P0450

P0450
Tank Pressure Sensor - Signal Implausible

P0452
Tank Pressure Sensor - Below Limit

P0453
Tank Pressure Sensor - Above Limit

Function

The pressure sensor transmits the signal indicating tank pressure during the fuel tank leak test.

Diagnosis conditions





- Ignition on




Wiring diagram




Diagnosis procedure P0450




Diagnosis procedure P0452




Diagnosis procedure P0453

1 Check wiring from pressure sensor to DME control module for short to ground.

1. Connect special tool 9616 to wiring harness (DME control module connector).

2. Remove connector of pressure sensor.

3. Connect ohmmeter to special tool 9616, pin 72, and ground.

Display: Infinity ohms

If 0 - 5 ohms is displayed, check wiring harness for chafing and pinching damage.

2 Check wiring from pressure sensor to DME control module for short to B+.

1. Connect special tool 9616 to wiring harness (DME control module connector).

2. Remove connector of pressure sensor.

3. Connect voltmeter to special tool 9616, pin 72, and ground.

Display: 0 V

If battery voltage is displayed, check wiring harness for chafing and pinching damage.