Honda CBF600SA Service Manual page 152

Manuals by Motomatrix / www.motomatrix.co.uk / The Solution For Lost Motorcycle Coded Keys.
FUEL SYSTEM (PGM-FI)
2. MAP Sensor Output Voltage Inspection
Connect the ECM test harness to ECM connec-
tors (page 5-14).
Turn the ignition switch ON and engine stop
switch "
Measure the voltage at the test harness termi-
nals.
The MAP sensor voltage should be changed
after engine started.
CONNECTION: B9 (+) – A18 (–)
Is the voltage within 2.7 – 3.1 V?
YES
NO
3. MAP Sensor Output Voltage Inspection At Idle
Start the engine.
Measure the voltage at the test harness termi-
nals.
CONNECTION: B9 (+) – A18 (–)
STANDARD:
Is the voltage less than 2.7 V?
YES
NO
MIL 7 BLINKS (ECT SENSOR)
• Before starting the inspection, check for loose or
poor contact on the ECT sensor 3P (Black) con-
nector and ECM 33P connectors, then recheck
the MIL blinking.
1. ECT Sensor Output Voltage Inspection
Turn the ignition switch OFF.
Connect the test harness to ECM 33P connectors
(page 5-14).
Turn the ignition switch ON and engine stop
switch "
Measure the voltage at the test harness termi-
nals.
CONNECTION: B13 (+) – A18 (–)
STANDARD:
Is the voltage within 2.7 – 3.1 V?
YES
NO
5-38
email: info@motomatrix.co.uk
".
– GO TO STEP 3.
– Faulty MAP sensor
2.7 V maximum
– Replace the ECM with a known good
one, and recheck; refer to Key Registra-
tion Procedures (page 21-6)
– Faulty MAP sensor
".
2.7 – 3.1 V (20°C/68°F)
– Intermittent failure
– GO TO STEP 2.
TEST HARNESS PIN BOX
(A TERMINALS)
(A18)
TEST HARNESS PIN BOX
(B TERMINALS)
TEST HARNESS PIN BOX
(A TERMINALS)
(A18)
TEST HARNESS PIN BOX
(B TERMINALS)
TEST HARNESS PIN BOX
(A TERMINALS)
(A18) (B13)
TEST HARNESS PIN BOX
(B TERMINALS)
(B9)
(B9)