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Honda Fit/Jazz - DTC Troubleshooting: P0137 (63-1) (L12A/L13A 5MT without ETCS)

Online Honda Fit/Jazz 2002-2005 Workshop repair manual used by professionals.

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DTC Troubleshooting: P0137 (63-1)

DTC P0137 (63-1): Secondary HO2S (Sensor 2) Circuit Low Voltage


1.Reset the ECM/PCM.

2.Start the engine. Hold the engine at 3,000 rpm (min-1) with no load (in Park or neutral) until the radiator fan comes on.

3.Check the secondary HO2S (Sensor 2) output voltage at 3,000 rpm (min-1) with the HDS or the scan tool.

Is there 0.3 V or less?


YES - Go to 4.


NO - Intermittent failure, system is OK at this time. Check for poor connections or loose terminals at the secondary HO2S (Sensor 2) and at the ECM/PCM.n


4.Turn the ignition switch OFF.

5.Disconnect the secondary HO2S (Sensor 2) 4P connector.

6.Turn the ignition switch ON (II).

7.Check the secondary HO2S (Sensor 2) output voltage with the HDS or the scan tool.

Is there 0.3 V or less?


YES - Go to 8.


NO - Replace the secondary HO2S (Sensor 2).n


8.Turn the ignition switch OFF.

9.Disconnect ECM/PCM connector E (31P).

10.Check for continuity between the secondary HO2S (Sensor 2) 4P connector terminal No. 2 and body ground.

IMAGE REPLACED HERE

Is there continuity?


YES - Repair short in the wire between the ECM/PCM (E2) and the secondary HO2S (Sensor 2).n


NO - Update the ECM/PCM if it does not have the latest software, or substitute a known-good ECM/PCM, then recheck. If the symptom/indication goes away with a known-good ECM/PCM, replace the original ECM/PCM.n

5. Disconnect


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