TM 9-2320-302-20 0010 00-16 Table 1. Electrical System Troubleshooting Procedures - Continued. MALFUNCTION TEST OR INSPECTION CORRECTIVE ACTION Instrument Wiring Circuits - Continued 3.  Transmission Oil Temperature Gage Does Not Operate - Continued. 2.    Disconnect  ground  lead  from transmission   oil   temperature gage.    Check    for    continuity between lead and ground. If continuity is present, go to step 3.  If  continuity  is  not  indicated, repair ground lead (WP 0119 00). 3.    Disconnect lead 30 from transmission   oil   temperature gage.   Check   for   +8   to   +12 VDC at transmission oil temperature gage. If +8 to +12 VDC is present, go to step  4.  If  voltage  is  not  present, replace transmission oil temperature gage (WP 0062 00). 4.    Disconnect lead 30 from transmission   oil   temperature gage  sensor.  Check  for  +8  to +12 VDC at lead 30. If   +8   to   +12   VDC   is   present, replace transmission oil temperature     gage     sensor     (WP 0096 00). If voltage is not present, repair lead 30 (WP 0119 00). 4.  Fuel Level Gage Does Not Operate. 1.    Disconnect lead 81C from fuel level    gage.    Check    for    +12 VDC at lead 81C. If +12 VDC is present, go to step 2. If voltage is not present, repair lead 81C (WP 0119 00). 2.    Disconnect  ground  lead  from fuel    level    gage.    Check    for continuity between ground lead and ground. If continuity is present, go to step 3.  If  continuity  is  not  indicated, repair ground lead (WP 0119 00). 3.    Disconnect  lead  47  from  fuel level   gage.   Check   for   +8   to +12 VDC at fuel level gage. If +8 to +12 VDC is present, go to step  4.  If  voltage  is  not  present, replace fuel level gage (WP 0062 00). 4.    Disconnect  lead  47  from  fuel level  sensor.  Check  for  +8  to +12 VDC at lead 47. If   +8   to   +12   VDC   is   present, replace fuel level gage sensor (WP 0094 00). If voltage is not present, repair lead 47 (WP 0119 00). 5.  Voltmeter   Does   Not   Operate,   But   Warning Light Operates Normally. 1.    Disconnect    lead    19A    from voltmeter. Check for +12 VDC at lead 19A. If +12 VDC is present, go to step 2. If voltage is not present, repair lead 19A (WP 0119 00). 2.    Disconnect  ground  lead  from voltmeter. Check for continuity between ground lead and ground. If continuity is indicated, replace voltmeter  (WP  0063  00).  If  con- tinuity    is    not    indicated,    repair ground lead (WP 0119 00). 6.  Axle Lock Indicator Light Does Not Operate. 1.    Disconnect lead 81C from axle lock   pressure   switch.   Check for +12 VDC at lead 81C. If +12 VDC is present, go to step 2. If voltage is not present, repair lead 81C (WP 0119 00). 2.    Disconnect  leads  87  and  81C from axle lock pressure switch.  Check  for  continuity between contacts of switch. If  continuity  is  indicated,  go  to step 3. If continuity is not indicated, replace axle lock pressure switch (WP 0063 00).