DR-2B Check MAP Sensor Circuit In SMEC

COMPLETE DRIVEABILITY TEST 2-STEP A BEFORE PROCEEDING.
1. Connect diagnostic readout box to engine harness connector, then disconnect MAP sensor connector.
2. Put system into Sensor Test Mode 08.
3. If display reads 4 volts, proceed to Step C.
4. If display indicates no voltage and cavity 1 of 60-way connector is not shorted to ground, replace SMEC.