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15.3 Model 210 Electric Seat Adjustment (ESA)   >   12 Diagnosis - Diagnostic Trouble Code (DTC) Memory (CF)

Preparation for Test: 1. Check Fuse F1-22, and F4-3 ok, 2. Check fuse F4-8, F4-9 (for left front ESA control module (N32/1). 3. Check fuse F4-13, F4-14 (for right front ESA control module (N32/2). 4. Connect the Hand-Held Tester (HHT) to X11/4, according to diagram, see section 0. The diagnostic trouble codes (DTC's) can only be read out and erased via the Hand-Held-Tester. DTC Possible cause Test step/Remedy 1) Combination control module (N10-1) defective. - Left/right front ESA control modules (N32/1, N32/2) - Low voltage, < 10 V (N10-1) - Excess voltage, >15.5 V (N10-1) - Low voltage,< 10 V (N32/1, N32/2) - Circuit 30C D.M., Body and Accessories, Volume 1, 2.1, 23 4.0 Circuit 31B D.M., Body and Accessories, Volume 1, 2.1, 23 5.0 Left front power seat does not communicate on CAN data line Left front ESA control module (N32/1) 23 1.0, 21.0, 22.0, 23.0, 24.0, 25.0 Right front power seat does not communicate on CAN data line Right front ESA control module (N32/2) 23 1.0, 21.0, 22.0, 23.0, 24.0, 25.0 Interior CAN Low 23 22.0, 24.0, 25.0 Interior CAN high 23 21.0, 23.0, 25.0 Backrest switch harness - 23 2.0, 12.0, 13.0 Front head restraint adjustment and height adjustment harness - 23 2.0, 15.0, 16.0 Rear fore/aft adjustment and height adjustment harness - 23 2.0, 3.0, 4.0 Steering column adjustment harness - 23 6.0, 7.0, 9.0, 10.0 Hall-sensor for fore/aft motor (M27m1) 23 5.0 Hall-sensor for front raise/lower motor (M27m3) 23 8.0 Hall-sensor for rear raise/lower motor (M27m2) 23 11.0 Hall-sensor for head restraint raise/lower motor (M27m4) 23 17.0 Hall-sensor for backrest fore/aft motor (M27m5) 23 14.0 1) Observe Preparation for Test, see 22.