MSS60 Error: 2742, P0135
		
		
		
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2742 - P0135
| Information saved in | DME | 
| Fault code | 2742 - P0135 | 
| Fault text | Oxygen sensor heater resistance diagnosis before cat. converter, bank 1 | 
| Fault description | O2 Sensor Heater Circuit (Bank 1 Sensor 1) | 
| Condition for fault identification | Test condition: The upper or lower threshold of the resistance values has been violated, above/below 6.0 ohms (K_LSHVK_DIAG_RU) 14.5 ohms (K_LSHVK_DIAG_RO) | 
| Terminal condition: Engine running | |
| Voltage condition: Battery voltage > 9V (k_ed_ubmin) | |
| Condition for fault memory entry | min. K_LSHVK_DIAG_ANZ_MESS (100) valid calculations of heater resistance - roughly.1.5 sec. | 
| Action in service | 1. DME software release must be more recent than 07-06-510, fix incorporated since 07-09-521 | 
| 2. Check plug, wiring harness on pre-cat oxygen sensor LSVK B1, | |
| 3. If OK, replace oxygen sensor | |
| Fault effect and breakdown warning | MIL lamp on after engine runs 2x /Small influence on drivability | 
| Driver information | Warning light: MIL | 
| Service instruction | None | 
| MIL after engine runs 2x |