Parking Brake Switch |
| BI24 | Reverse Gear Switch |
| BI25 | Seat Belt Switch |
| BI51 | Generator Feedback |
| BI71 | Cruise Control Brake Switch |
| BI75 | Cruise Control On/Off Switch |
| BI76 | Cruise Control Set/Coast Switch |
| BI77 | Cruise Control Resume/Accel Switch |
| BI78 | Headlight Switch |
| BI79 | High Beam Switch |
| BI82 | Twilight Enable Switch |
| BI83 | Fog Light Switch |
| BI88 | Low Oil |
IPC INPUT DISPLAY CODES
| Code | Circuit Affected | ||
|---|---|---|---|
| II01 | (1) Fuel Range | ||
| II02 | (1) Fuel Rest | ||
| II03 | (1) Fuel Economy | ||
| II04 | (1) Fuel Used | ||
| II05 | English-Metric | ||
| II06 | System Monitor | ||
| II07 | (1) Trip Odometer | ||
| II08 | (1) Expanded Fuel Gauge | ||
| II09 | Tachometer | ||
| II10 | Trip Reset (Toronado) | ||
| II10 | Rear Defog Switch (Reatta & Riviera) | ||
| II11 | (1) Instant Economy Switch (Toronado) | ||
| II11 | Front Defrost Switch (Reatta & Riviera) | ||
| II12 | (1) Engine Data | ||
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