DTC P0453 Fuel Tank Pressure Sensor Circuit High Voltage. Oldsmobile Intrigue 2000

For 1990-2009 cars only

Makes 🢒 Oldsmobile 🢒 2000 🢒 Intrigue 🢒 Engine 🢒 Engine Controls - 3.5L 🢒 DTC P0453 Fuel Tank Pressure Sensor Circuit High Voltage

Refer to Engine Controls Schematics

Heated O2 Sensors

Trans Solenoid, ABS, and O2 Sensor Fuses
Handling ESD Sensitive Parts Notice
Engine Controls Component Views
Powertrain Control Module Description
MAF, Secondary Air Injection Pump Bypass Solenoid, IAC and Secondary AIR Pump
A/C Pressure Switch, TPS, MAP, ECT and IAT
OBD II Symbol Description Notice
.

The powertrain control module (PCM) monitors the fuel tank pressure sensor signal to detect vacuum decay and excess vacuum during the enhanced evaporative emission (EVAP) diagnostic. The fuel tank pressure sensor measures the difference between the air pressure, or vacuum, in the tank and the outside air pressure. The PCM applies a 5.0 volt reference and ground to the sensor. The sensor will return a signal voltage between 0.1 and 4.9 volts. If the PCM detects a fuel tank pressure sensor signal that is excessively high, DTC P0453 will set.

Conditions for Running the DTC

•	The following types of diagnostic trouble codes (DTCs) are not set:

•

Misfire

•

Fuel trim

•	Injector control circuit

•	AIR system

•	Exhaust gas recirculation (EGR) system

•	Vehicle speed sensor (VSS)

•	Heated oxygen sensor (HO2S)

•	Throttle position (TP) sensor

•	Manifold absolute pressure (MAP) sensor

•	Mass air flow (MAF) sensor

•	Engine coolant temperature (ECT) sensor

•	Intake air temperature (IAT) sensor

•	The battery voltage is between 5-18 volts.

•	The barometric pressure is more than 75 kPa.

•	The fuel level is between 15-85 percent of full capacity for at least 10 seconds continuously. The time limit is required because fuel sloshing within the tank may cause the fuel level indication to vary outside the fuel level limits.

•	The ECT at start up was between 4°C and 30°C (40°F and 86°F).

•	The IAT at start up was between 4°C and 30°C (40°F and 86°F).

•	The ECT not more than 8°C (46°F) above or 2°C (37°F) below the IAT at start up.

Conditions for Setting the DTC

•	The fuel tank pressure sensor signal is more than 4.9 volts.

•	The conditions is present for 5 seconds.

Action Taken When the DTC Sets

•	The PCM illuminates the malfunction indicator lamp (MIL) on the second consecutive ignition cycle that the diagnostic runs and fails.

•

The PCM records the operating conditions at the time the diagnostic fails. The first time the diagnostic fails, the PCM stores this information in the Failure Records. If the diagnostic reports a failure on the second consecutive ignition cycle, the PCM records the operating conditions at the time of the failure. The PCM writes the conditions to the Freeze Frame and updates the Failure Records.

Conditions for Clearing the MIL/DTC

•	The PCM turns the MIL OFF after 3 consecutive drive trips during which the diagnostic runs and passes.

•	A last test failed, or the current DTC, clears when the diagnostic runs and passes.

•	A History DTC clears after 40 consecutive warm-up cycles, if no other emission related diagnostic failures are reported.

•	Use a scan tool in order to clear the MIL diagnostic trouble code.

•	Interrupting the PCM battery voltage may or may not clear DTCs. This practice is not recommended. Refer to Powertrain Control Module Description , Clearing Diagnostic Trouble Codes.

Diagnostic Aids

Notice: Use the connector test adapter kit J 35616-A for any test that requires probing the following items:

•	The PCM harness connectors

•	The electrical center fuse/relay cavities

•	The component terminals

•	The component harness connector

Using this kit will prevent damage caused by the improper probing of connector terminals.

If the problem is intermittent, refer to Intermittent Conditions .

Test Description

The numbers below refer to the step numbers on the diagnostic table.

This vehicle is equipped with a PCM that utilizes an electrically erasable programmable read only memory (EEPROM). When the PCM is being replaced, the new PCM must be programmed.

Step	Action	Value(s)	Yes	No
1	Did you perform the Powertrain On-Board Diagnostic (OBD) System Check?	--	Go to Step 2	Go to Powertrain On Board Diagnostic (OBD) System Check
2	Observe the fuel tank pressure sensor voltage on the scan tool. Is the fuel tank pressure sensor voltage more than the specified value?	4.7 V	Go to Step 4	Go to Step 3
3	Operate the vehicle within the conditions described in Conditions for Setting the DTC. Monitor specific DTC info for DTC P0453. Does the scan tool indicate DTC P0453 failed this ignition?	--	Go to Step 4	Go to Diagnostic Aids
4	Disconnect the fuel tank pressure sensor. Observe the fuel tank pressure sensor voltage displayed on the scan tool. Is the fuel tank pressure sensor voltage near the specified value?	0 V	Go to Step 6	Go to Step 5
5	Turn the key to OFF. Disconnect the PCM. Turn the key to ON. Check the fuel tank pressure signal circuit for a short to voltage or a short to the 5 volt reference A circuit. If a problem is found, repair as necessary. Refer to Wiring Repairs in Wiring Systems. Was a problem found and corrected?	--	Go to Step 11	Go to Step 10
6	Turn the key to OFF. Disconnect the PCM. Check the fuel tank pressure sensor ground circuit for a poor terminal connection at the PCM. If a problem is found, repair as necessary. Refer to Testing for Intermittent Conditions and Poor Connections in Wiring Systems. Was a problem found and corrected?	--	Go to Step 11	Go to Step 7
7	Check for an open in the fuel tank pressure sensor ground circuit. If a problem is found, repair as necessary. Refer to Wiring Repairs in Wiring Systems. Was a problem found and corrected?	--	Go to Step 11	Go to Step 8
8	Check for poor terminal connection at the fuel tank pressure sensor connector. If a problem is found, repair as necessary. Refer to Testing for Intermittent Conditions and Poor Connections in Wiring Systems. Was a problem found and corrected?	--	Go to Step 11	Go to Step 9
9	Replace the fuel tank pressure sensor. Refer to Fuel Tank Pressure Sensor Replacement . Is the action complete?	--	Go to Step 11	--
10	Important: The replacement PCM must be programmed. Replace the PCM. Refer to Powertrain Control Module Replacement/Programming . Is the action complete?	--	Go to Step 11	--
11	Clear the DTCs with the scan tool. Turn the key to OFF and wait 15 seconds. Operate the vehicle within the conditions that are required for this diagnostic to run. Refer to the Conditions for Running the DTC. Does the scan tool indicate that this test ran and passed?	--	Go to Step 12	Go to Step 2
12	Review Captured Info using the scan tool. Are there any DTCs that have not been diagnosed?	--	Go to the applicable DTC table	System OK