DTC 46

DTC 46: Pressure Sensor System (Open Ground)

PRESSURE SENSOR SYSTEM CIRCUIT
Refer to DTC 45. DTC 45

CIRCUIT OPERATION
Refer to DTC 45. DTC 45

DTC SET CONDITIONS
DTC 46 is set when the output signal from the pressure sensor is above 2.0 volts.

TROUBLESHOOTING HINTS (THE MOST LIKELY CAUSES FOR THIS CODE TO BE SET ARE:)
^ Malfunction of the pressure sensor
^ Damaged harness wires and connectors
^ Malfunction of the AWD-ECU

DIAGNOSIS
STEP 1. Measure the resistance at pressure sensor connector B-30.








Disconnect the pressure sensor connector, and measure the resistance between terminal 3 and ground at the harness side.
^ The resistance should measure less than 2 ohms.
Q: Is the measured resistance less than 2 ohms?
YES: Go to Step 2.
NO: Go to Step 3.

STEP 2. Check pressure sensor connector B-30 for loose, corroded or damaged terminals, or terminals pushed back in the connector.





Q: Are the connector and terminals in good condition?
YES: Replace the pressure sensor.
NO: Repair or replace the damaged components.

STEP 3. Check pressure sensor connector B-30 and AWD-ECU connector C-139 for loose, corroded or damaged terminals, or terminals pushed back in the connector.








Q: Are the connectors and terminals in good condition?
YES: Go to Step 4.
NO: Repair or replace the damaged components.

STEP 4. Check the harness for open circuit between pressure sensor connector B-30 terminal 3 and AWD-ECU connector C-139 terminal 10.








Q: Is the harness wire in good condition?
YES: Replace the AWD-ECU.
NO: Repair or replace the harness wire.