Page 79 of 363
JF5111.0
INJECTION
Fault finding - Status and parameter checks
17
E7J 780
engine
Engine stopped, ignition on.NOTES
Order of
operationsFunction to be
checkedAction Bargraph Display and notes Fault finding
6Throttle
position
potentiometer
.No load
# 17
Accelerator
pedal
slightly
depressed
Full load
# 1716 < X < 50
185 < X < 243
DIAG 2
7Pressure sensor
# 01X =Atmospheric pressureDIAG 9
8Coolant
temperature
sensor# 02X = Engine temperature
± 5 °CDIAG 3
9Air
temperature
sensor# 03X = Temperature under
bonnet ± 5 °CDIAG 4
10 Fan assemblyG17*Fan must operateDIAG 17
11Fault warning
lightSwitch
ignition onFault warning light must
illuminate then
extinguishDIAG 19
2
2
2
17-31
Page 103 of 363
Connect the bornier in place of the computer and check the insulation and continuity of the line:
Computer 43 6 Instrument panel
Repair.
JF5111.0
INJECTION
Fault finding - Status and parameter interpretation17
E7J 780
engine
AFTER REPAIRStart the status and parameter check again from the beginning.
DIAG 19
Fiche n° 27
FAULT WARNING LIGHT CIRCUIT
XR25 aid:None
No fault bargraphs should be illuminated.NOTES
Check the condition of the warning light and its feed.
Repair if necessary.
17-55
Page 142 of 363
Connect the bornier in place of the computer and check the insulation and continuity of the line:
Computer 19 6 Instrument panel
Repair.
JSA051.0
INJECTION
Fault finding - Interpretation of XR25 bargraphs17
D7F 710
engine -
35 tracks
Erase the computer memory using G0**.
Try to start the engine. Switch the ignition on, then deal with the other faults.
Remember to carry out a status and parameter check.AFTER REPAIR
Bargraph 12 LH side illuminatedFiche n° 27 side 1/2
FAULT WARNING LIGHT CIRCUIT
XR25 aid:CO, CC- or CC+ line 19 of the computer
12
NoneNOTES
Check the condition of the warning light and its feed.
Repair if necessary.
17-97
Page 149 of 363
JSA051.0
INJECTION
Fault finding - Status and parameter checks
17
D7F 710
engine -
35 tracks
Engine cold, ignition on.NOTES
Order of
operationsFunction to be
checkedAction Bargraph Display and notes Fault finding
6Throttle
position
potentiometer
.No load
# 17
Accelerator
pedal
slightly
depressed
Full load
# 1710 < X < 50
185 < X < 245
DIAG 2
7
Pressure sensor# 01X =Atmospheric pressureDIAG 9
8Coolant
temperature
sensor# 02
X = Engine temperature
± 5 °CDIAG 3
9Air
temperature
sensor# 03
X = Temperature under
bonnet ± 5 °CDIAG 4
10 Fan assemblyG17*Fan must operateDIAG 16
11Fault warning
light Switch
ignition onFault warning light must
illuminate then
extinguishDIAG 18
2
2
2
17-104
Page 172 of 363
Connect the bornier in place of the computer and check the insulation and continuity of the line:
Computer 19 6 Instrument panel
Repair.
JSA051.0
INJECTION
Fault finding - Status and parameter interpretation17
D7F 710
engine -
35 tracks
AFTER REPAIRStart the status and parameter check again from the beginning.
DIAG 18
Fiche n° 27
FAULT WARNING LIGHT CIRCUIT
XR25 aid:None
No fault bargraphs should be illuminated.NOTES
Check the condition of the warning light and its feed.
Repair if necessary.
17-127
Page 212 of 363
Connect the bornier in place of the computer and check the insulation and continuity of the line.
Computer 43 6 Instrument panel
Repair.
JSA052.0
INJECTION
Fault finding - Interpretation of XR25 bargraphs17
D7F 710
engine -
55 tracks
Erase the computer memory using G0**.
Try to start the engine. Switch the ignition on, then deal with the other faults.
Remember to carry out a status and parameter check.AFTER REPAIR
Bargraph 12 LH side illuminatedFiche n° 27 side 1/2
FAULT WARNING LIGHT CIRCUIT
XR25 aid:CO, CC- or CC+ line 43 of the computer
12
NoneNOTES
Check the condition of the warning light and its feed.
Repair if necessary.
17-169
Page 219 of 363
JSA052.0
INJECTION
Fault finding - Status and parameter checks
17
D7F 710
engine -
55 tracks
Engine stopped, ignition on.NOTES
Order of
operationsFunction to be
checkedAction Bargraph Display and notes Fault finding
6Throttle
position
potentiometer
.No load
# 17
Accelerator
pedal
slightly
depressed
Full load
# 1710 < X < 50
185 < X < 245
DIAG 2
7Pressure sensor
# 01X = Atmospheric
pressureDIAG 9
8Coolant
temperature
sensor# 02X = Engine temperature
± 5 °CDIAG 3
9Air
temperature
sensor# 03X = Temperature under
bonnet ± 5 °CDIAG 4
10 Fan assemblyG17*The fan must operateDIAG 17
11 Fault warning
lightSwitch
ignition onThe fault warning light
must illuminate then
extinguishDIAG 19
2
2
2
17-176
Page 243 of 363
Connect the bornier in place of the computer and check the insulation and continuity of the line:
Computer 43 6 Instrument panel
Repair.
JSA052.0
INJECTION
Fault finding - Status and parameter interpretation17
D7F 710
engine -
55 tracks
AFTER REPAIRStart the status and parameter check again from the beginning.
DIAG 19FAULT WARNING LIGHT CIRCUITFiche n° 27
XR25 aid:None
No fault bargraphs should be illuminated.
NOTES
Check the condition of the warning light and its feed.
Repair if necessary.
17-200