JLG 400S Service And Maintenance Manual page 259

Deutz Blink
SPN FMI
Code Code
524065 1 1566 892
524065 2 1598 892
524065 3 1569 892
524065 4 1570 892
3121671
Table 3-16. Deutz Engine Fault Codes
Description
The realitiv pressure value of the exhaust
gas from the urea cat upstream sensor is
less than an applicable minimum pressure
threshold
Comparison of urea cat upstream exhaust
gas- and environment pressure, the
difference should not exceed a certain limit
abs(UCatUsP_pDiffEnvCat_mp) > Thresh-
old
voltage of pressure sensor upstream SCR >
voltage high limit
voltage of pressure sensor upstream SCR <
voltage low limit
SECTION 3 - CHASSIS & TURNTABLE
Possible Cause
sensed pressure upstream SCR catalyst >
physical high range limit of (exhaust volume
flow)
UCatUsP_pRelFlt_mp < UCatUsP_pMin_mp
absolute value of difference between sensed
pressure upstream SCR catalyst and
environmental pressure > limit
abs(UCatUsP_pDiffEnvCat_mp) > Threshold
voltage of pressure sensor upstream SCR >
volt- age high limit
voltage of pressure sensor upstream SCR <
volt- age low limit
Action
Check correct connection from exhaust line to
pressure sensor upstream SCR catalyst:
leakage?
Check electric connector: 4h pin open / new
connector type used? pressure exchange
from inside electrical connector with the
environment possible
Check exhaust line: any leakages upstream of
SCR catalyst?
Check wiring of pressure sensor upstream SCR
catalyst
Exchange pressure sensor upstream SCR cata-
lyst
Check calculated exhaust volume flow of
engine within EDC: SCR_dvolSCRUs pausible?
If not:
Check T sensor upstream SCR catalyst, check
complete engine air path: EGR-Valve,
Intake throttle, turbocharger, piping for leak-
age and function
Check SCR catalyst: Broken? Exchange SCR-
Catalyst
Check electric connector: 4h pin open / new
connector type used?
pressure exchange from inside electrical
connector with the environment possible?
water in sensor?
sensor frozen?
Check wiring of pressure sensor upstream SCR
catalyst
Exchange pressure sensor upstream SCR
catalyst
Check intake manifold pressure sensor
(Air_pCACDs)
Check ambient pressure sensor (EnvP_p)
Check wiring of pressure sensor upstream SCR
catalyst
Check pressure sensor upstream SCR catalyst
Exchange pressure sensor upstream SCR
catalyst
Check wiring of pressure sensor upstream SCR
catalyst. Check pressure sensor
upstream SCR catalyst. Exchange pressure
sensor upstream SCR catalyst
3-201