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Acura RL (1996-2004 year). Manual - part 431

From page

14-84

MULTIPLEX CONTROL UNIT (DRIVER'S)

A (26P) CONNECTOR

Wire side of female terminals

Is there continuity?

Repair short in the wire between

the A2 or A13 terminal and the

ignition switch connector.

MULTIPLEX CONTROL UNIT (DRIVER'S)
B (16P) CONNECTOR

Is there continuity?

Check for short in the wire
between the B5 terminal and the
park pin switch. If wire is OK,
check the park pin switch.

Wire side of female terminals

Measure ATP P Voltage:
1. Turn the ignition switch ON (II).
2. Measure the voltage between

the B2 terminal and body
ground.

NOTE: Shift lever must be in

Is there voltage?

Repair open in the wire between

the B2 terminal and the trans-

mission range switch.

Check Park Pin Switch Oper-
ation:
Check for continuity between the
B5 terminal and body ground.

Check for loose multiplex control
unit (driver's) connectors. If nec-
essary, substitute a known-good
multiplex control unit (driver's)
and recheck.

Check Key Interlock Solenoid for
a Short Circuit:

1. Disconnect the A (26P) and B

(16P) connectors from the mul-

tiplex control unit (driver's).

2. Check for continuity between

the A2 terminal and body
ground and between the A13
terminal and body ground indi-
vidually.

Main Menu

Table of Contents

Torque Converter Clutch (Lock-up Control) Solenoid Valves
A and B

Test

1. Disconnect the transmission sub-harness connector

(14P).

2. Measure the resistance between the No. 1 terminal

(solenoid valve A) of the transmission sub-harness
connector and body ground, and between the No. 3

terminal (solenoid valve B) and body ground.

3. If the resistance is out of specification, disconnect

the 2P connector from the torque converter clutch
solenoid valves A and B.

Terminal side of
male terminals

TORQUE CONVERTER CLUTCH
SOLENOID VALVES A AND B

4. Measure the resistance between the No. 2 terminal

(solenoid valve A) of the torque converter clutch
solenoid connector and body ground, and between

the No. 1 terminal (solenoid valve B) and body
ground.

STANDARD: 12 - 25

• If the resistance is OK, replace the transmission

sub-harness.

• If the resistance is out of specification, replace

the torque converter clutch solenoid valves A
and B.

5. If the resistance is within the standard, connect the

No. 1 terminal of the torque converter clutch

solenoid valve connector to the battery positive termi-

nal. A clicking sound should be heard. Connect the
No. 2 terminal to the battery positive terminal. A click-
ing sound should be heard. Replace the torque con-

verter clutch solenoid valves A and B if no clicking
sound is heard.

TRANSMISSION SUB-HARNESS
CONNECTOR (14P)

Terminal side of

male terminals

STANDARD: 12 - 25

Main Menu

Table of Contents

Replacement

NOTE: Torque converter clutch (lock-up control)

solenoid valves A and B must be replaced as an assem-
bly.

1. Remove the mounting bolts and torque converter

clutch solenoid valves A and B.

6 x 1.0 mm

12 N-m
(1.2 kgf-m, 8.7 Ibf-ft)

TORQUE CONVERTER CLUTCH
SOLENOID VALVES

A AND B

FILTER/GASKET
Replace.
Install in this
direction.

Clean mounting surface
and fluid passages

2. Clean the mounting surface and fluid passages of

the torque converter clutch solenoid valves A and B,
and install a new torque converter clutch solenoid
valves A and B with a new filter/gasket.

NOTE: Install the filter/gasket in the direction shown.

3. Check connector for rust, dirt or oil, then reconnect

the connector securely.

Main Menu

Table of Contents

Shift Solenoid Valves A and B

Test

1. Disconnect the transmission sub-harness connector

(14P).

2. Measure the resistance between the No. 4 terminal

of the transmission sub-harness connector and
body ground, and between the No. 5 terminal and
body ground.

STANDARD: 12 - 25

3. If the resistance is out of specification, remove the

shift cable cover, and disconnect the shift solenoid
valve/A/T clutch pressure control solenoid valve

harness connector.

CLAMP

SHIFT CABLE
COVER

Measure the resistance between the No. 1 terminal
of the shift solenoid valve/A/T clutch pressure con-

trol solenoid valve harness connector and body

ground, and between the No. 2 terminal and body
ground.

STANDARD: 12 - 25

SHIFT SOLENOID VALVE/

A/T CLUTCH PRESSURE
CONTROL SOLENOID VALVE

HARNESS CONNECTOR

Terminal side of

male terminals

• If the resistance is within specification, replace the

transmission sub-harness.

• If the resistance is out of specification, replace the

shift solenoid valves A and B.

5. If the resistance is within the standard, connect the

No. 2 terminal of the shift solenoid valve/A/T clutch
pressure control solenoid valve harness connector

to the battery positive terminal. A clicking sound

should be heard. Connect the No. 1 terminal to the
battery positive terminal. A clicking sound should
be heard. If no clicking sound is heard, replace the
shift solenoid valves A and B.

NOTE: If solenoid valve replacement is required,

see the following headings:
• Lower Valve Body

Removal/Installation ...................................

14-112

Disassembly/Reassembly ..........................

14-113

• Shift Solenoid Valves A and B

Test ..............................................................

14-115

Replacement ...............................................

14-115

6 x 1.0 mm