Honda 2004 Odyssey Service Manual page 425

PGM-FI System
DTC Troubleshooting (cont'd)
DTC P1121: TP Sensor Signal Lower Than
Expected
1. Turn the ignition switch ON (II).
2. Check the throttle position with the scan tool or the
HDS.
Is 13.3 %, 0.7 V , or higher indicated when the
throttle is f ully opened?
YES Intermittent failure, system is OK at this
time.
NO Replace the throttle body.
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DTC P1122: TP Sensor Signal Higher Than
Expected
1. Turn the ignition switch ON (II).
2. Check the throttle position with the scan tool or the
HDS.
Is 13.3 %, 0.7 V , or less indicated when the
throttle is f ully closed?
YES Intermittent failure, system is OK at this
time.
NO Replace the throttle body.