Danger | Risk of death. Death may occur if body parts are drawn into rotating vehicle parts. | Do not insert your hand into rotating parts. Wear closed and snug-fitting work clothes. Secure area of rotating vehicle components against unauthorized access. | |
Danger | Risk of death when working on component parts and systems with U >= 30 V alternating voltage (AC) or U >= 60 V direct voltage (DC) | Do not touch damaged or defective live component parts and lines or non-insulated electrical connections and lines. | |
Danger | Risk of explosion caused by fuel igniting, risk of poisoning caused by inhaling and swallowing fuel as well as risk of injury to eyes and skin caused by contactwith fuel. | No fires, sparks, open flames or smoking. Pour fuels into suitable and appropriately marked containers only. | |
Topical note | Notes on avoiding damage to ignition system | Engine 120mit Benzin-Einspritzanlage LH | |
Connecting hand-held tester (HHT), reading fault memory | |||
Gasoline injection and ignition system (ME-SFI) - Diagnosis - Previous knowledge | Check. regulate engine | ||
Notes on ME-SFI diagnostic trouble code memory | |||
| Reading out the fault code with the pulse counter is not possible | ||
| Characters for emissions-relevant faults which lead to the actuation of the CHECK-ENGINE indicator lamp in USA vehicles. This is only actuated when the tests have been carried out and faults have been detected. | ||
| Ignition ON | ||
Fault memory | |||
Fault code | Fault text | Possible cause/note | Remedy |
No fault detected | Depending on complaint, perform complete ME-SFI electrics test | ||
| Purge system leaky (function chain) | ||
Model 129 as of 9/97 , model 140 | |||
Purge system leaky (function chain) fault code description, ME-SFI | Model 129 as of 9/97 , model 140 | ||
| Right purging nonfunctional | ||
Purging nonfunctional fault code description, ME-SFI | |||
| Purge system slightly leaky | Model 129 as of 9/97 , model 140 | |
Purge system leaky (function chain) fault code description, ME-SFI | Model 129 as of 9/97 , model 140 | ||
| Right purge control valve (Y58/3) | ||
Purge control valve fault code description, ME-SFI | |||
| A activated charcoal canister shutoff valve (function chain) | ||
Model 129 as of 9/97 , model 140 | |||
Model 129 as of 9/97 , model 140 | |||
B activated charcoal canister shutoff valve (Y58/4) | Model 129 as of 9/97 , model 140 | ||
Activated charcoal canister shutoff valve fault code description, ME-SFI | Model 129 as of 9/97 , model 140 | ||
| Tank pressure sensor (B4/3) | Model 129 as of 9/97 , model 140 | |
Activated charcoal canister clogged | |||
Tank pressure sensor fault code description, ME-SFI | Model 129 as of 9/97 , model 140 | ||
Purging monitoring pressure sensor (B4/4) | Model 129 up to 8/97 | ||
Purging monitoring pressure sensor fault code description, ME-SFI | Model 129 up to 8/97 | ||
| Purge system highly leaky | Model 129 as of 9/97 , model 140 | |
Model 129 as of 9/97 , model 140 | |||
Purge system leaky (function chain) fault code description, ME-SFI | Model 129 as of 9/97 , model 140 | ||
| Fuel level too low | Top up fuel | |
| A front left speed signal | Up to 5/98 | |
Up to 5/98 | |||
Speed signal fault code description, ME-SFI | Up to 5/98 | ||
| Idle speed control | At right ME-SFI [ME] control unit (N3/12) | |
At left ME-SFI [ME] control unit (N3/11) | |||
Idle speed control fault code description, ME-SFI | |||
| Power supply at ME-SFI [ME] control unit (N3/11) or (N3/12) | ||
Control unit power supply fault code description, ME-SFI | |||
| Cruise control switch (S40) | ||
| CAN of ESP | ||
CAN malfunctioning fault code description, ME-SFI | |||
| A left (N3/11) or right (N3/12) ME-SFI [ME] control unit | N3/11 or N3/12 | |
| Left (N3/11) or right (N3/12) ME-SFI [ME] control unit | N3/11 or N3/12 | |
| Read out automatic transmission control unit fault memory | ||
Gear implausible or transmission leaky fault code description, ME-SFI | |||
Command shift valve jamming in pressure position fault code description, ME-SFI | |||
| Read out automatic transmission control unit fault memory | ||
EGS control unit fault code description, ME-SFI | |||
Valve supply voltage fault code description, ME-SFI | |||
| Read out automatic transmission control unit fault memory | ||
Rpm sensor supply voltage and function fault code description, ME-SFI | |||
| Read out automatic transmission control unit fault memory | ||
CAN fault detection fault code description, ME-SFI | |||
| Read out automatic transmission control unit fault memory | ||
Gear comparison negative (several times) fault code description, ME-SFI | |||
| Read out automatic transmission control unit fault memory | ||
Torque converter lockup clutch fault code description, ME-SFI | |||
| Read out automatic transmission control unit fault memory | ||
Torque converter lockup PWM solenoid valve fault code description, ME-SFI | |||
| Read out automatic transmission control unit fault memory | ||
Modulating pressure control solenoid valve fault code description, ME-SFI | |||
Shift pressure control solenoid valve fault code description, ME-SFI | |||
| Read out automatic transmission control unit fault memory | ||
1-2/4-5 shift solenoid valve fault code description, ME-SFI | |||
| Read out automatic transmission control unit fault memory | ||
2-3 shift solenoid valve fault code description, ME-SFI | |||
| Read out automatic transmission control unit fault memory | ||
3-4 shift solenoid valve fault code description, ME-SFI |
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