Bosch BEA 350 - Messages about EAM Exhaust-Gas Analyzer Module

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8.9 Messages about EAM exhaust-gas analyzer module
No. Message Remedy Sectio
4000 Error opening interface
4001 Error writing to interface Software error: Reboot system, if error still present:
4002 Error reading interface Re-copy system software on VSM, replace control 5.23
4003 Error closing interface module PCB 10.27
4004 Exhaust-gas interface not open
4005 Command not allowed at present time
4006 Unexpected / unknown reply
4007 Memory full
4008 Exhaust-gas analyzer module reports
parameter error
4027 Calibration of HC channel outside tolerance
4028 Calibration of CO channel outside tolerance Replacing measuring bank 10.10
4029 Calibration of CO
2
channel outside tolerance
4030 O
2
sensor voltage below minimum Replace O
2
measuring sensor 10.11
allowable level Check continuity of connection cable, replace if necessary 12.1 and 12.4
4031 Supply voltage outside tolerance Check mains voltage, if mains voltage is out of tolerance,
changeover transformer connections accordingly. 10.1
Check interconnecting cable to DMM, replace if necessary 10.2
Check voltage supply 10.3
Replace control module PCB 10.27
Replace measuring bank 10.10
4032 Analyzer part temperature measurement Replace measuring bank 10.10
malfunction
4033 Faulty air-pressure measurement Replace measuring bank 10.10
4034 Insufficient flow Check coarse filters GF1, GF2, GF3 and GF4,
replace if necessary
Check suction power of pump, replace if necessary 10.13 u. 10.14
Check flow sensor, replace if necessary 10.15
Check hosing as per gas circuit diagram 12.5
Clean condensate separator 10.18
4035 No temperature compensation Replace measuring bank 10.10
4036 Recalibrate with calibrating gas Perform recalibration with calibrating gas 4.7.5
4040 Calibration for HC signal outside tolerance
4041 Calibration for CO signal outside tolerance
4042 Calibration for CO
2
signal outside tolerance
4043 Analyzer part does not respond
4044 Incorrect channel assignment Replace measuring bank 10.10
4050 HC channel not calibrated
4051 CO channel not calibrated
4052 CO
2
channel not calibrated
4053 Carbon canister contaminated with Replace carbon canister
HC residues Check cross sensitivity to water vapour 10.12
Replace hosing as per gas circuit diagram 12.5
Clean analyzer chambers, not in warranty cases! 10.9
Replace measuring bank 10.10
4055 Leak test failed Check exhaust-sample probe and hose for cracks
Check hosing as per gas circuit diagram 12.5
Perform leak test of measuring bank, replace 10.7
measuring bank if necessary 10.10
4057 HC residues in gas sampling system Purge exhaust-gas analyzer module with fresh air, 4.7.1
if error still present: replace internal hosing (see gas
circuit diagram) 12.5