Is the voltage OK?
Step 1 (When indicating C44/P0135:)
1) Turn the ignition switch OFF.
2) Remove the seat. (!DL650K4 7-4)
3) Check the HO2 sensor for loose or poor contacts.
If OK, then measure the HO2 sensor resistance.
4) Disconnect the HO2 sensor coupler and measure the resis-
tance between terminals.
NOTE:
* Temperature of the sensor affects resistance value largely.
* Make sure that the sensor heater is at correct temperature.
$ HO2 heater resistance: 11 – 15 Ω at 23 °C (73.4 °F)
(White – White)
# 09900-25008: Multi-circuit tester set
) Tester knob indication: Resistance (Ω)
Is the voltage OK?
YES
• W/G wire or B/Br wire open or shorted to
ground, or poor 6 or B connection.
• If wire and connection are OK, intermittent trou-
ble or faulty ECM.
• Recheck each terminal and wire harness for
open circuit and poor connection.
• Replace the ECM with a known good one, and
inspect it again.
NO Replace the HO2 sensor with a new one.
ECM coupler (Harness side)
2
1
YES Go to Step 2.
NO Replace the HO2 sensor with a new one.
1
13-42 DL650K7/AK7 (’07-MODEL)
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877-999-5686
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