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P0237-MAP SENSOR VOLTAGE TOO LOW (CONTINUED) 3. MAP SENSOR While monitoring the scan tool, jumper the (F855) 5-volt supply circuit Did the P0238-MAP SENSOR VOLTAGE TOO HIGH, DTC set? Yes >> Replace the MAP sensor. Perform POWERTRAIN VERIFICATION TEST VER - 1 No >> Go To 4 4. (K37) SIGNAL CIRCUIT SHORTED TO (K916)) SENSOR RETURN CIRCUIT Turn the ignition off. Disconnect the ECM harness 60 pin connector. NOTE: Check connectors - Clean/repair as necessary. Is the resistance greater than 100 K Ohms? No >> Repair (K37) signal circuit shorted to (K916)) sensor return circuit or replace harness. Perform POWERTRAIN VERIFICATION TEST VER - 1 Yes >> Go To 5 9 - 1170 ENGINE - ELECTRICAL DIAGNOSTICS - DIESEL DR/DH |