Ford Electric Ranger 2001 Manual page 384

413-01-29
DIAGNOSIS AND TESTING (Continued)
PINPOINT TEST S: RED BRAKE WARNING INDICATOR DOES NOT OPERATE OR STAYS ON
CONTINUOUSLY
• With key ON, depress the park brake pedal.
• Does the red brake warning indicator illuminate?
S11 CHECK PARK BRAKE SWITCH
• With key OFF, disconnect park brake switch C202.
• With key ON, connect a jumper wire between the LG/R wire on park
brake switch C202 and ground.
• Does the red brake warning indicator illuminate?
S12 CHECK GROUND TO BRAKE FLUID LEVEL SWITCH
• With key OFF, measure the resistance between the BK wire on brake
fluid level switch C202 and ground.
• Is the resistance less than 5 ohms?
S13 CHECK INSTRUMENT CLUSTER
• Connect 104-Pin Breakout Box (BOB) to the IAA module and IAA
module C1945.
• With key OFF, disconnect instrument cluster C216 and measure the
resistance between BOB pin 39 and ground (BOB pin 80).
• Is the resistance greater than 10,000 ohms?
S14 CHECK CIRCUIT 512 (T/LG) FOR SHORT TO GROUND
• With key OFF, disconnect the IAA module from the BOB; leave BOB
connected to IAA module C1945.
• With key OFF, disconnect brake fluid level switch C137 and measure the No =
resistance between BOB pin 39 and ground (BOB pin 80).
• Is the resistance greater than 10,000 ohms?
S15 CHECK BRAKE FLUID LEVEL SWITCH
• With key OFF, measure the resistance between the P/W wire terminal
and BK wire terminal on the brake fluid level switch C137.
• Is the resistance greater than 10,000 ohms?
S16 CHECK PARK BRAKE SWITCH
NOTE: Verify the park brake pedal is not depressed before carrying out
this test step.
• With key OFF, disconnect park brake switch C202 and measure the
resistance between the LG/R wire terminal on park brake switch C202
and ground.
• Is the resistance greater than 10,000 ohms?
S17 CHECK CIRCUIT 162 (LG/R) FOR SHORT TO GROUND
• With key OFF, disconnect park brake switch C202 and daytime running
lamps (DRL) module C150 (if equipped), and measure the resistance
between the LG/R wire on brake fluid level switch C137 and ground.
• Is the resistance greater than 10,000 ohms?
PINPOINT TEST T: HI BEAM INDICATOR DOES NOT OPERATE
T1 CHECK POWER TO INSTRUMENT CLUSTER
• With key OFF, disconnect instrument cluster C216.
(Continued)
Instrument Cluster
TEST STEP
TEST STEP
ACTION TO TAKE
Yes = GO to S12.
GO to S11.
No =
Yes = REPLACE the park brake
switch.
No = REPAIR the LG/R wire.
Yes = System OK. CHECK wiring
for intermittent connections.
No = REPAIR the BK wire.
Yes = REPLACE the instrument
cluster.
GO to S14.
No =
GO to S15.
Yes =
REPAIR the T/LG wire.
Yes = GO to S16.
No = REPLACE the brake fluid
level switch.
GO to S17.
Yes =
No = REPLACE the park brake
switch.
Yes = REPLACE the IAA module.
REFER to Section 412-04.
No = REPAIR the LG/R wire.
ACTION TO TAKE
Yes = GO to T2.
2001 Ranger EV, 01/2001
413-01-29