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HONDA marine BF135A, Shop Manual, Page: 16 / 49

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HONDA marine BF135A Shop Manual Download Page 16

5-13

-5. Check for continuity between the No. 4 (Yellow/

Black) terminal and the No. 6 (Red/Blue) terminal of
the MIL 6P connector.

Is there the continuity?
YES – Substitute a known-good ECM and recheck.
NO – The MIL is faulty or repair open in the MIL

harness.

3. MIL line check

-1. Turn the ignition switch OFF and disconnect the MIL

6P connector.

-2. Turn the ignition switch ON. Measure the voltage

between the No. 2 (Yellow/Red) terminal of the MIL
6P main harness side connector 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 continuity between the No. 25

(Red/Blue) terminal of the ECM harness side con-
nector B and the No. 4 (Red/Blue) terminal of the
MIL main harness side 6P connector.

Is there the continuity?
YES – Go to the step 5.
NO – Repair open in the main harness.

MIL HARNESS SIDE 6P
CONNECTOR

VIEWED FROM THE
TERMINAL SIDE

MIL HARNESS SIDE
6P CONNECTOR

ECM CONNECTOR B

VIEWED FROM THE
TERMINAL SIDE

MIL 6P CONNECTOR

VIEWED FROM THE
TERMINAL SIDE

YELLOW/BLACK

RED/BLUE

YELLOW/RED

WHITE/BLACK

Summary of Contents for BF135A

Page 1: ...BF135A BF150A...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 49: ...2008 66ZY600Z 2008 02...

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