Trip computer (TRIP) diagnosis troubleshooting - AD54.50-P-5000GH
MODEL 163 with CODE (245) Trip computer
| Connection and use of test equipment | AD00.00-P-1000AZ | ||
| Trip computer diagnosis, basic knowledge | AD54.50-P-2000GH | ||
| Explanatory notes on diagnosis troubleshooting chart, TRIP | AD54.50-P-5000-01GH | ||
| Troubleshooting | |||
| Complaint | Possible cause | Notes | Remedy/Test step |
| Trip computer control module (N41) completely inoperative | Voltage supply, trip computer control module (N41) | AD54.50-P-6000-01GH | |
| Only date function faulty | If clock in instrument cluster is also faulty: Instrument cluster (A1) otherwise: N41 |
Synchronization signal for advancing the date comes from the instrument cluster (A1) via CAN data bus. | AD54.30-P-1000GHZ A1 N41 |
| Only journey time function faulty | N41 | This function is performed completely within the trip computer control module (N41). | N41 |
Following functions faulty:
|
If vehicle speed display in instrument cluster (A1) is also faulty: Traction system control module (N47) otherwise: Injection system control module (N3) CAN data buses |
The signals required come from the traction system control module (N47) and from the injection system control module (N3) via CAN data bus. | AD42.35-P-1001BZ
Read out wheel speed signals (actual values) at A1 or N47 with HHT. AD07.61-P-1000AZ Read out fuel consumption signal (actual value) at N3 with HHT. AD54.50-P-6000-02GH |
Only
function
|
N41 | N41 | |
| Only range function faulty | If fuel display in instrument cluster (A1) is also faulty: Fuel gauge sensor (M3/3b1), A1 otherwise: N41 |
The signals required come from the instrument cluster (A1), from the traction system control module (N47) and from the injection system control module (N3) via CAN data bus. | AD54.30-P-1000GHZ Read out actual value of fuel gauge sensor at A1 with HHT. N41 |
| Display of range (Engl. FUEL) flashes , although the fuel tank (due to refuelling) is filled significantly above reserve. | If fuel display in the instrument cluster (A1) is also faulty: Fuel gauge sensor (M3/3b1), A1 otherwise: N41 |
Read out actual value of fuel gauge sensor at A1 with HHT. N41 | |
| Display of range (Engl. FUEL) does not flash, although the fuel tank level is clearly in the reserve range. | If fuel display in the instrument cluster (A1) is also faulty: Fuel gauge sensor (M3/3b1), A1 otherwise: N41 |
AD54.30-P-1000GHZ Read out actual value of fuel gauge sensor at A1 with HHT. N41 |