TM   5-5420-226-20-1 DETAiLED TROUBLESHOOTING PROCEDURE INDICATOR -  GAGE (Continued) Symptom-34 ~ Check    gage    instrument panel    harness (CKT    27)   for electrical power at  TRANSMISSION PRESS indicator gage. Second Technician (Operator’s Station) l   Set    MASTER BATTERY switch OFF. First Technician (Commander’s Station) l   Install    front   accessory harness connector at bulkhead disconnect (page 10-270). Second Technician (Operator’s Station) l   Displace gage    instrument panel (page 10-111). l   Disconnect gage    instrument panel harness connector (CKT 27)   from TRANSMISSION PRESS indicator gage. l   Set   multimeter to   measure 18  to   30   volts    dc   or   use STE/ICE Test No. 89   (page 4-81). l   Connect red    probe of   meter to   gage   instrument panel harness connector (CKT 27)   and    black probe to   ground. l   Set   MASTER BATTERY switch ON. l   Check   if   meter   indicates 18  to   30   volts    dc. / Does    meter    indicate 18  to   30  volts   dc? \ n o ^-,n + o TO   VEHICLE GROUND II CKT    27 GAGE INSTRUMENT PANEL (REAR VIEW) ( )_{l   Repair    gage    instrumentpanel} harness (page 10-298). l   Install    basket-indicator panel harness connector (CKT   321) at   basket disconnect. l   Install    transmission shroud (page    9-6). lo_NO r ----- 1 CKT # GAGE # i INSTRUMENT b-i < TRANSMISSION I H    r-. 27 PRESS : PANEL -. INDICATOR I CONNECTOR ~ / GAGE L ----.- a CONTACT TA107132 .— 4-443