R . pin 34 and the ground (more than 10 megohms)
R . pin 18 and the ground (more than 10 megohms)
R . pin 16 and the ground (more than 10 megohms)
R (a) If the resistance values are out of the specified limits: R - Disconnect the HJ12 harness from the cable CJ11R at the 6 R o'clock junction box R - Do a resistance check of the cable CJ12R between (Ref. ASM 73-R 25/18).
R . pins 17 and 6 (72 to 89 ohms)
R . pins 19 and 18 (42 to 52 ohms)
R . pins 20 and 8 (42 to 52 ohms)
R . pins 17 and 7 (more than 10 megohms)
R . pins 19 and 7 (more than 10 megohms)
R . pins 20 and 7 (more than 10 megohms)
R . pin 17 and the ground (more than 10 megohms)
R . pin 19 and the ground (more than 10 megohms)
R . pin 20 and the ground (more than 10 megohms)
R 1_ If the resistance value are in the specified limits:
R - replace the HJ11 harness (Ref. AMM TASK 73-21-50-000-044)
R (Ref. AMM TASK 73-21-50-400-044).
R 2_ If the resistance value are out of the specified limits:
R - Disconnect the harness CJ12R from the BSV valve.
R - Do a resistance check at the BSV valve between (Ref. ASM 73-R 25/18).
R . pins 4 and 2 (72 to 89 ohms)
R . pins 6 and 7 (42 to 52 ohms)
R . pins 8 and 9 (42 to 52 ohms)
R . pins 2 and 1 (more than 10 megohms)
R . pins 6 and 1 (more than 10 megohms)
R . pins 8 and 1 (more than 10 megohms)
R . pin 2 and the ground (more than 10 megohms)
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R . pin 6 and the ground (more than 10 megohms)
R . pin 8 and the ground (more than 10 megohms)
R a_ If the resistance values are in the specified limits:
R - replace the CJ12R harness (Ref. AMM TASK 73-21-50-000-
R 026) (Ref. AMM TASK 73-21-50-400-026).
R b_ If the resistance values are out of the specified limits:
R - replace the BSV (Ref. AMM TASK 73-11-70-000-002) (Ref.
R AMM TASK 73-11-70-400-002).
R (b) If the resistance values are in the specified limits:
R - replace the ECU (4000KS) (Ref. AMM TASK 73-21-60-000-001) (Ref.
R AMM TASK 73-21-60-400-001)
R B. Do the test given in Para. 3.A.
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R TASK 73-10-00-810-852
R Feedback Disagree on Channel B of the BSV on engine 2
R 1. Possible Causes
_______________
R - J14 Identification connector R - HJ11 harness R - CJ12R harness R - BSV R - ECU (4000KS)
R 2. Job Set-up Information
______________________
R A. Referenced Information
R -------------------------------------------------------------------------------R REFERENCE DESIGNATION R -------------------------------------------------------------------------------
R AMM 73-11-70-000-002
R AMM 73-11-70-400-002
R AMM 73-21-50-000-026
R AMM 73-21-50-000-044
R AMM 73-21-50-400-026
R AMM 73-21-50-400-044
R AMM 73-21-60-000-001
R AMM 73-21-60-400-001
R
R AMM 73-21-90-000-002
R AMM 73-21-90-400-002
R AMM 73-21-90-860-001
R
R AMM 73-29-00-710-040
R
R ASM 73-25/18
R 3. Fault Confirmation__________________
Removal of the Burner Staging Valve (BSV) Installation of the Burner Staging Valve (BSV) Removal of the CJ11R Harness Removal of the HJ11 Harness Installation of the CJ11R Harness Installation of the HJ11 Harness Removal of the Electronic Control Unit (ECU)(4000KS) Installation of the Electronic Control Unit (ECU)(4000KS) Removal of the Engine Identification Connector Installation of the Engine Identification Connector Programming of the Identification Connector (Push-Pull Design) Operational Test of the FADEC on the Ground (with Engine Motoring)
R A. Do the operational test of the FADEC on the ground (with engine motoring) R (Ref. AMM TASK 73-29-00-710-040).
R 4. Fault Isolation
_______________
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