How to check resistance of the Torque Converter lock up solenoid?

HENDERSONCOREY89

MEMBER
1998 ACURA INTEGRA
122,000 MILES

I keep getting this intermittent P0740 and P0700 CEL I know what it is but im unsure of what is causing it I beleive it might be the solenoid but I dont know what the specified values are or if im supposed to check resistance on both of the male pins doing it this way it is 33.4 ohms. Or one lead to the pin the other to ground that way its 14.6 ohms on each male pin. Can anyone give me any advice?

1 Reply

RIVERMIKERAT

MECHANIC
6,110 POSTS

DIAGNOSIS - S4XA -1998 Acura Integra LS
Page 1 of 1
DTC P0740: LOCK-UP CONTROL SYSTEM

NOTE:
DO NOT perform this DTC test until all other DTC have been repaired first.
1.
Using scan tool, check for any other DTC. If any other DTC exist, repair those DTC first, then recheck for DTC P0740. If no other DTC exist, go to next step.
Test line pressure. See HYDRAULIC PRESSURE TEST under TESTING in ACURA S4XA OVERHAUL article. If clutch pressure is within specification, go to next step. If line pressure is
not within specification, repair hydraulic system as necessary. See HYDRAULIC PRESSURE TROUBLE SHOOTING table under HYDRAULIC PRESSURE TEST in ACURA S4XA
OVERHAUL article.
Test clutch pressure. If clutch pressure is within specification, go to next step. If clutch pressure is not within specification, repair hydraulic system as necessary. See HYDRAULIC PRESSURE
TROUBLE SHOOTING table under HYDRAULIC PRESSURE TEST in ACURA S4XA OVERHAUL article.
Replace lock-up control solenoid valve assembly. See LOCK
VALVES under REMOVAL & INSTALLATION. Turn ignition off and clear codes. See
CLEARING FAULT CODES. Road test vehicle at speed greater than 55 MPH for more than one minute. Recheck DTC. If P0740 resets, go to next step. If P0740 does not reset, system is
okay.
Replace torque converter. Turn ignition off and clear codes. See CLEARING FAULT CODES
Road test vehicle at speed greater than 55 MPH for more than one minute. Recheck DTC. If P0740 resets, replace transaxle. If P0740 does not reset, system is okay.
2.
3.
-
UP CONTROL SOLENOID
4.
.
5.

1/24/2012

DIAGNOSIS - S4XA -1998 Acura Integra LS
Page 1 of 1
LOCK-UP CONTROL SOLENOID VALVES

Removal & Installation

1. Lock-up control solenoid valve assembly is located on transaxle. See Fig. 4. Disconnect harness connector at lock-up control solenoid valves.
Remove bolts, lock-up control solenoid valve assembly and gasket. To install, reverse removal procedure using NEW gasket. Tighten bolts to specification. See TORQUE
SPECIFICATIONS.
2.

1/24/2012

I'm not seeing a P0700 code for your vehicle.

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