SV650K7/SK7/AK7/SAK7 (’07-MODEL) 47
Step 2 (When indicating C44/P0135:)
1) Connect the HO2 sensor coupler.
2) Insert the needle pointed probes to the HO2 sensor coupler.
3) Turn the ignition switch ON and measure the heater voltage
between W/B wire and ground.
4) If the tester voltage indicates the battery voltage, it is good
condition.
$ Heater voltage: Battery voltage
(
+ W/B –
- Ground)
NOTE:
Battery voltage can be detected only before starting the engine.
" 09900-25008: Multi-circuit tester set
09900-25009: Needle pointed probe set
' Tester knob indication: Voltage (()
Is the voltage OK?
YES
• O/W or W/B wire open or shorted to ground, or
poor
G connection.
• Recheck each terminal and wire harness for
open circuit and poor connection.
• If wire and connection are OK, intermittent trou-
ble or faulty ECM.
• Replace the ECM with a known good one, and
inspect it again.
NO
• Open or short circuit in the W/B wire or O/W
wire.
• Loose or poor contacts on the ECM coupler
(terminal
G) or HO2 sensor coupler.
ECM coupler (Harness side)
2
SAMPLE