ONBOARD DIAGNOSTIC SYSTEM — OBD II
Your vehicle is equipped with a sophisticated onboard
diagnostic system called OBD II. This system monitors
the performance of the emissions, engine, and automatic
transmission control systems. When these systems are
operating properly, your vehicle will provide excellent
performance and fuel economy, as well as engine emis-
sions well within current government regulations.
If any of these systems require service, the OBD II system
will turn on the “Malfunction Indicator Light” (MIL). It
will also store diagnostic codes and other information to
assist your service technician in making repairs. Al-
though your vehicle will usually be drivable and not
need towing, see your authorized dealer for service as
soon as possible.
CAUTION!
•
Prolonged driving with the MIL on could cause
further damage to the emission control system. It
could also affect fuel economy and driveability.
The vehicle must be serviced before any emissions
tests can be performed.
•
If the MIL is flashing while the engine is running,
severe catalytic converter damage and power loss
will soon occur. Immediate service is required.
Loose Fuel Filler Cap Message
After fuel is added, the vehicle diagnostic system can
determine if the fuel filler cap is possibly loose, improp-
erly installed, or damaged. A “gASCAP” message will be
displayed in the odometer. Tighten the gas cap until a
⬙
clicking
⬙
sound is heard. This is an indication that the
gas cap is properly tightened. Press the odometer reset
button to turn the message off. If the problem persists,
576
MAINTAINING YOUR VEHICLE
Summary of Contents for 2014 Wrangler
Page 1: ...Wrangler O W N E R S M A N U A L 2 0 1 4...
Page 4: ......
Page 9: ...1 INTRODUCTION 7...
Page 12: ......
Page 142: ...140 UNDERSTANDING THE FEATURES OF YOUR VEHICLE...
Page 143: ...3 UNDERSTANDING THE FEATURES OF YOUR VEHICLE 141...
Page 144: ...142 UNDERSTANDING THE FEATURES OF YOUR VEHICLE...
Page 258: ...7 Release Sunrider latch both sides 256 UNDERSTANDING THE FEATURES OF YOUR VEHICLE...
Page 260: ...2 Install rear corner panels 258 UNDERSTANDING THE FEATURES OF YOUR VEHICLE...
Page 303: ...INSTRUMENT CLUSTER 4 UNDERSTANDING YOUR INSTRUMENT PANEL 301...
Page 403: ...4 UNDERSTANDING YOUR INSTRUMENT PANEL 401...
Page 410: ......
Page 492: ...490 STARTING AND OPERATING...
Page 552: ......
Page 653: ...INDEX 10...