Acura RL (1996-2004 year). Manual — part 426
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Is there approx. 10 V?
Check for short in the wire
between the E10 terminal and the
transmission range switch or A/T
gear position indicator. If wire is
OK, check for loose PCM connec-
tors. If necessary, substitute a
known-good PCM and recheck.
Measure ATP 1 Voltage:
1. Shift to all positions other than
2. Measure the voltage between
the E11 and A26 terminals.
Is there approx. 10 V?
Check for short in the wire
between the E11 terminal and the
transmission range switch or A/T
gear position indicator. If wire is
OK, check for loose PCM connec-
tors. If necessary, substitute a
known-good PCM and recheck.
Check for loose PCM connectors.
If necessary, substitute a known-
good PCM and recheck.
PCM CONNECTORS
Wire side of female terminals
Measure ATP 2 Voltage:
1. Shift to all positions other than
2. Measure the voltage between
the E10 and A26 terminals.
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Electrical Troubleshooting
Troubleshooting Flowchart — Transmission Range (A/T Gear Position)
Switch (Open)
• OBD II Scan Tool indicates Code
P1706.
• Self-diagnosis indicator light
blinks six times.
Test the transmission range
switch (see page
).
Is the switch OK?
Measure ATP R Voltage:
1. Turn the ignition switch ON (II).
2. Shift to position.
3. Measure the voltage between
the E7 and A26 terminals.
Is there voltage?
Measure ATP PN Voltage:
1. Shift to position.
2. Measure the voltage between
the E24 and A26 terminals.
Is there voltage?
Measure ATP D4 Voltage:
1. Shift to position.
2. Measure the voltage between
the E8 and A26 terminals.
Is there voltage?
Possible Cause
• Disconnected transmission range
switch connector
• Open in transmission range
switch wire
• Faulty transmission range switch
Replace the transmission range
switch.
Repair open in the wire between
the E7 terminal and the transmis-
sion range switch.
Repair open in the wire between
the E24 terminal and the A/T
gear position indicator, or the
wires between the A/T gear posi-
tion indicator and the transmis-
sion range switch.
Repair open in the wire between
the E8 terminal and the transmis-
sion range switch.
PCM CONNECTORS
Wire side of female terminals
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Is there voltage?
Repair open in the wire between
the E9 terminal and the transmis-
sion range switch.
Is there voltage?
Repair open in the wire between
the E10 terminal and the trans-
mission range switch.
Is there voltage?
Repair open in the wire between
the E11 terminal and the transmis-
sion range switch.
Check for loose PCM connectors.
If necessary, substitute a known-
good PCM and recheck.
PCM CONNECTORS
Wire side of female terminals
Measure ATP 2 Voltage:
1. Shift to position.
2. Measure the voltage between
the E10 and A26 terminals.
Measure ATP1 Voltage:
1. Shift to position.
2. Measure the voltage between
the E11 and A26 terminals.
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Electrical Troubleshooting
Troubleshooting Flowchart — Shift Solenoid Valve A
• OBD II Scan Tool indicates Code
P0753.
• Self-diagnosis indicator light
blinks seven times.
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 E12 and A26 terminals.
Is there voltage?
Measure Shift Solenoid Valve A
Resistance:
1. Turn the ignition switch OFF.
2. Measure the resistance
between the E12 and A26 ter-
minals.
Is the resistance 12-25
Possible Cause
• Disconnected shift solenoid
valve A connector
• Short or open in shift solenoid
valve A wire
• Faulty shift solenoid valve A
• Open VB SOL line
Repair short to power in the wire
between the E12 terminal and
the shift 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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