Acura TSX 2004 User Manual

NO: Troubleshooting is complete.
DTC P2646: OIL PRESSURE SWITCH CIRCUIT LOW VOLTAGE
Special Tools Required:
z Pressure gauge adapter 07NAJ-P07010A
z A/T low pressure gauge w/panel 07406-0070300
z A/T pressure hose 07406-0020201
z A/T pressure hose, 2,210 mm 07MAJ-PY4011A
z A/T pressure adapter 07MAJ-PY40120
z Oil pressure hose 07ZAJ-S5A0200
1. Check the engine oil level.
Is the level OK?
YES: Go to step 2.
NO: Adjust the engine oil to the proper level, then go to step 21 .
2. Turn the ignition switch ON (II).
3. Clear the DTC with the HDS.
4. Do the VTEC TEST in the INSPECTION MENU with the HDS.
Is the result OK?
YES: Intermittent failure, system in OK at this time. Check for poor connections or loose
terminals at the VTEC oil pressure switch, the VTEC solenoid valve, and the ECM/PCM.
NO: Go to step 5.
5. Turn the ignition switch OFF.
6. Disconnect the VTEC oil pressure switch 2P connector.
7. Turn the ignition switch ON (II).
8. Check the VTEC PRES SW in the DATA LIST with the HDS.
Is SWITCH ON indicated?
YES: Go to step 9.
NO: Replace the VTEC oil pressure switch (see VTEC OIL PRESSURE SWITCH
REPLACEMENT ), then go to step 21 .
9. Turn the ignition switch OFF.
10. Remove the VTEC oil pressure switch (A) and install the special tools as shown, then install the VTEC
oil pressure switch (A) to the oil pressure gauge adapter (B).
NOTE: Install the switch in the reverse order of removal with a new O-ring.
2004 Acura TSX
2004 ENGINE PERFORMANCE VTEC/VTC - TSX
Wednesday, March 12, 2008 2:17:58 AM Page 20

Acura TSX 2004 Specifications

General

Brand	Acura
Model	TSX 2004
Category	Automobile
Language	English