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Acura RSX Honda Integra. Manual - part 104

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DTC P0122:

YES

11-122

PGM-FI System

DTC Troubleshooting (cont’d)

TP SENSOR 3P CONNECTOR

VCC2
(YEL/BLU)

SG2
(GRN/YEL)

SG2
(GRN/YEL)*

VCC2
(YEL/BLU)*

TPS

TP SENSOR 3P CONNECTOR

SG2

TPS

SG2

K20A3 engine:

K20A2 engine:

TP SENSOR 3P CONNECTOR

VCC2

TPS

VCC2

K20A3 engine:

K20A2 engine:

TP Sensor Circuit Low Voltage

(2002-2004 models)

NOTE: Information marked with an asterisk ( ) applies
to K20A2 engine.

1. Turn the ignition switch ON (II).

2. Check the throttle position with a scan tool or the

HDS.

Intermittent failure, system is OK at this time.

Check for poor connections or loose terminals at
the TP sensor and the ECM/PCM.

Go to step 3.

3. Turn the ignition switch OFF.

4. Disconnect the TP sensor 3P connector.

5. Turn the ignition switch ON (II).

6. Measure voltage between TP sensor 3P connector

terminals No. 1 and No. 3.

Go to step 7.

Go to step 14.

7. Turn the ignition switch OFF.

8. At the sensor side, measure resistance between TP

sensor 3P connector terminals No. 2 (No. 1) and
No. 3 (No. 2) with the throttle fully closed.

Go to step 9.

Replace the throttle body, K20A2 engine

(see page 11-410), K20A3 engine (see page 11-411).

9. Measure resistance between TP sensor 3P

connector terminals No. 1 (No. 2) and No. 2
(No. 3) with the throttle fully closed.

Go to step 10.

Replace the throttle body, K20A2 engine

(see page 11-410), K20A3 engine (see page 11-411).

Wire side of female terminals

Terminal side of male terminals

Is ther e about 10 % or 0.5 V when the thr ottle is
f ully closed and about 90 % or 4.5 V when the
thr ottle is f ully opened?

Is ther e about 5 V ?

Is ther e about 0.5

0.9 k

Is ther e about 4.5 k

05/06/27 17:34:17 61S6M040_110_0122

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YES

11-123

TP SENSOR 3P CONNECTOR

TPS
(RED/BLK)

ECM/PCM CONNECTOR A (31P)

TPS (RED/BLK)

JUMPER WIRE

TP SENSOR 3P CONNECTOR

TPS
(RED/BLK)

ECM/PCM CONNECTOR A (31P)

VCC2
(YEL/BLU)

SG2
(GRN/YEL)

10. Disconnect ECM/PCM connector A (31P).

11. At the wire harness side, check for continuity

between TP sensor 3P connector terminal No. 2
and body ground.

Repair short in the wire between the ECM/

PCM (A15) and the TP sensor.

Go to step 12.

12. Connect ECM/PCM connector terminal A15 to body

ground with a jumper wire.

13. At the wire harness side, check for continuity

between TP sensor 3P connector terminal No. 2
and body ground.

Update the ECM/PCM if it does not have the

latest software, or substitute a known-good ECM/
PCM (see page 11-6), then recheck. If the symptom/
indication goes away with a known-good ECM/PCM,
replace the original ECM/PCM (see page 11-284).

Repair open in the wire between the ECM/

PCM (A15) and the TP sensor.

14. Measure voltage between ECM/PCM connector

terminals A10 and A20.

Repair open in the wire between the ECM/

PCM (A20) and the TP sensor.

Update the ECM/PCM if it does not have the

latest software, or substitute a known-good ECM/
PCM (see page 11-6), then recheck. If the symptom/
indication goes away with a known-good ECM/PCM,
replace the original ECM/PCM (see page 11-284).

Wire side of female terminals

Is ther e continuity?

Is ther e about 5 V ?

05/06/27 17:34:17 61S6M040_110_0123

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０１

０２

Ｓ６Ｍ６ＡＡＬＫ７２１０００９０１２２ＦＡＡＴ００

−

DTC P0122:

YES

11-124

PGM-FI System

DTC Troubleshooting (cont’d)

TP SENSOR 3P CONNECTOR

VCC2
(YEL/BLU)
SG2
(GRN/YEL)*

SG2
(GRN/YEL)
VCC2
(YEL/BLU)*

TPS

TP SENSOR 3P CONNECTOR

SG2

TPS

SG2

K20A3 engine:

K20Z1 engine:

TP Sensor Circuit Low Voltage

(2005-2006 models)

NOTE: Information marked with an asterisk ( ) applies
to K20Z1 engine.

1. Turn the ignition switch ON (II).

2. Check the TP SENSOR in the DATA LIST with the

HDS.

Intermittent failure, system is OK at this time.

Check for poor connections or loose terminals at
the TP sensor and the ECM/PCM.

Go to step 3.

3. Turn the ignition switch OFF.

4. Disconnect the TP sensor 3P connector.

5. Turn the ignition switch ON (II).

6. On the wire harness side, measure voltage

between TP sensor 3P connector terminals No. 1
and No. 3.

Go to step 7.

Go to step 15.

7. Turn the ignition switch OFF.

8. On the sensor side, measure resistance between TP

sensor 3P connector terminals No. 2 (No. 1) and
No. 3 (No. 2) with the throttle fully closed.

Go to step 9.

Go to step 16.

Wire side of female terminals

Terminal side of male terminals

Is ther e about 0.5 V when the thr ottle is f ully
closed and about 4.5 V when the thr ottle is f ully
opened?

Is ther e about 5 V ?

Is ther e about 0.5

0.9 k

05/06/27 17:34:18 61S6M040_110_0124

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YES

11-125

TPS

TP SENSOR 3P CONNECTOR

VCC2

TPS

K20A3 engine:

K20Z1 engine:

VCC2

TP SENSOR 3P CONNECTOR

TPS
(RED/BLK)

ECM/PCM CONNECTOR A (31P)

TPS (RED/BLK)

JUMPER WIRE

TP SENSOR 3P CONNECTOR

TPS
(RED/BLK)

9. On the sensor side, measure resistance between TP

sensor 3P connector terminals No. 1 (No. 2) and
No. 2 (No. 3) with the throttle fully closed.

Go to step 10.

Go to step 16.

10. Jump the SCS line with the HDS.

11. Disconnect ECM/PCM connector A (31P).

12. On the wire harness side, check for continuity

between TP sensor 3P connector terminal No. 2
and body ground.

Repair short in the wire between the TP

sensor and the ECM/PCM (A29), then go to step 17.

Go to step 13.

13. Connect ECM/PCM connector terminal A29 to body

ground with a jumper wire.

14. On the wire harness side, check for continuity

between TP sensor 3P connector terminal No. 2
and body ground.

Go to step 22.

Repair open in the wire between the TP

sensor and the ECM/PCM (A29), then go to step 17.

(cont’d)

Terminal side of male terminals

Wire side of female terminals

Is ther e about 5.0 k

Is ther e continuity?

05/06/27 17:34:18 61S6M040_110_0125

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