Remove the E.C.U. harness protector, then test E.C.U. voltage using appropriate voltmeter. Perform test with connectors connected. Refer to Figs. 5 through 6, for proper voltage.
Fig. 6 E.C.U. Voltage Testing Procedure (Part 1 Of 3):
Fig. 6 E.C.U. Voltage Testing Procedure (Part 2 Of 3):
Fig. 6 E.C.U. Voltage Testing Procedure (Part 3 Of 3):