Ford Electric Ranger 2001 Manual page 377

413-01-22
DIAGNOSIS AND TESTING (Continued)
PINPOINT TEST L: ECONOMY MODE INDICATOR DOES NOT OPERATE OR STAYS ON CONTINUOUSLY
• With key OFF, remove and check the economy mode indicator bulb.
• Is the bulb OK?
L5 CHECK CIRCUIT 3044 (LB) FOR OPEN
• With key OFF, disconnect instrument cluster C214 and measure the
resistance of the LB wire between pin 5 on instrument cluster C214 and
BOB pin 17.
• Is the resistance less than 5 ohms?
L6 CHECK CIRCUIT 3044 (LB) FOR SHORT TO POWER
• With key ON, measure the voltage between BOB pin 17 and ground
(BOB pin 80).
• Is the voltage greater than 0 volts?
L7 CHECK POWER TO INSTRUMENT CLUSTER
• With key OFF, disconnect instrument cluster C215.
• With key ON, set the main light switch to the OFF position and measure
the voltage between pin 5 (O/BK wire) on instrument cluster C215 and
ground.
• Is the voltage greater than 10 volts?
L8 CHECK POWER TO MAIN LIGHT SWITCH
• With key OFF, disconnect main light switch C205.
• With key ON, measure the voltage between pin 4 (Y wire) on main light
switch C205 and ground.
• Is the voltage greater than 10 volts?
L9 CHECK INSTRUMENT CLUSTER
• Connect 104-Pin Breakout Box (BOB) to the IAA module and IAA
module C1945.
• With key OFF, disconnect instrument cluster C214 and measure the
resistance between BOB pin 17 and ground (BOB pin 80).
• Is the resistance greater than 10,000 ohms?
L10 CHECK CIRCUIT 3044 (LB) FOR SHORT TO GROUND
• With key OFF, disconnect the IAA module from the BOB; leave BOB
connected to IAA module C1945.
• With key OFF, measure the resistance between BOB pin 17 and ground
(BOB pin 80).
• Is the resistance greater than 10,000 ohms?
PINPOINT TEST M: AUXILIARY BATTERY INDICATOR DOES NOT OPERATE OR STAYS ON
CONTINUOUSLY
M1 IDENTIFY SYMPTOM
NOTE: If the auxiliary battery indicator illuminates continuously, retrieve
diagnostic trouble codes (DTCs) before carrying out the following test
steps. If DTCs exist, refer to the appropriate DTC Index in Section 100-07.
• With key ON, identify the symptom.
• Does the auxiliary battery indicator stay on continuously?
M2 CHECK OPERATION OF AUXILIARY BATTERY INDICATOR
• Enter the interface adapter assembly (IAA) module active command
mode INDICATOR LAMP CONTROL III and set the active command
BATTERY to ON.
(Continued)
Instrument Cluster
TEST STEP
TEST STEP
ACTION TO TAKE
Yes = GO to L5.
No = REPLACE the bulb.
Yes = GO to L6.
No = REPAIR the LB wire.
Yes = REPAIR the LB wire.
No = GO to L7.
Yes = REPLACE the instrument
cluster.
No = GO to L8.
Yes = REPLACE the main light
switch.
No = REPAIR the Y wire.
Yes = REPLACE the instrument
cluster.
No = GO to L10.
Yes = REPLACE the IAA module.
REFER to Section 412-04.
No = REPAIR the LB wire.
ACTION TO TAKE
Yes = GO to M8.
No = GO to M2.
Yes = System OK. CHECK wiring
for intermittent connections.
2001 Ranger EV, 01/2001
413-01-22