Deutz Engine Fault Codes - JLG 400S Service And Maintenance Manual

SECTION 3 - CHASSIS & TURNTABLE
Deutz Blink
SPN FMI
Code Code
29 2 978 1-2-6
29 3 932 1-2-6
29 4 937 1-2-6
91 3 935 2-2-6
3-158
Table 3-16. Deutz Engine Fault Codes
Description
Diagnostic fault check of synchronism of
hand throttle and Low idle switch (LIS).
Diagnostic fault check of short circuit to
sup- ply voltage
(signal range check high) of acceleration
pedal signal.
Diagnostic fault check of short circuit to
ground (signal range check low) of
acceleration pedal signal
Analog accelerator pedal sensor 1 or
double accelerator pedal sensor: the
voltage measured by ECU is out of the
target range or the calculated pedal
position is implausible compared with the
position of the second pedal
Possible Cause
Plausibility error between sensor and idle
switch
The signal exceeds the applicable threshold;
signal range violation
The signal is below the applicable threshold;
signal range violation
Sensor defect.
Short cut to battery or open loop.
Action
Check exhaust temperature sensor upstream
of
SCR-catalyst (SCR_tSensUCatUsT): plausible
compared to Exh_tOxiCatUs & Exh_tOxiCatDs
e.g. when engine has idled for
20 minutes?
=> Run stand-still to remove crystallisation
and to reset the DFC
Threshold for error detection is an internal ECU
threshold.
The accelerator pedal must have detected full
load and idle plausibility at least once.
If the signal is below the applicable threshold
APP_uRawSRCHiHTLIS_C, the signal range
violation is reset
after the healing debouncing.
In case when the CCP is active (CCP_stActive
=
1)and the reading from the EEPROM
memory is successful, the signal is below the
threshold APP_uHTLISCCPHi[1], a signal
range violation is reset
after debouncing.
If the signal exceeds the applicable threshold
APP_uRawSRCLoHTLIS_C, the signal range
violation is reset
after the healing debouncing.
In case when the CCP is active (CCP_stActive
=
1)and the reading from the EEPROM
memory is successful, the signal exceeds the
threshold APP_uHTLISCCPLo[1], a signal
range violation is reset
after debouncing.
Check cabling, check accelerator pedal sensor
and if necessary replace it, check
connection cable and if necessary repair or
replace it.
If the signal is below the applicable threshold
APP_uRaw1SRCHigh_C, the signal range
violation is reset after
the healing debouncing.
3121671