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P0238-MAP SENSOR VOLTAGE TOO HIGH (CONTINUED) 7. (F855) SENSOR RETURN CIRCUIT OPEN Measure the resistance between the (K916) sensor return circuit in the Is the resistance less than 10 Ohms? Yes >> Go To 8 No >> Repair or replace the engine harness. Perform POWERTRAIN VERIFICATION TEST VER - 1 8. INTERMITTENT CONDITION Reconnect the ECM harness connector. Turn the ignition on. While monitoring scan tool, connect a jumper wire between the (K37) Does the scan tool show P0237-Map Sensor Voltage Too Low Yes >> Refer to the INTERMITTENT CONDITION Symptom (Diagnostic Procedure). (Refer to 9 - ENGINE - DIAGNOSIS AND TESTING) No >> Replace and program the ECM in accordance with the Service Information. Perform POWERTRAIN VERIFICATION TEST VER - 1 9 - 1178 ENGINE - ELECTRICAL DIAGNOSTICS - DIESEL DR/DH |