drzvfr

Does anyone have a procedure for testing the Crank Position Sensor? I did a timing belt change this past weekend and threw a code yesterday morning as the car went into safe mode. Pulled the code and its for the CPS. I haven't gotten in there yet, but I'm hoping I just forgot to hook it back up. In the event it might be bad, I'd love to be able to test this sensor before replacing it blindly.

TIA

speedfoos

iTrader: (17)

Yeah man, I'll get one to you tonight when I get home from work as I don't have access to it here. Give me about 6 hours.

drzvfr

Excellent, I'll be waiting.

Thanks!

speedfoos

iTrader: (17)

What exact code are you throwing? P1381, P1382, P1359? There are several to choose from and I would need the specific code to really drill down into the troubleshooting procedure.

speedfoos

iTrader: (17)

Here you go man, complete with pics!


DTC P0335: CKP Sensor No Signal, DTC P0336: CKP Sensor Intermittent
Interruption, DTC P0339: CKP Sensor Intermittent Interruption
NOTE:Information marked with an asterisk (*) applies to '01-03 models.
Information marked with an asterisk (**) applies to '04 model.


1. Reset the ECM/PCM (see HOW TO RESET THE ECM/PCM ).

2. Start the engine.

Is DTC P0335 and/or P0336* (P0339)* indicated?
YES - Go to step 3.
NO - Intermittent failure, system is OK at this time. Check for poor connections or loose terminals at the CKP sensor and at the ECM/PCM.

3. Turn the ignition switch OFF.

4. Disconnect the CKP sensor 3P connector.

5. Turn the ignition switch ON (II).

6. Measure voltage between CKP sensor 3P connector terminal No. 3 and body ground.

Fig 82


Is there battery voltage?
YES - Go to step 7.
NO - Repair open in the wire between PGM-FI main relay 1 and the CKP sensor.

7. Measure voltage between CKP sensor 3P connector terminal No. 1 and body ground.

Fig 83


Is there about 5 V?
YES - Go to step 8.
NO - Go to step 10.

8. Measure voltage between CKP sensor 3P connector terminals No. 2 and No. 3.

Fig. 84


Is there battery voltage?
YES - Go to step 9.
NO - Repair open in the wire between the CKP sensor and G101.

9. Substitute a known-good CKP sensor and recheck.

10. Is DTC P0335 and/or P0336 (P0339) indicated?

YES - Update the ECM/PCM if it does not have the latest software, or substitute a known-good ECM/PCM, then recheck (see HOW TO SUBSTITUTE OR REPLACE THE ECM/PCM ). If the symptom/indication goes away with a known-good ECM/PCM, replace the original ECM/PCM.
NO - Replace the original CKP sensor (see CKP Sensor Replacement ).
Measure voltage between ECM/PCM connector terminal A7 and body ground.

Fig. 85


Is there about 5 V?
YES - Repair open in the wire between the ECM/PCM (A7) and the CKP sensor.
NO - Go to step 11.

11. Turn the ignition switch OFF.
12. Disconnect ECM/PCM connector A (31P).
13. Check for continuity between ECM/PCM connector terminal A7 and body ground.

Fig. 86


Is there continuity?
YES - Repair short in the wire between the ECM/PCM (A7) and the CKP sensor.
NO - Update the ECM/PCM if it does not have the latest software, or
substitute a known-good ECM/PCM, then recheck (see HOW TO SUBSTITUTE OR
REPLACE THE ECM/PCM ). If the symptom/indication goes away with a known-good
ECM/PCM, replace the original ECM/PCM.

02BLKCIVIC

iTrader: (8)

hey clint!


remember my misfire?

it was a blown head gaskett on my STOCK civic...

speedfoos

iTrader: (17)

LOL - that's fantastic man! I wish someone would come out with a cast iron block for the Civic. Would make things soooo much easier. Bet that was fun changing out. It's my favorite repair to do on these cars!

02BLKCIVIC

iTrader: (8)

lol the H22 engine from the prelude has a cast iron block

drzvfr

Thanks for the great instructions. Didn't end up needing them though. I put the car up on my lift and I was able to unplug the connector without removing anything. Contacts must have been dirty, as I sprayed some brake cleaner on each end and its now working fine, no more codes!

speedfoos

iTrader: (17)

Good to go! Rep is a nice way of saying thanks!

emicha

Anyone has a diagram for testing the Camshaft position sensor on Civic 2001?

Thanks

emicha

Anyone?

Matt_75

Reference connector pictures above. Same type connector for Crank sensor (TDC sensor). Same connector for ECM/PCM except pin 26.

PGM-FI System

DTC Troubleshooting (cont'd)

11-234


DTC 8: TDC Sensor Circuit Malfunction

1. Reset the ECM/PCM (see page 11-168).
2. Start the engine.

Is the MIL on and does it indicate DTC 8?
YES
- Go to step 3.
NO
- Intermittent failure, system is OK at this time. Check for poor connections or loose wires at the TDC sensor and at the ECM/PCM.

1. Turn the ignition switch OFF.
2. Disconnect the TDC sensor 3P connector.
3. Turn the ignition switch ON (II).
4. Measure voltage between the TDC sensor 3P connector terminal No. 3 and body ground.

TDC SENSOR 3P CONNECTOR

Wire side of female terminals

Is there battery voltage?
YES
- Go to step 7.
NO
- Repair open in the wire between the PGM-FI main relay 1 and the TDC sensor.

1. Measure voltage between the TDC sensor 3P connector terminal No. 2 and body ground.

TDC SENSOR 3P CONNECTOR

Wire side of female terminals

Is there about 5 V?
YES
- Go to step 8.
NO
- Go to step 10.

1. Measure voltage between the TDC sensor 3P connector terminals No. 1 and No. 3.

TDC SENSOR 3P CONNECTOR

Wire side of female terminals

Is there battery voltage?
YES
- Go to step 9.
NO
- Repair open in the wire between the TDC sensor and G101.

1. Substitute a known-good TDC sensor and recheck.

Is the MIL on and does it indicate DTC 8?
YES
- Substitute a known-good ECM/PCM and recheck. If symptom/indication goes away, replace the original ECM/PCM.
NO
- Replace the original TDC sensor.


PGM-FI System

DTC Troubleshooting (cont'd)

11-235

1. Measure voltage between ECM/PCM connector terminal A26 and body ground.

ECM/PCM CONNECTOR A (31P)

Wire side of female terminals

Is there about 5 V?
YES
- Repair open in the wire between the ECM/PCM (A26) and TDC sensor.
NO
- Go to step 11.

1. Turn the ignition switch OFF.
2. Disconnect ECM/PCM connector A (31P).
3. Check for continuity between ECM/PCM connector terminal A26 and body ground.

ECM/PCM CONNECTOR A (31P)

Wire side of female terminals

Is there continuity?
YES
- Repair short in the wire between the ECM/PCM (A26) and the TDC sensor.
NO
- Substitute a known-good ECM/PCM and recheck. If symptom/indication goes away, replace the original ECM/PCM.

amartin85

So I have made it to step six of testing the CKP sensor and I am reading 12 Volts with just the ignition turned on, 14 with the engine running and then once I checked what voltage is coming from the sensor, I get 1 volt. Does anyone have any idea what could be causing this? The engine is a used replacement engine and I have already tried the sensor that came off my old engine and an aftermarket part. All three leave me with the same code, so I am assuming it is somewhere in the wiring and not the sensor itself.

Slumpertcivic