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Turbocharger Control Module > < Understanding Track Style Wiring Diagrams, Important Stuff !|Page 260

5000CS Turbo L5-2226cc 2.22L SOHC Turbo (MC) (1987)

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check using LED tester US 1115 between terminal 46 and 50

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LED tester must light up

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check using LED tester US 1115 between terminal 46 and 52

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LED tester must light up

NOTE:  If LED tester fails to light up in all tests, check for break in wiring according to wiring diagram. If LED tester lights up in all tests, and
still no voltage at fuel pump, replace fuel pump relay

Turbocharger Control Module > < Understanding Track Style Wiring Diagrams, Important Stuff !|Page 260