Component Location Index
CHARGING SYSTEM INDICATOR
(In the gauge control module)
UNDER-HOOD FUSE/RELAY BOX
(Has built-in ELECTRICAL LOAD
DETECTOR [ELD] UNIT)
BATTERY
ALTERNATOR
DRI
Component Location Index
CATALYTIC CONVERTER
Removal/Installation
POWERTRAIN CONTROL MODULE (PCM)
General Troubleshooting information
Replacement
DTC Troubleshooting
DTC P0420: Catalyst System Efficiency Below
Threshold
NOTE:
Before you troubleshoot, record all f
1. Remove the crankshaft and pistons.
2. Check the piston for distortion or cracks.
3. Measure the piston diameter at a point 13 mm
(0.5 in.) from the bottom of the skirt. There are two
standard-size pistons (No Letter or A, and B). The
letter is stamped on the top of the piston. Letters
are also