If battery voltage is displayed, check wiring harness for chafing and pinching damage.
P0451
P0451
Tank Pressure Sensor - Signal Implausible
Diagnosis conditions
- Ignition on
Possible fault cause
- Pressure sensor
Diagnosis/Troubleshooting
DME 7.8
P0452
99 Tank pressure sensor - below limit
Diagnosis conditions
- Ignition on
Possible fault cause
- Short circuit to ground
Affected terminals
Terminal IV/21
Diagnosis/troubleshooting
On Board Diagnostic
P0452
Tank Pressure Sensor - Below Limit
Function
The pressure sensor transmits the signal indicating tank pressure during the fuel tank leak test.