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 (1) If the wiring is not correct:
 - repair the above wiring.
 (2) If the wiring is correct: R - disconnect the harness J11 from the ECU (4000KS). R - do a visual inspection of the harness connector and receptacle. R Look for contamination or oxidation or pins that have damage. R - if you find damage, repair or replace as required. R - clean the connector and receptacle with a bristle brush and R stoddard solvent (Material No. CP2011) (Ref. AMM TASK 73-21-50-210-R 002). R - do a check of the ECU cable resistance between: R
 . pins 37 and 38 (160 to 250 Ohms) . pins 37 and 19 (> 10 Megohms) . pin 37 and the ground (> 10 Megohms).
 (a) If the resistance values are in the specified limits:
 - replace the ECU (4000KS) (Ref. AMM TASK 73-21-60-000-001) and (Ref. AMM TASK 73-21-60-400-001).
 (b) If the resistance values are out of the specified limits: R - disconnect the harness CJ11 at the 6 o'clock junction box. R - do a visual inspection of the harness connector and receptacle. R Look for contamination or oxidation or pins that have damage. R - if you find damage, repair or replace as required. R - clean the connector and receptacle with a bristle brush and R stoddard solvent (Material No. CP2011) (Ref. AMM TASK 73-21-50-R 210-002). R - do a check of the resistance of the cable CJ11R between: R
 . pins 25 and 26 (160 to 250 Ohms) . pins 25 and 13 (> 10 Megohms) . pin 25 and the ground (> 10 Megohms).
 1 If the resistance values are in the specified limits:
_
 - replace the harness J11 (Ref. AMM TASK 73-21-50-000-044) and (Ref. AMM TASK 73-21-50-400-044).
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 2 If the resistance values are out of the specified limits:

_ R - disconnect the harness CJ11R at the T25 temperature sensor. R - do a visual inspection of the harness connector and R receptacle. Look for contamination or oxidation or pins that R have damage. R - if you find damage, repair or replace as required. R - clean the connector and receptacle with a bristle brush and R stoddard solvent (Material No. CP2011) (Ref. AMM TASK 73-21-R 50-210-002). R - do a check of the T25 sensor resistance between: R
 . pins 1 and 2 (160 to 250 Ohms) . pin 1 and the ground (> 10 Megohms).
 a If the resistance values are in the specified limits:
_
 - replace the harness CJ11R (Ref. AMM TASK 73-21-50-000-026) and (Ref. AMM TASK 73-21-50-400-026).
 b If the resistance values are out of the specified limits:
_
 - replace the T25 temperature sensor (Ref. AMM TASK 73-21-20-000-002) and (Ref. AMM TASK 73-21-20-400-002).
 B. Do the test given in Para. 3.A.
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 TASK 73-20-00-810-855
 Loss of the T25 Sensor Signal through the Channel B on Engine 1
 1. Possible Causes
_______________
 - harness J12

 - ECU (4000KS)

 - harness CJ12R

 - T25 temperature sensor

 2. Job Set-up Information
______________________
R A. Fixtures, Tools, Test and Support Equipment

R -------------------------------------------------------------------------------R REFERENCE QTY DESIGNATION
R -------------------------------------------------------------------------------
R No specific bristle brush

R B. Consumable Materials

R -------------------------------------------------------------------------------R REFERENCE DESIGNATION
R -------------------------------------------------------------------------------
R Material No. CP2011 *
R stoddard solvent (Ref. 70-30-00)

R C. Referenced Information

 -------------------------------------------------------------------------------
REFERENCE DESIGNATION
 -------------------------------------------------------------------------------
R  AMM AMM AMM AMM AMM AMM AMM AMM AMM  73-21-20-000-002 73-21-20-400-002 73-21-50-000-028 73-21-50-000-045 73-21-50-210-002 73-21-50-400-028 73-21-50-400-045 73-21-60-000-001 73-21-60-400-001 
AMM  73-29-00-710-040 
ASM  73-25/18

 F EEFF : ALL E E ECES Removal of the T25 Temperature SensorInstallation of the T25 Temperature SensorRemoval of the CJ12R HarnessRemoval of the HJ12 Harness Visual Inspection of the Wiring HarnessesInstallation of the CJ12R HarnessInstallation of the HJ12 HarnessRemoval of the Electronic Control Unit (ECU)(4000KS)Installation of the Electronic Control Unit (ECU)(4000KS)Operational Test of the FADEC on the Ground (with Engine non Motoring)
　
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