192 Fault diagnosis
Diagnostic trouble codes
-P0505,
P0506,
P0507 (contd.)
4
[I~
0 0 0 0
t
Km/h
'l
0000
0000
0000
OOc=J
4 Final check:
20
x1
>20
Km/h
- Clear the diagnostic trouble code.
- Perform a driving cycle:
p
·=
.·
D
3
2
1
• Drive the car at varying engine loads and rpm
until the coolant temperature rises above
60° C ( 140° F), but for at least 1 minute if this
temperature is reached earlier.
• Car speed should exceed
12
mph
(20 km/h)
at some time during the driving cycle.
• Stop the car, apply the handbrake and run the
engine at idling speed.
• Switch off the
NC
and all electrical equip-
ment. If the car has automatic transmission,
select position P.
Allow the engine to stabilize its idling speed
for 10 sec.
• Switch on the
NC
and all electrical equip-
ment. If the car has automatic transmission,
select position D. Allow the engine to stabilize
its idling speed for
1
0 sec.
- Evaluation of driving cycle: Check whether the
diagnostic trouble code has recurred.
Has the diagnostic trouble code recurred?
•
I
YESI
Proceed to
p~ge 282.·
I
NO
I
The remedial measure taken was correct.
Saab 9000
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3
2
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