Honda BF135A Manual page 175

BF135A•BF150A
-3. Turn the ignition switch OFF and disconnect the ECM
connector B.
-4. Check for the continuity between the No. 3 (Light
green/White) terminal of the data link connector and
the engine ground.
DATA LINK CONNECTOR
LIGHT GREEN/WHITE
VIEWED FROM THE
TERMINAL SIDE
Is there the continuity?
YES – Repair short in the main harness.
NO – Go to the step 5.
-5. Check for the continuity between the No. 3 (Light
green/White) terminal of the data link connector and
the No. 16 (Light green/White) terminal of the ECM
harness side connector B.
ECM CONNECTOR B
VIEWED FROM THE
TERMINAL SIDE
Is there the continuity?
YES – Go to the step 6.
NO – Repair open in the main harness.
-6. Check for the continuity between the service check
connector No. 1 (Black) terminal and the engine
ground.
GND
(BLACK)
VIEWED FROM THE
TERMINAL SIDE
DATA LINK
CONNECTOR
SCS
(LIGHT GREEN/
WHITE)
DATA LINK
CONNECTOR
Is there the continuity?
YES – Perform "3. DTC recheck".
NO – Repair open in the main harness.
3. DTC recheck
-1. Turn the ignition switch OFF and connect the HDS
pocket tester.
-2. Turn the ignition switch ON and check the DTC with
the HDS pocket tester.
Is the main code 0 (either of 0-2, 0-5 or 0-8)?
YES – Substitute a known-good ECM and recheck.
NO – Troubleshoot the problem of the DTC.
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