TM 9-2320-387-24-l
FUEL SYSTEM
DIAGNOSTIC FLOWCHART
KNOWN INFO
T OPTIONS
1. STEXE-R
TEST 91 (Page 2-508)
2. MULTIMETER
29C OK
DISCONNECT WIRE 11A
FROM THE ROTARY SWITCH.
DO YOU HAVE CONTINUITY
BETWEEN WIRE 11A AT THE
SWITCH AND SOCKET G IN THE
BODY CONNECTOR HARNESS?
POSSIBLE
PROBLEMS
REASON FOR QUESTION
PCB
ROTARY SWITCH
WIRING
If this wire is ok, the problem
may be in the rotary switch.
KNOWN INFO
iT OPTlONS
1. STUICE-R
TEST 91 (Page 2-808)
2. MULTlMl3ER
WIRING OK
WITH THE ROTARY SWITCH IN
THE RUN POSITION, DO YOU
HAVE CONTINUITY BETWEEN
THE TERMINALS FOR WIRES
11A AND 29A ON THE ROTARY
SWITCH?
POSSIBLE
PROBLEMS
REASON FOR QUESTION
If the rotary switch is ok, the
problem is the PCB.
PCB
ROTARY SWITCH
ST OPTIONS
1. STEIICE-R TEST 91 (Page 2-508)
2. MULTIMETER
I
RECONNECT THE BODY
CONNECTOR HARNESS THEN
THE ENGINE CONNECTOR
HARNESS.
DO YOU HAVE CONTINUITY
BETWEEN WIRE 29A AT THE
ROTARY SWITCH AND WIRE 54A
AT THE FUEL SOLENOID?
KNOWN INFO
ROTARY SWITCH OK
REASON FOR QUESTlON
If there is no continuity, there is an
open inside the PCB.
POSSIBLE
PROBLEMS
PCB
REPLACE
PCB.
2-138
