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Home >> Mercedes Benz >> 1997 >> E320 >> Repair and Diagnosis >> External Pages >> Different car >> Section 6 (Power Seats - E55, E300, E320 & E430) >> System Tests (Power Seats) >> Test 25: Can L/Can H Data Line Shorted Together

Test 25: Can L/Can H Data Line Shorted Together

WARNING: This page is about a different car, the 1999 Mercedes-Benz E55, 1998 Mercedes-Benz E430, 1998 Mercedes-Benz E320, and 1998 Mercedes-Benz E300. However, it is still accessible from the selected car via links, so may be relevant.
  1. Turn ignition switch to LOCK position. Disconnect combination control module harness connector. See Figure. Disconnect Pneumatic System Equipment (PSE) control module harness connectors No. 1 and 3. See Figure. Disconnect both power seat control module harness connector No. 1. See Figure. Measure resistance between terminal No. 6 and 7 at driver's side power seat control module harness connector No. 1. If resistance is greater than 20 k/ohms, go to next step. If resistance is 20 k/ohms or less, repair short between CAN L and CAN H data lines. See WIRING DIAGRAMS .
  2. Measure resistance between terminal No. 6 and 7 at passenger's side power seat control module harness connector No. 1. If resistance is greater than 20 k/ohms, CAN L and CAN H data lines are not shorted together at this time. If resistance is 20 k/ohms or less, repair short between CAN L and CAN H data lines.
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