Disconnect the connector from each of these sensors, one at a time, and measure voltage between body ground and ECM/PCM connector terminal A21 with the ignition switch ON (II). Manifold absolute pressure (MAP) sensor Accelerator pedal position (APP) sensor Input shaft (mainshaft) speed sensor (A/T) Is there about 5 V?
YES | - | Replace the sensor that restored 5 V when disconnected.■
NO | - | Go to Step 66 .
Turn the ignition switch OFF. Jump the SCS line with the HDS. Disconnect the connectors from these sensors: Manifold absolute pressure (MAP) sensor Accelerator pedal position (APP) sensor Input shaft (mainshaft) speed sensor (A/T) Disconnect ECM/PCM connector A (31P). |