Acura RL (1996-2004 year). Manual — part 536
PGM-FI DTC: 35 (TC-STB signal does not match TC-FC signal)
Check for a short to body ground
in the TC-STB circuit:
1. Disconnect the PCM connec-
tor C (12P) and TCS control
unit 14P connectors.
2. Check for continuity between
the TCS control unit UP con-
nector terminal No. 10 and
body ground.
TCS CONTROL UNIT 14P CONNECTOR
Wire side of female terminals
Is there continuity?
Repair short to body ground in
the wire between the PCM and
TCS control unit.
TCS CONTROL UNIT 20P CONNECTOR
Check for a short to body ground
in the TC-FC circuit:
1. Disconnect the TCS control
unit 20P connector.
2. Check for continuity between
terminal No. 14 and body
ground.
Is there continuity?
Repair short to body ground in
the wire between the PCM and
TCS control unit.
Wire side of female terminals
Check the TCS control unit (TC-
STB):
1. Connect the TCS control unit
14P and 20P connectors and
PCM connector C (12P).
2. Raise the front of the vehicle,
and support it with safety
stands.
3. Start the engine.
4. Measure the voltage between
the TCS control unit 14P con-
nector terminal No. 10 and
body ground.
TCS CONTROL UNIT UP CONNECTOR
Wire side of female terminals
Is the voltage as specified?
TCS is functioning:
about 0 V
TCS is not functioning:
about 5 V
Check for loose TCS control unit
connectors. If necessary, substi-
tute a known-good TCS control
unit and recheck.
NOTE: Stop the wheels by depressing
the brake pedal lightly.
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Troubleshooting
PGM-FI DTC: 35 (TC-STB signal does not match TC-FC signal) (cont'd)
Check the TCS control unit (TC-
FC):
Measure the voltage between the
TCS control unit 20P connector
terminal No. 14 and body ground.
NOTE: Use the 10 V range or a similar
range in an analog tester.
TCS IS NOT TCS IS
FUNCTIONING FUNCTIONING
TCS CONTROL UNIT 20P CONNECTOR
Check for loose TCS control unit
connectors. If necessary, substi-
tute a known-good TCS control
unit and recheck.
NOTE: Stop the wheels by depressing
the brake pedal lightly.
Check for an open in the TC-STB
circuit:
Measure the voltage between the
PCM connector C (12P) terminal
No. 12 and body ground.
Wire side of female terminals
PCM CONNECTOR C (12P)
Is there about 5 V when TCS is
not functioning?
Repair open in the wire between
the TCS control unit and PCM.
Wire side of female terminals
Check for an open in the TC-FC
circuit:
Measure the voltage between the
PCM connector C (12P) terminal
No. 10 and body ground.
NOTE: Use the 10 V range or a similar
range in an analog tester.
TCS IS NOT TCS IS
FUNCTIONING FUNCTIONING
Is there about 4.5 V when TCS is
not functioning?
Repair open in the wire between
the TCS control unit and PCM.
Check for loose PCM connectors.
If necessary, substitute a known-
good PCM and recheck.
TCS is functioning (maximum):
about 1.5V
TCS is not functioning:
about 4.5 V
Is the voltage as specified?
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PGM-FI DTC: 36 [TC-FC signal (High-Low check)]
Check for a short to body ground
in the TC-FC circuit:
1. Disconnect the PCM connec-
tor C (12P) and TCS control
unit 20P connectors.
2. Check for continuity between
the TCS control unit 20P con-
nector terminal No. 14 and
body ground.
TCS CONTROL UNIT 20P CONNECTOR
Is there continuity?
Repair short to body ground in
the wire between the PCM and
TCS control unit.
Wire side of female terminals
TCS IS NOT TCS IS
FUNCTIONING FUNCTIONING
NOTE: Use the 10 V range or a similar
range in an analog tester.
Is there about 4.5 V when TCS is
not functioning?
Check for loose TCS control unit
connector. If necessary, substi-
tute a known-good TCS control
unit and recheck.
Check for an open in the TC-FC
circuit:
Measure the voltage between the
PCM connector C (12P) terminal
No. 10 and body ground.
NOTE: Use the 10 V range or a similar
range in an analog tester.
TCS IS NOT TCS IS
FUNCTIONING FUNCTIONING
PCM CONNECTOR C (12P)
Is there about 4.5 V when TCS is
not functioning?
Repair open in the wire between
the TCS control unit and PCM.
Wire side of female terminals
Check for loose PCM connectors.
If necessary, substitute a known-
good PCM and recheck.
Check the TCS control unit:
1. Connect the TCS control unit
20P connector.
2. Turn the ignition switch ON
(II).
3. Measure the voltage between
the TCS control unit 20P con-
nector terminal No. 14 and
body ground.
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Troubleshooting
Engine Speed (NEP) Signal
Diagnostic Trouble Code (DTC) 3-2: Engine Speed (NEP) Signal Diagnosis
With engine running, TCS indi-
cator light is ON.
With the SCS service connec-
tor connected (see page
Check for a short to body ground
in the NEP circuit:
1. Disconnect the TCS control unit
20P, PCM C (12P) and gauge
assembly 22P connectors.
2. Check for continuity between
the PCM connector C (12P) ter-
minal No. 8 and body ground.
Is there continuity?
Is there about 6 V?
Check for an open in the NEP cir-
cuit:
Measure the voltage between the
TCS control unit 20P connector
terminal No. 12 and body ground.
Is there about 6 V?
The system is OK at this time.
If the problem recurs, replace
the TCS control unit.
PCM CONNECTOR C (12P)
Wire side of female terminals
Repair short to body ground in
the wire between the TCS control
unit, PCM and gauge assembly.
Check for loose PCM connectors.
If necessary, substitute a known-
good PCM and recheck.
NOTE:
Use the 10 V range or a similar range in an
analog tester.
Check with the engine idling and warmed-up.
TCS CONTROL UNIT 20P CONNECTOR
Repair open in the wire between
the PCM and TCS control unit.
Wire side of female terminals
Check the PCM:
1. Connect the PCM connector
C(12P).
2. Start the engine.
3. Measure the voltage between
the PCM connector C (12P) ter-
minal No. 8 and body ground.
Use the 10 V range or a similar range in an
analog tester.
Check with the engine idling and warmed-up.
NOTE:
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