Check wiring and connectors between the EST::ECU (E112) and EST::CVU::VPS (T185). The battery should be disconnected during measurements. 1. Check CAN cable harness and connectors: - Disconnect harness connectors on both ECU side, and CVU side. - Measure the resistance in the cable between pins E112::A8 and T185::A. It should be approximately 0 ohm (no interruption or bad connection). - Measure the resistance in the cable between pins E112::A2 and T185::B. It should be approximately 0 ohm (no interruption or bad connection). - Measure the resistance in the cable between pins E112::A12 and T185::C. It should be approximately 0 ohm (no interruption or bad connection). - Measure the resistance in the cable between each single wire. It should be infinite (no short circuit). - Visually inspect the isolation along the entire cable length, for abrasion damage that could lead to a short circuit against fram or similar. 2. Visually inspect the VPS connector housing. - If cracked och corroded, replace connector housing. 3. If cable harness and connectors are verified OK, and fault remains, replace VPS (T185) sensor. 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.

Diagnostic depth