
If an obvious cause for DTC P0455 is an engine running during
refueling, erase the DTC P0455 using Hi-Scan and do not
repair the evaporative system. However,the vehicle should be
monitored to find reoccurrence of the concern whichmay come
from actual evaporative system.
P0461
Fuel Level Sensor Circuit
Range/Performance
• Poor connection
• Contaminated, deteriorated or aged FTLS
• Misplaced, bent, loose or corroded connector terminals
• Faulty FTLS
P0462
Fuel Level Sensor Circuit Low
Input
• Open or short to GND between FTLS and ECM
• Short to GND or open in ECM
• Faulty FTLS
P0463
Fuel Level Sensor Circuit High
Input
• Short to battery between FTLS and ECM
• Short to battery
• Faulty FTLS
P0464
Fuel Level Sensor Circuit
Intermittent
• Poor connections between ECTS and ECM
• Misplaced, loose or corroded terminals
• Faulty FTLS
P0501
Vehicle Speed Sensor
Range/Performance
• Open between fuse and wheel speed sensor (WSS)
• Open between WSS and GND
• Open between WSS and ECM
• Short to battery or GND between WSS and ECM
• Faulty WSS
P0506
Idle Control System rpm Lower
than Expected
• High resistance between injector fuse and IAC valve
• High resistance between IAC and ECM
• Faulty IAC valve
• Carbon fouled throttle plate
If any TPS, MAFS, fuel injector or IAC valve circuit codes (or
pending codes)are present, do all repairs associated with them
before proceeding with thistrouble area.
P0507
Idle Control System rpm Higher
than Expected
• Improperly adjusted accelerator cable
• Air leak in intake system between head and throttle plate
• Faulty PCV valve or PSV
• Poor connections in TPS circuit or faulty TPS
• High resistance between IAC valve and ECM
• Faulty IAC valve
If any codes relating to TPS, MAFS, fuel injector or IAC valve
are present,do all repairs associated with them before
proceeding with this troubleshootingarea.
P1134
HO2S Circuit - Transition Switch
Malfunction/Slip (Bank 1,
Sensor 1)
• HO2S Deteriorated
• Foreign Material Deposit
Page 12 of 14
24.04.2008
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