C-02, Control Unit Hard- and Software
| C-02, Control Unit Hard- and Software |
|---|
| Test | Work Order Description | Nominal Value |
| T01 | Check: Diagnostic Trouble Code stored | |
| Is the following Diagnostic Trouble Code stored? 52 RE-PROGRAM PROGRAM MEMORY | |
| Yes: T02 | No: T05 |
| T02 | Check: Component | |
| Check the following component for proper operation: Diagnostic tester | Test okay? |
| Yes: T03 | No: E04 |
| T03 | Check: Circuit Interruption of Ground Circuit | |
| Disconnect wiring harness connector from: G1 Battery Terminal 31/B- Measure resistance between the following terminals: H1 Radio Wiring Harness Connector (wiring harness side) Terminal 4 & Ground | less than 2 Ohm |
| Yes: T04 | No: E03 |
| T04 | Check: Programming | |
| Connect wiring harness connector to: G1 Battery Terminal 31/B- Repeat programming Note: The programming of channel loading for the radio CAR 300 is only possible from Supplier Part Number 90533422. | Programming okay? |
| Yes: E01 | No: E02 |
| T05 | Check: Diagnostic Trouble Code stored | |
| Following trouble codes stored: 51, 55 | |
| Yes: E02 | No: T06 |
| T06 | Check: Adjustment | |
| Ignition ON Repeat programming Diagnostic Tester Data List Parameter RADIO DISPLAY TUNE STEP LOGIC SECURITY CODE IGNITION LOGIC Note: To program the radio display, switch off the radio, press station keys 4 and 6 simultaneously, and hold the keys down while you switch the radio on again. Hold the keys until the confirmation signal sounds. To program the step logic of the tuning function, switch off the radio, press station keys 2 and 5 simultaneously, and hold the keys down while you switch the radio on again. Hold the keys until the confirmation signal sounds. To program the ignition logic of the tuning function, switch off the radio, press station keys 1 and 3 simultaneously, and hold the keys down while you switch the radio on again. Hold the keys until the confirmation signal sounds. | Programming okay? |
| Yes: E01 | No: E02 |
| C-02, Control Unit Hard- and Software |
|---|
| Result | Cause Of Fault |
| E01 | Previous programming was faulty |
| |
| E02 | Defective component: H1 Radio |
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| E03 | Repair the concerned circuit/component. |
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| E04 | Defective component: Diagnostic tester |
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