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. To invalidate error: 1. Turn the ignition key to OFF, and wait for 10 seconds. 2. Apply Parking brake. 3. Make sure the tag axle wheels are free to steer (e.g. vehicle should not be on a lift) 4. Turn the ignition key to ON. 5. Diagnostic SelfTest is now executed. 6. After approximately 60 second system should return to normal operation. - Faultcodes should be passive.

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