Acura RL (1996-2004 year). Manual — part 424

If the self-diagnostic indicator light does not blink, perform an inspection according to the table below.

14-79

14-81

14-82

14-84

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Table of Contents

Electrical Troubleshooting

Troubleshooting Flowchart — Torque Converter Clutch (Lock-up Control)

Solenoid Valve A

• OBD II Scan Tool indicates Code

P1753.

• Self-diagnosis indicator

light blinks once.

Check for a Short to Power:

1. Turn the ignition switch OFF.

2. Disconnect the A (26P) and E

(26P) connectors from the PCM.

3. Turn the ignition switch ON (II).
4. Measure the voltage between

the E13 and A26 terminals.

Is there voltage?

Measure Torque Converter Clutch
Solenoid Valve A Resistance:

1. Turn the ignition switch OFF.

2. Measure the resistance

between the E13 and A26 ter-
minals.

Is the resistance 12-25

To page

14-59

Possible Cause

• Disconnected torque converter

clutch solenoid valve A connec-

tor

• Short or open in torque con-

verter clutch solenoid valve A
wire

• Faulty torque converter clutch

solenoid valve A

• Open in VB SOL line

Repair short to power in the wire
between the E13 terminal and the
torque converter clutch solenoid

valve A.

Check for loose PCM connectors.
If necessary, substitute a known-
good solenoid valves A and B or
PCM and recheck.

PCM CONNECTORS

Wire side of female terminals

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Table of Contents

From page

14-58

Check Torque Converter Clutch
Solenoid Valve A for a Short
Circuit:

1. Disconnect the 2P connector

from the torque converter
clutch solenoid valves A and B.

2. Check for continuity between

the E13 and A26 terminals.

Is there continuity?

Measure Torque Converter Clutch
Solenoid Valve A Resistance at
the Solenoid Connector:

Measure the resistance between

the No. 2 terminal of the torque
converter clutch solenoid connec-
tor and body ground.

Is the resistance 12-25

Check the VB SOL Voltage:

1. Turn the ignition switch ON (II).

2. Measure the voltage between

the E1 and A26 terminals.

Is there voltage?

Replace the torque converter
clutch solenoid valves A and B.

Repair short to ground in the wire
between the E13 terminal and the
torque converter clutch solenoid
valve A.

Check for open in the wire
between the E13 terminal and the
torque converter clutch solenoid
valve A.

Check for open in the wire
between the E1 terminal and the
under-hood fuse/relay box.

PCM CONNECTORS

Wire side of female terminals

Terminal side of
male terminals

TORQUE CONVERTER CLUTCH
SOLENOID VALVES A AND B
CONNECTOR

Main Menu

Table of Contents

Electrical Troubleshooting

Troubleshooting Flowchart — Torque Converter Clutch (Lock-up Control)

Solenoid Valve B

• OBD II Scan Tool indicates Code

P1758.

• Self-diagnosis indicator light

blinks twice.

Check for a Short to Power:

1. Turn the ignition switch OFF.

2. Disconnect the A (26P) and

E (26P) connectors from the
PCM.

3. Turn the ignition switch ON (II).
4. Measure the voltage between

the E26 and A26 terminals.

Is there voltage?

Measure Torque Converter Clutch
Solenoid Valve B Resistance:

1. Turn the ignition switch OFF.

2. Measure the resistance

between the E26 and A26 ter-
minals.

Is the resistance 12-25

To page

14-61

Possible Cause

• Disconnected torque converter

clutch solenoid valve B connec-
tor

• Short or open in torque con-

verter clutch solenoid valve B
wire

• Faulty torque converter clutch

solenoid valve B

• Open VB SOL line

Repair short to power in the wire
between the E26 terminal and the
torque converter clutch solenoid
valve B.

Check for loose PCM connectors.
If necessary, substitute a known-
good solenoid valves A and B or

PCM and recheck.

PCM CONNECTORS

Wire side of female terminals

Main Menu

Table of Contents