Ford Electric Ranger 2001 Manual page 386

413-01-31
DIAGNOSIS AND TESTING (Continued)
PINPOINT TEST W: INSTRUMENT CLUSTER ILLUMINATION LAMPS DO NOT OPERATE
W1 CHECK CIRCUIT 19 (LB/R) FOR OPEN(S)
• With key OFF, disconnect instrument illumination dimming module
C204 and instrument cluster C214 and C215.
• With key OFF, measure the resistance of the LB/R wire between pin 4
on instrument illumination dimming module C204 and pin 6 on
instrument cluster C214.
• With key OFF, measure the resistance of the LB/R wire between pin 4
on instrument illumination dimming module C204 and pin 3 on
instrument cluster C215.
• Are the resistances less than 5 ohms?
W2 CHECK GROUND TO INSTRUMENT CLUSTER
• With key OFF, measure the resistance between pin 16 (BK wire) on
instrument cluster C214 and ground.
• Is the resistance less than 5 ohms?
W3 CHECK INSTRUMENT CLUSTER ILLUMINATION BULB(S)
• With key OFF, remove and check the instrument cluster illumination
bulb(s) in question.
• Are the bulbs OK?
PINPOINT TEST X: ANTI-LOCK BRAKE SYSTEM (ABS) WARNING INDICATOR DOES NOT OPERATE
X1 VERIFY ANTI-LOCK BRAKE SYSTEM (ABS) WARNING
INDICATOR OPERATION
• With key ON, check the anti-lock brake system (ABS) warning indicator. Yes =
• Does the ABS warning indicator prove out?
X2 CHECK ABS WARNING INDICATOR CONTROL CIRCUIT
• With key OFF, disconnect anti-lock brake control module C154.
• With key ON, connect a jumper wire between pin 16 (DG wire) on
anti-lock brake control module C154 and ground.
• Does the ABS warning indicator illuminate?
X3 CHECK ABS WARNING INDICATOR BULB
• With key OFF, remove and check the ABS warning indicator bulb.
• Is the bulb OK?
X4 CHECK CIRCUIT 603 (DG) FOR OPEN
• With key OFF, disconnect instrument cluster C216 and measure the
resistance of the DG wire between pin 6 on instrument cluster C216 and
pin 16 on anti-lock brake control module C154.
• Is the resistance less than 5 ohms?
X5 CHECK CIRCUIT 603 (DG) FOR SHORT TO POWER
• With key ON, measure the voltage between pin 16 (DG wire) and
ground.
• Is the voltage greater than 0 volts?
X6 CHECK POWER TO INSTRUMENT CLUSTER
• With key ON, measure the voltage between pin 4 (Y wire) on instrument
cluster C216 and ground.
• Is the voltage greater than 10 volts?
Instrument Cluster
TEST STEP
TEST STEP
ACTION TO TAKE
GO to W2.
Yes =
No = REPAIR the LB/R wire(s)
in question.
Yes = GO to W3.
No = REPAIR the BK wire.
Yes = REPLACE the instrument
cluster.
No = REPLACE the bulb(s) in
question.
ACTION TO TAKE
System OK. CHECK wiring
for intermittent connections.
GO to X2.
No =
Yes = REPLACE the anti-lock
brake control module.
REFER to Section 206-09.
GO to X3.
No =
GO to X4.
Yes =
No = REPLACE the bulb.
GO to X5.
Yes =
No = REPAIR the DG wire.
Yes = REPAIR the DG wire.
GO to X6.
No =
Yes = REPLACE the instrument
cluster.
No = REPAIR the Y wire.
2001 Ranger EV, 01/2001
413-01-31