Ford 2001 Ranger, Manual

Page: 379 / 1218

413-01-24 413-01-24 Instrument Cluster
DIAGNOSIS AND TESTING (Continued)
PINPOINT TEST N: POWER LIMIT WARNING INDICATOR DOES NOT OPERATE OR STAYS ON
CONTINUOUSLY
TEST STEP ACTION TO TAKE
N1 IDENTIFY SYMPTOM
NOTE: Verify no diagnostic trouble codes (DTCs) exist and the traction
Yes = GO to N8.
battery is charged to full state of charge (SOC) before carrying out the
following test steps.
•
With key ON, identify the symptom.
•
Does the power limit warning indicator stay on continuously?
No = GO to N2.
N2 CHECK OPERATION OF POWER LIMIT WARNING
INDICATOR
•
Enter the interface adapter assembly (IAA) module active command Yes = System OK. CHECK wiring
mode INDICATOR LAMP CONTROL III and set the active command for intermittent connections.
PWR LIMIT to ON.
•
Does the power limit warning indicator illuminate?
No = GO to N3.
N3 CHECK POWER LIMIT WARNING INDICATOR CONTROL
CIRCUIT
•
Connect 104-Pin Breakout Box (BOB) to IAA module C1945; leave IAA Yes = REPLACE the IAA module.
module disconnected. REFER to Section 412-04.
•
With key OFF, connect a jumper wire between BOB pin 8 and ground No = GO to N4.
(BOB pin 80).
•
Does the power limit warning indicator illuminate?
N4 CHECK POWER LIMIT WARNING INDICATOR BULB
•
With key OFF, remove and check the power limit warning indicator Yes = GO to N5.
bulb.
•
Is the bulb OK?
No = REPLACE the bulb.
N5 CHECK CIRCUIT 3400 (BR/LB) FOR OPEN
•
With key OFF, disconnect instrument cluster C214 and measure the Yes = GO to N6.
resistance of the BR/LB wire between pin 3 on instrument cluster C214
and BOB pin 8.
•
Is the resistance less than 5 ohms?
No = REPAIR the BR/LB wire.
N6 CHECK CIRCUIT 3400 (BR/LB) FOR SHORT TO POWER
•
With key ON, measure the voltage between BOB pin 8 and ground Yes = REPAIR the BR/LB wire.
(BOB pin 80).
•
Is the voltage greater than 0 volts?
No = GO to N7.
N7 CHECK POWER TO INSTRUMENT CLUSTER
•
With key OFF, measure the voltage between pin 1 (LB wire), pin 12 (LB Yes = REPLACE the instrument
wire) on instrument cluster C215 and ground. cluster.
•
Is the voltage greater than 10 volts?
No = REPAIR the LB wire(s) in
question.
N8 CHECK INSTRUMENT CLUSTER
•
Connect 104-Pin Breakout Box (BOB) to the IAA module and IAA Yes = REPLACE the instrument
module C1945. cluster.
•
With key OFF, disconnect instrument cluster C214 and measure the No = GO to N9.
resistance between BOB pin 8 and ground (BOB pin 80).
•
Is the resistance greater than 10,000 ohms?
N9 CHECK CIRCUIT 3400 (BR/LB) FOR SHORT TO GROUND
•
With key OFF, disconnect the IAA module from the BOB; leave BOB Yes = REPLACE the IAA module.
connected to IAA module C1945. REFER to Section 412-04.
•
With key OFF, measure the resistance between BOB pin 8 and ground No = REPAIR the BR/LB wire.
(BOB pin 80).
•
Is the resistance greater than 10,000 ohms?
2001 Ranger EV, 01/2001