Honda Accord 2008 Manual page 414

07/11/02 09:03:21 61TA0000_110_0095
DTC P0134: A/F Sensor (Sensor 1) Heater
System Malfunction
NOTE:
• Before you troubleshoot, record all freeze data and
any on-board snapshot, and review the general
troubleshooting information (see page 11-3).
• If the vehicle was out of fuel and the engine stalled
before this DTC was stored, refuel and clear the DTC
with the HDS.
• If DTC P0135 is stored at the same time as DTC P0134,
troubleshoot DTC P0135 first, then recheck for DTC
P0134.
1. Turn the ignition switch to ON (II).
2. Clear the DTC with the HDS.
3. Start the engine, and let it idle without load (A/T in
P or N, M/T in neutral) until the radiator fan comes
on.
4. Check for Temporary DTCs or DTCs with the HDS.
Is DT C P0134 indicated?
−
YES Go to step 5.
NO − Intermittent failure, the system is OK at this
time. Check for poor connections or loose terminals
at the A/F sensor (Sensor 1), the PGM-FI subrelay,
and the ECM/PCM.
5. Turn the ignition switch to LOCK (0).
6. Replace the A/F sensor (Sensor 1) (see page
11-225).
7. Turn the ignition switch to ON (II).
8. Reset the ECM/PCM with the HDS.
9. Do the ECM/PCM idle learn procedure (see page
11-343).
10. Check for Temporary DTCs or DTCs with the HDS.
Is DT C P0134 indicated?
YES − Check for poor connections or loose
terminals at the A/F sensor (Sensor 1), the PGM-FI
subrelay, and the ECM/PCM, then go to step 1.
−
NO Go to step 11.
11. Monitor the OBD STATUS for DTC P0134 in the
DTCs MENU with the HDS.
Does the screen indicate PASSED?
−
YES Troubleshooting is complete. If any other
Temporary DTCs or DTCs were indicated in step 10,
go to the indicated DTC's troubleshooting.
NO − If the screen indicates FAILED, check for poor
connections or loose terminals at the A/F sensor
(Sensor 1), the PGM-FI subrelay, and the ECM/PCM,
then go to step 1. If the screen indicates NOT
COMPLETED, keep idling until a result comes on.
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