Check wiring and connectors between the EST::ECU (E112) and EST::CVU::CDS (V199). The battery should be disconnected during measurements. 1. Check connnectors: - Disconnect harness connectors on both ECU side, and CDS side. - Visually check connectors for defects connecting E112 and V199. 2. Check solenoid: - Disconnect harness connector on both ECU side, and CDS side. - Measure the resistance on the solenoid component between pins V199::1 and V199::2. - Should be 6.3 ohm at +20°C If resistance about 0 ohm replace solenoid. 3. Check Wiring - Disconnect harness connector on both ECU side, and CDS side. - Check cable harness for defects. - Measure the resistance over the cables between pins E112::A13 and E112::A15. It should be infinite. If not cables has broken isolation or shorcicuit in cable connectors. - Connect the connector on CDS side. - Measure the resistance over the cables between pins E112::A13 and E112::A15. It should be about same resistance as in step 2. If resistance much lower short circuit in connector between CDS and cable. Verify that the issue is solved by performing a Diagnostic SelfTest (requires Parking Brake to be applied) - If the root cause fault has been fixed, this DTC will be set passive.

Diagnostic depth