TEST OR INSPECTION
Wire numbers with H prefix indicate that circuit is an extension of a HEMTT circuit.
Turn battery disconnect switch to OFF position (WP 0007). Remove personnel cab
instrument panel A (WP 0311). Remove relay 15 (WP 0402). Turn battery disconnect
switch to ON position (WP 0007). Check for 22 to 28 VDC between cab power
distribution wire harness wire H052 (white) at relay 15, terminal 1 and a known good
If 22 to 28 VDC are not present, go to Step 19.