Ford 2001 Ranger, Manual

Page: 375 / 1218

413-01-20 413-01-20 Instrument Cluster
DIAGNOSIS AND TESTING (Continued)
PINPOINT TEST J: POWER RESET INDICATOR DOES NOT OPERATE OR STAYS ON CONTINUOUSLY
TEST STEP ACTION TO TAKE
•
With key OFF, connect a jumper wire between BOB pin 9 and ground No = GO to J4.
(BOB pin 80).
•
Does the power reset indicator illuminate?
J4 CHECK POWER RESET INDICATOR BULB
•
With key OFF, remove and check the power reset indicator bulb. Yes = GO to J5.
•
Is the bulb OK?
No = REPLACE the bulb.
J5 CHECK CIRCUIT 3402 (W/BK) FOR OPEN
•
With key OFF, disconnect instrument cluster C215 and measure the Yes = GO to J6.
resistance of the W/BK wire between pin 2 on instrument cluster C215
and BOB pin 9.
•
Is the resistance less than 5 ohms?
No = REPAIR the W/BK wire.
J6 CHECK CIRCUIT 3402 (W/BK) FOR SHORT TO POWER
•
With key ON, measure the voltage between BOB pin 9 and ground Yes = REPAIR the W/BK wire.
(BOB pin 80).
•
Is the voltage greater than 0 volts?
No = GO to J7.
J7 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.
J8 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 C215 and measure the No = GO to J9.
resistance between BOB pin 9 and ground (BOB pin 80).
•
Is the resistance greater than 10,000 ohms?
J9 CHECK CIRCUIT 3402 (W/BK) 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 9 and ground No = REPAIR the W/BK wire.
(BOB pin 80).
•
Is the resistance greater than 10,000 ohms?
PINPOINT TEST K: CHARGE INDICATOR DOES NOT OPERATE OR STAYS ON CONTINUOUSLY
TEST STEP ACTION TO TAKE
K1 IDENTIFY SYMPTOM
NOTE: Verify the vehicle is not connected to a power control station
Yes = GO to K8.
(PCS) before carrying out the following test steps.
•
With key ON, identify the symptom.
•
Does the charge indicator stay on continuously?
No = GO to K2.
K2 CHECK OPERATION OF CHARGE 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.
CHARGE to ON.
•
Does the charge indicator illuminate?
No = GO to K3.
K3 CHECK CHARGE INDICATOR CONTROL CIRCUIT
•
Connect 104-Pin Breakout Box (BOB) to interface adapter assembly Yes = REPLACE the IAA module.
(IAA) module C1945; leave IAA module disconnected. REFER to Section 412-04.
(Continued)
2001 Ranger EV, 01/2001