Date: July 19, 2007
Order No.: P-B-42.45/78
Supercedes:
Group: 42
SUBJECT:
Model 129.061/063/066/067/068/076
Model 140.032/033/043/051/057/070/076
Model 170.447/449/465/466
Model 202.022/023/024/028/029/033
Model 203.061/064/065/081/084/264/281/284/747
Model 208.365/370/374/465/470/474
Model 210.020/025/055/065/070/072/074/082/083/265/282
Model 215.373/374/375/376/378/379
Model 220.067/170/173/174/175/176/178/179/183/184
ABS/ESP Indicator Lamp Illuminated / Fault Code C1140 and/or C1540
If you receive customer reports in the above model vehicles that the ABS/ESP indicator lamp is illuminated with fault code C1140 and/or
C1504 (steering angle sensor not initialized), perform the below steps to resolve. Under no circumstance should the steering angle sensor or
ESP control unit be replaced in an attempt to address this condition.
Note:
These fault codes may be the result of temporary voltage dips after start-up. Since the steering angle sensor is extremely sensitive to
voltage changes, it is absolutely essential to use an oscilloscope (STAR Diagnosis system) with the smallest possible time graduation to
collect data at a high frequency in order to obtain the most accurate measurement.
- Check the on-board power supply voltage at the steering angle sensor during vehicle start-up.
- Inspect the steering angle sensor connectors and harness for any loose contact and/or corrosion and correct as necessary.
Note:
The following allowable labor operations should be used when submitting a warranty claim for this repair. This information has been
generated on July 19, 2007. Please refer to Netstar -> Star TekInfo -> Star Time for the most current labor time allowance.
2000 Mercedes Benz CLK 320 (208.365) V6-3.2L (112.940) Page 321
In Case of Warranty, use the table.
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