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5-2

2. TROUBLESHOOTING WITH 

Dr. H

• DTC (DIAGNOSTIC TROUBLE

CODE) CHECK

1. Remove the engine cover and the electric part cover

(Section 4 of the base manual).

2. Disconnect the 4P (Red) connector and connect the

Dr. H to the data link connector (DLC).

3. Turn the ignition switch ON and check the DTC

shown on the Dr. H.

Refer to the Dr. H's operation manual for how to use
the Dr. H.

• WHEN USING Dr. H DURING

CRUISING

1. Remove the engine cover and the electric part cover

(Section 4 of the base manual).

2. Remove the cap from the under cover front bracket.

Route the extension wire through the front cover
bracket.

• Set the grommet on the under cover front bracket

securely.

3. Disconnect the red 4P connector from the DLC

(Data Link Connector) and secure the DLC wire as
sown.

• Route the extension wire of the tester in the posi-

tion shown so that it does not interfere with the
parts.

4. Connect the extension wire to the DLC.

4P CONNECTOR
(RED)

TESTER WIRE

DATA LINK 
CONNECTOR (DLC)

CAP

EXTENSION WIRE
OF TESTER

CLAMP

DLC

UNDER COVER
FRONT BRACKET

TESTER WIRE

Содержание BF135A

Страница 1: ...BF135A BF150A...

Страница 2: ...cal photocopying record ing or otherwise without prior written permission of the publisher This includes text figures and tables As you read this manual you will find information that is preceded by a...

Страница 3: ...P SENSORTROUBLESHOOTING 5 17 CKP SENSORTROUBLESHOOTING 5 19 ECT SENSOR 1TROUBLESHOOTING 5 22 TP SENSORTROUBLESHOOTING 5 23 CMP SENSORTROUBLESHOOTING 5 25 IAT SENSORTROUBLESHOOTING 5 27 BARO SENSORTROU...

Страница 4: ...it tester Note that the tester probe must agree with the connector terminal of the dig ital circuit tester not to apply excessive force to the con nector terminal 1 Turn the ignition switch ON and che...

Страница 5: ...ine cover and the electric part cover Section 4 of the base manual 2 Remove the cap from the under cover front bracket Route the extension wire through the front cover bracket Set the grommet on the u...

Страница 6: ...onnector DLC 3 Turn the ignition switch ON 4 Clear the DTC using the Dr H Refer to the Dr H s operation manual for how to use the Dr H When abnormality remains in the system the DTC cannot be cleared...

Страница 7: ...AP sensor Faulty ECM 4 1 MIL stays ON CKP sensor No pulse Open short circuit in CKP sensor wire 5 19 CKP sensor Faulty ECM 4 2 MIL stays ON CKP sensor Abnormal pulse Faulty CKP sensor 5 21 Faulty ECM...

Страница 8: ...TEC solenoid valve 5 31 Abnormal output BF150A only Faulty VTEC solenoid valve Faulty ECM 23 1 MIL comes ON Knock sensor Abnormal detection Open short circuit in knock sensor wire 5 32 Faulty knock se...

Страница 9: ...1 2 MIL comes ON ECT sensor 3 Voltage too high Open circuit in ECT sensor 3 wire 5 42 Faulty ECT sensor 3 Faulty ECM 142 1 MIL comes ON EOP switch Open short circuit in EOP switch wire 5 43 Abnormal s...

Страница 10: ...fuse box and the power trim tilt switch or power tilt switch After repair replace the No 3 fuse 2 Main power line check 1 Disconnect the remote control harness 14P connector 2 Measure the voltage betw...

Страница 11: ...No 3 Yellow Black terminal of the fuse box side 3P connector and the engine ground Is there the battery voltage YES Go to the step 3 NO The PGM FI main relay is faulty or the fuse box is faulty 3 Turn...

Страница 12: ...s wire 5 MIL power line check 1 Turn the ignition switch OFF and disconnect the fuse box 3P connector 2 Turn the ignition switch ON Measure the voltage between the No 2 Yellow Red terminal of the fuse...

Страница 13: ...n switch ON Measure the voltage between the respective terminals of the No 2 Yellow Black and No 6 Yellow Black terminals of the ECM connector C and the engine ground Is there the battery voltage YES...

Страница 14: ...Repair open in the main harness 6 Check for the continuity between the service check connector No 1 Black terminal and the engine ground Is there the continuity YES Perform 3 DTC recheck NO Repair op...

Страница 15: ...2 Connect the Yellow Green terminal of the buzzer to the Black terminal with a jumper wire to short 3 Turn the ignition switch ON and check that the buzzer sounds Does the buzzer sound YES Repair ope...

Страница 16: ...and the engine ground Is there the battery voltage YES Go to the step 3 NO Repair open in the main wire harness 3 Turn the ignition switch OFF and disconnect the ECM connector B 4 Check for the contin...

Страница 17: ...harness 5 Oil pressure indicator line check 1 Turn the ignition switch OFF Disconnect the Yellow terminal of the indicator light and connect the Black terminal to short 2 Turn the ignition switch ON...

Страница 18: ...there the continuity YES Go to the step 4 NO Repair open in the main wire harness 4 Disconnect the ECM connector B 5 Check for the continuity between the No 13 Black Blue terminal of the ECM harness s...

Страница 19: ...line check NO Repair open in the wire of the meter harness 3 Tachometer pulse line check 1 Turn the ignition switch OFF and disconnect the ECM connector B 2 Disconnect the remote control harness 14P c...

Страница 20: ...d voltage 0 22 to 3 15V YES Temporary failure Disappeared NO Perform 2 MAP sensor signal line short circuit test 2 MAP sensor signal line short circuit test 1 Turn the ignition switch OFF and disconne...

Страница 21: ...ECM harness side connector B Is there the continuity YES Perform 4 MAP sensor ground line open circuit check NO Repair open in the wire between the MAP sensor and the ECM 4 MAP sensor ground line open...

Страница 22: ...duction test 1 Connect the Dr H and clear the DTC once If the DTC can not be cleared go on the troubleshooting 2 Start the engine and let it run at idling under no load 3 Check the DTC using the Dr H...

Страница 23: ...it check 1 Turn the ignition switch OFF Check for continuity between the No 3 Blue terminal of the CKP sensor harness side 3P connector and the engine ground Is there the continuity YES Perform 6 CKP...

Страница 24: ...is abnormal 1 Symptom reproduction test 1 Connect the Dr H and clear the DTC once If the DTC can not be cleared go on the troubleshooting 2 Start the engine and let it run at idling under no load 3 Ch...

Страница 25: ...eplace the ECT sensor 1 and recheck DTC 6 2 ECT sensor 1 voltage is high 1 Symptom reproduction test 1 Connect the Dr H and clear the DTC once If the DTC can not be cleared go on the troubleshooting 2...

Страница 26: ...ement 0 08 4 92V YES Temporary failure Disappeared NO Perform 2 TP sensor signal line short cir cuit check 2 TP sensor signal line short circuit check 1 Turn the ignition switch OFF and disconnect the...

Страница 27: ...ir cuit check 3 TP sensor power line open circuit check 1 Turn the ignition switch ON Measure the voltage between the No 3 Brown White terminal of the TP sensor harness side 3P connector and the engin...

Страница 28: ...no load 3 Check the DTC using the Dr H Does the DTC 8 1 appear YES Check the pulse plate If it is normal per form 2 CMP sensor power line check If it is abnormal replace the pulse plate and recheck NO...

Страница 29: ...P sensor check 1 Connect the Dr H and clear the DTC once 2 Start the engine and let it run at idling under no load Check the DTC using the Dr H Does the DTC 8 1 appear YES Replace the CMP sensor and r...

Страница 30: ...recheck DTC 10 2 IAT sensor voltage is high 1 Symptom reproduction test 1 Connect the Dr H and clear the DTC once If the DTC can not be cleared go on the troubleshooting 2 Turn the ignition switch ON...

Страница 31: ...sing the Dr H Is the measurement voltage 1 58 4 49V YES Temporary failure Disappeared NO Perform 2 BARO sensor signal line short circuit check 2 BARO sensor signal line short circuit check 1 Turn the...

Страница 32: ...BARO sensor harness side 3P connector and the engine ground Is the measured voltage 4 75 5 25V YES Repair open in the wire between the BARO sensor and the engine ground NO Repair open in the wire bet...

Страница 33: ...ck for the continuity between the IAC valve No 1 terminal and the body ground Is there the continuity YES Replace the IAC valve NO Go to the step 2 2 Check for the continuity between the IAC valve No...

Страница 34: ...s by run ning the engine at 3 000 min 1 rpm under no load 3 Disconnect the neutral switch 2P connector 4 Increase the engine speed gradually and run the engine at 4 500 min 1 rpm for a few seconds 5 C...

Страница 35: ...an not be cleared go on the troubleshooting 2 Start the engine and warm it up for 5 minutes or more by running the engine at 5 000 min 1 rpm or more under no load 3 Check the DTC again with the Dr H D...

Страница 36: ...re Disappeared 2 A F heater relay check 1 Turn the ignition switch OFF and disconnect the A F sensor 4P connector 2 Turn the ignition switch ON Measure the voltage between the No 3 White terminal of t...

Страница 37: ...n the A F heater relay and the ECM 9 Check for the continuity between the No 3 White terminal of the A F heater relay harness side 4P con nector and the No 3 White terminal of the A F sen sor harness...

Страница 38: ...the engine and warm it up for 5 minutes or more by running the engine at 3 000 min 1 rpm under no load 3 Check the DTC again using the Dr H Does the DTC 41 4 appear YES Perform 2 A F heater relay chec...

Страница 39: ...re between the A F heater relay and the ECM 9 Check for the continuity between the No 3 White terminal of the A F heater relay harness side 4P con nector and the No 3 White terminal of the A F sen sor...

Страница 40: ...and the engine ground and between the No 4 White terminal of the ECM connector C and the engine ground Is there the continuity YES Repair short in the wire between the A F sensor and the ECM NO Perfo...

Страница 41: ...between the No 1 White Black terminal of the A F sensor harness side 4P connector and the No 4 White Black ter minal of the ECM connector A Is there the continuity YES Go to the step 3 NO Repair open...

Страница 42: ...good ECM and recheck DTC 48 7 A F sensor C current is abnormal 1 Symptom reproduction test 1 Connect the Dr H and clear the DTC once If the DTC can not be cleared go on the troubleshooting 2 Start the...

Страница 43: ...temperature using the Dr H Does the measurement correspond to the engine coolant temperature YES Substitute a known good ECM and recheck NO Replace the ECT sensor 2 DTC 140 2 ECT sensor 2 voltage is h...

Страница 44: ...tion switch ON 3 Measure the ECT sensor 3 voltage using the Dr H Is the measured voltage 0 08 4 99V YES Temporary failure Disappeared NO Perform 2 ECT sensor 3 signal line short circuit check 2 ECT se...

Страница 45: ...ground line open circuit check NO Repair open in the wire between the ECT sensor 3 and the ECM 3 ECT sensor 3 ground line open circuit check 1 Connect the ECM connector B 2 Check for continuity betwee...

Страница 46: ...ire between the EOP switch and the ECM 3 EOP switch signal line short circuit check 1 Turn the ignition switch OFF Disconnect the EOP switch 2P connector and the ECM connector A 2 Check for the contin...

Страница 47: ...nsor 4 signal line short circuit check 2 ECT sensor 4 signal line short circuit check 1 Turn the ignition switch OFF Disconnect the ECT sensor 4 connector and the ECM connector B 2 Check for the conti...

Страница 48: ...und line open circuit check NO Repair open in the wire between the ECT sensor 4 and the ECM 3 ECT sensor 4 ground line open circuit check 1 Connect the ECM connector B 2 Check for the continuity betwe...

Страница 49: ...2008 66ZY600Z 2008 02...

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