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| Item No. | Check item | Inspection status | The display contents under normal condition |
| 15 | Illumination | Headlights: "ON" (LCD dims) | ON |
| Headlights: "OFF" (LCD illuminates at a high intensity) | OFF | ||
| 17 | Engine speed | - | Displays correct engine speed. |
| 19 | Ambient temperature sensor | - | Ambient temperature is the same as scan tool MB991958 displayed temperature |
| 20 | Air thermo sensor | - | Evaporator outlet temperature is the same as scan tool MB991958 displayed temperature. |
| 21 | Interior temperature sensor | - | Interior temperature is the same as scan tool MB991958 displayed temperature |
| 23 | Temperature setting | - | Displays the temperature, which you has set on the temperature adjusting switch, by 29 segments within a range of 18.0°C (64°F) to 32.0°C (89.6°F). The set temperature increments by 0.5°C (32.9°F) as you operate the switch by one segment. Example:
|
| 24 | ECT sensor | - | Engine coolant temperature is the same as scan tool MB991958 displayed temperature. |
| 26 | Vehicle speed | - | Displays vehicle speed. |
| 27 | A/C Compressor drive request | Compressor "ON" | ON |
| Compressor "OFF" | OFF | ||
| 28 | Air conditioning switch | Air conditioning switch "ON" | ON |
| Air conditioning switch "OFF" | OFF | ||
| 30 | PTC heater drive request | PTC heater "ON" | ON |
| PTC heater "OFF" | OFF | ||
| 34 | Idle up request | - | Displays idle-up request signal. |
| 45 | In/out select damp poten (target) | - | Displays outside/inside air selection damper target position. |
| 46 | In/out select damp potentiometer | - | Displays outside/inside air selection damper position. |
| 55 | Air outlet c/o potentiometer | - | Displays air outlet changeover damper position. |
| 56 | Air outlet c/o potentio. (Target) | - | Displays air outlet changeover damper target position. |
| 60 | Rear defogger switch | Rear window defogger switch "ON" | ON |
| Rear window defogger switch "OFF" | OFF | ||
| 61 | Pressure sensor | - | Displays refrigerant pressure. |
| 63 | Air mix potentiometer | - | Displays the air mix damper position. |
| 68 | Front blower fan | - | Displays blower motor condition. |
| 69 | Front blower fan (Target) | - | Displays blower motor target value. |
| 72 | Rear defogger relay | Rear window defogger relay: ON | ON |
| Rear window defogger relay: OFF | OFF | ||
| 91 | A/C compressor drive flag | A/C compressor drive: ON | ON |
| A/C compressor drive: OFF | OFF | ||
| 92 | Wiper operation flag | Wiper operation: "ON" | ON |
| Wiper operation: "OFF" | OFF | ||
| 93 | Ignition position information | Ignition switch: "ON" | ON |
| Ignition switch: "OFF" | OFF | ||
| 94 | Auto switch | AUTO switch on the A/C control panel: "ON" | ON |
| AUTO switch on the A/C control panel: "OFF" | OFF | ||
| 97 | Air conditioning output | Air conditioning output: "ON" | ON |
| Air conditioning output: "OFF" | OFF |
| note | *: Other items than listed above are also displayed. However, ignore them. |