R . pins 9 and 21 (>1 megohm)

R . pins 10 and 21 (>1 megohm)

R . pin 9 and the ground (>1 megohm)

R . pin 10 and the ground (>1 megohm).

R 1_ If the resistance values are out of the specified limits:
R - replace the harness HJ13 (Ref. AMM TASK 73-21-50-000-046)
R and (Ref. AMM TASK 73-21-50-400-046).

R 2_ If the resistance values are in the specified limits:
R - replace the ECU (4000KS) (Ref. AMM TASK 73-21-60-000-001)
R and (Ref. AMM TASK 73-21-60-400-001).

R (2) If the test does not give the maintenance message EOT SENS, J13, ECU:
R - do a check of the connectors on the harness HJ13 between the ECU
R and the oil temperature sensor for absence of loosening,
R contamination, corrosion or damaged pins or sockets,
R - clean, retighten or replace the harness HJ13 as required (Ref. AMM

 TASK 73-21-50-210-001).
R (a) If nothing is found:
R - replace the oil temperature sensor (Ref. AMM TASK 79-31-40-000-R 001) and (Ref. AMM TASK 79-31-40-400-001).

R 1_ If the fault continues:
R - replace the harness HJ13 (Ref. AMM TASK 73-21-50-000-046)
R and (Ref. AMM TASK 73-21-50-400-046).

R a_ If the fault continues:
R - replace the ECU (4000KS) (Ref. AMM TASK 73-21-60-000-001)
R and (Ref. AMM TASK 73-21-60-400-001).
R

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R  B. Do the test given in Para. 3. 
R  (1) No additional maintenance action is required if the fault is not 
R  confirmed. 
R  (2) Repeat the fault isolation procedure if the fault continues. 
R

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 OIL TEMPERATURE INDICATING SYSTEM - FAULT ISOLATION PROCEDURES
______________________________________________________________
R
 TASK 79-32-00-810-821

R Loss of the Oil Temperature Signal from Sensor 4004EN or Disagree with Oil R Temperature Signal from ECU Oil Temperature Sensor on Engine 1
 1. Possible Causes
_______________
 - EIU-1 (1KS1)

 - SENSOR-OIL TEMP (4004EN) R - aircraft wiring R
 2. Job Set-up Information
______________________
 A. Referenced Information
 -------------------------------------------------------------------------------
REFERENCE DESIGNATION
 -------------------------------------------------------------------------------
R  AMM  71-51-43-000-001 
R  AMM  71-51-43-400-001 
R
 AMM  73-25-34-000-040 
AMM  73-25-34-400-040 
AMM  73-25-34-710-040 
R  AMM  79-32-15-000-041 
R 
R  AMM  79-32-15-400-041 
R 
R  ASM  79-36/01
 3. Fault Confirmation__________________ 
R  A. Not applicable. 
R

Removal of the Left Side Harness (4216KS)
Installation of the Left Side Harness (4216KS)

Removal of the Engine Interface Unit (EIU)
 (1KS1,1KS2)
Installation of the Engine Interface Unit (EIU)
 (1KS1,1KS2)
Operational Test of the Engine Interface Unit
 (1KS1,1KS2)
Removal of the Oil Temperature Sensor (Engine
Condition Monitoring Sensor)
Installation of the Oil Temperature Sensor (Engine
Condition Monitoring Sensor)

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 4. Fault Isolation
_______________

R A. Procedure.
R NOTE : The fault is triggered if the oil temperature sensor (4004EN)
____ R indicates a temperature greater than 140 deg. C while the ECU R temperature sensor indicates a temperature in between - 55 deg. C R and 135 deg. C. This is indicative of a faulty output of oil R temperature sensor (4004EN).
R (1) Check carrefully electrical connector at the oil temperature sensor
R (4004EN) for looseness, damaged pins or contamination.

R (a) If damage is found:
R - repair or replace as necessary.

R (b) If nothing is found:
　
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