130
Starting and driving
Limp-home
The engine management system has a
diagnostic feature that checks a number of
internal functions. If a fault is detected in the
throttle valve, the engine management
system will set the throttle system to the
limp-home mode. This means:
• idling control will be poor (uneven idling
since regulated by ignition and fuel
supply)
• engine performance will be reduced
• the cruise control will not function
• the capacity of the A/C compressor will be
limited.
The
"Engine malfunction (CHECK
ENGINE)" indicator illuminates in the main
instrument panel if the diagnostics function
detects a fault in the engine management
system. See page 63. The car should be
checked by a workshop as soon as pos-
sible. We recommend that you contact an
authorised Cadillac workshop.
Important information
concerning petrol-engined cars
The catalytic converter is an emission con-
trol device incorporated in the car’s exhaust
system. It consists of a metal canister with a
honeycomb insert, the cells of which have
walls coated in a catalytic layer (precious
metal alloy).
To ensure that the catalytic converter con-
tinues to function properly, and also to avoid
damage to the converter and its associated
components, the following points must be
observed:
NOTICE
If
"Engine malfunction (CHECK
ENGINE)" starts to flash (indicating that
the engine is seriously misfiring and there
is a risk of catalytic converter damage)
release the accelerator slightly. The
warning light may then either go out or
shine with a steady glow. If the light con-
tinues to flash despite easing off the
accelerator, you may continue to drive the
car. It is however recommended that you
drive the car as gently as allowed by the
current traffic situation. Have the car
checked at a workshop as soon as pos-
sible. We recommend that you contact an
authorised Cadillac workshop.
NOTICE
Use only unleaded petrol. Leaded petrol
is detrimental to the catalyst and oxygen
sensor and will seriously impair the
function of the catalytic converter.
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