Test Boost air temperature sensor Flash code: 3x short Fault indication: Fault is not indicated by EDC indicator lamp Fault path: Turbo air temperature sensor Effect of fault: This fault has no direct effect. The substitute value specified for such instances in the control unit may lead to a slight reduction in output Possible cause: Line break, short-circuit, turbo air temperature sensor defective, control unit defective, failure or contamination of cooling system. Test precondition: EDC control unit disconnected / connected Socket box connected 40 Test Measurement Corrective measures Sensor resistance Measure resistance at socket box across pin 55 and pin 13 Setpoint:
3.8–0.8 kΩ at 10-50°C – Check lines – Check plug connections – Replace temperature sen- sor – If no fault found, replace con tro l unit Sensor voltage Measure voltage at socket box across pin 55 and pin 13 Setpoints: 4.17–2.62 V at 10-50°C