Innova FORD CODE READER Mode D'emploi page 60

Retrieving Codes
FAULT CODE DEFINITIONS FOR EEC-IV SYSTEMS (139 - 181)
TEST
CODE CONDITION
139 C
141 R
144 C
157 C
158 O, C
159 O, R
167 R
171 C
171 C
172 R, C
173 R, C
174 C
175 C
175 C
176 C
176 R*
177 C
177 *
178 C
179 C
179 C
181 C
57
FAULT CODE DEFINITION
(Cars ONLY): HEGO (HO2S) sensor switch
fault
Flexible fuel control / fuel system lean
HEGO (HO2S) sensor switch fault
Mass Air Flow sensor fault, low voltage
Mass Air Flow sensor fault, high voltage
Mass Air Flow sensor fault, above or below
normal
Throttle Position sensor fault during
dynamic response test
(Cars ONLY): HEGO (HO2S) sensor
fault/not switching, or fuel system at
adaptive limits
(Trucks ONLY): HEGO (HO2S) sensor
fault/not switching
HEGO (HO2S) sensor fault/lean
HEGO (HO2S) sensor fault/rich
(Cars ONLY): HEGO switching time slow
(Cars ONLY): HEGO (HO2S) sensor
fault/not switching, or fuel system at
adaptive limits
(Trucks ONLY): HEGO (HO2S) sensor
fault/not switching
HEGO (HO2S) sensor fault/always lean
Insufficient TP change during no oxygen
sensor switch detected
HEGO (HO2S) sensor fault/always rich
No oxygen sensor switch detected
(Cars ONLY): HEGO switching time slow
(Cars ONLY): Fuel system at lean adaptive
limit at partial throttle / system rich
(Trucks ONLY): HEGO (HO2S) sensor
fault unable to switch / rich during part
throttle
(Cars ONLY): Fuel system at rich adaptive
limit at partial throttle / system lean
4
Chapter 4