Service manual

G420F(FE) Service Manual Chapter 9. Advanced Diagnostics 300
Table 2. Diagnostic Fault Codes (Flash Codes) cont’d.
DFC PROBABLE FAULT FAULT ACTION *
CORRECTIVE ACTION
FIRST CHECK
612
(65)
APP2RangeLow
APP2 sensor voltage out of range
low, normally set if the APP2
signal has shorted to ground,
circuit has opened or sensor has
failed
TurnOnMil
Check foot pedal connector
• Check APP2 signal at SECM PIN
B16
621
(62)
APP1RangeHigh
APP1 sensor voltage out of range
high, normally set if the APP1
signal has shorted to power or the
ground for the sensor has opened
(1) TurnOnMil
(2) CheckEngine Light
Check foot pedal connector
• Check APP1 signal at SECM PIN B7
622
(66)
APP2RangeHigh
APP2 sensor voltage out of range
high, normally set if the APP2
si
g
nal has shorted to power or the
ground for the sensor has opened
TurnOnMil
Check foot pedal connector
• Check APP2 signal at SECM PIN
B16
631
(63)
APP1AdaptLoMin
Learned idle end of APP1 sensor
range lower than expected
None
Check APP connector and pins for
corrosion
• Cycle the pedal several times and
check APP1 signal at SECM Pin B7
632
(67)
APP2AdaptLoMin
Learned idle end of APP2 sensor
range lower than expected
None
Check APP connector and pins for
corrosion
• Cycle the pedal several times and
check APP2 signal at SECM Pin B16
641
(64)
APP1AdaptHiMax
Learned full pedal end of APP1
sensor range higher than
expected
None N/A
642
(68)
APP2AdaptHiMax
Learned full pedal end of APP2
sensor range higher than
expected
None N/A
651
APP1AdaptHiMin
Learned full pedal end of APP1
sensor range lower than expected
None N/A
652
APP2AdaptHiMin
Learned full pedal end of APP2
sensor range lower than expected
None N/A
661
APP1AdaptLoMax
Learned idle end of APP1 sensor
range higher than expected
None N/A
662
APP2AdaptLoMax
Learned idle end of APP2 sensor
range higher than expected
None N/A
691
(69)
APP_Sensors_Conflict
APP position sensors do no not
track well, intermittent connections
to APP or defective pedal
assembly
(1) TurnOnMil
(2) Level1PowerLimit
Check APP connector and pins for
corrosion
• Cycle the pedal several times and
check APP1 signal at SECM Pin B7
• Cycle the pedal several times and
check APP2 signal at SECM Pin B16
(*) Fault actions shown are default values specified by the OEM.