Ford Electric Ranger 2001 Manual page 469

414-03A-66
DIAGNOSIS AND TESTING (Continued)
PINPOINT TEST A: DTC B2513 BLOWER (FAN) CIRCUIT FAILURE
NOTE: If an emergency power off (EPO) condition occurs, the fan power
will be disabled. If interface adapter assembly (IAA) module DTC B2517
Emergency Power Off System Faulted occurred, perform the appropriate
diagnostic procedures before performing this test step. Refer to the IAA
Module DTC Index in Section 100-07.
• With key ON, monitor BCM PID FAN PWR.
• Does the FAN PWR PID indicate ENABLE?
A3 CHECK FAN FEEDBACK STATUS
• Enter BCM active command mode FAN SPEED CONTROL, monitor
BCM PID FAN FB, and set active command FAN SPEED to 50%.
• Does the FAN FB PID indicate ENABLE?
A4 CHECK FUSE AND POWER TO TRACTION BATTERY
COOLING FAN RELAY AT TRACTION BATTERY SUPPORT TRAY
• Check 30A fuse 17 in the electric vehicle power distribution box
(EVPDB).
• With key OFF, disconnect traction battery support tray in-line C1939 and No =
connect 104-Pin Breakout Box (BOB) to in-line C1939M using Traction
Battery Low-Voltage Service Cord; do not connect Traction Battery
Low-Voltage Service Cord to in-line C1939F.
• With key OFF, measure the voltage between BOB pin 64 and ground
(BOB pin 65). (V > 10 volts)
• Is everything OK?
A5 CHECK POWER TO TRACTION BATTERY COOLING FAN
• Disconnect BOB from in-line C1939M, remove the traction battery, and
connect Traction Battery High-Voltage Lockout and Diagnostic Tool to
the traction battery high-voltage two-pin C3994M.
WARNING: The traction battery contains high-voltage
components and wiring. High-voltage insulated safety gloves and face
shield must be worn when performing the following steps. Failure to
follow this warning may result in severe personal injury or death.
• Connect Traction Battery High-Voltage Service Cord to traction battery
support tray in-line C1935F and in-line C1935M.
• Connect Traction Battery Low-Voltage Service Cord to traction battery
support tray in-line C1939F and in-line C1939M.
• Connect BOB to BCM C1986, C1987 using the BCM/TIM BOB Adapter
Cable and Overlay; leave the BCM disconnected.
• With key OFF, disconnect traction battery cooling fan C1984.
• Connect a jumper wire between BOB pin B23 and ground (BOB pin
A33).
• Measure the voltage between pin E (W/R wire) on traction battery
cooling fan C1984 and ground.
• Is the voltage greater than 10 volts?
A6 CHECK POWER TO TRACTION BATTERY COOLING FAN
RELAY
• Disconnect traction battery cooling fan relay C1983 and measure the
voltage between pin 86 (Y/BK wire), pin 87 (Y/BK wire) on traction
battery cooling fan relay C1983 and ground.
• Are the voltages greater than 10 volts?
A7 CHECK TRACTION BATTERY COOLING FAN RELAY
• Connect 12-volts to pin 86 and ground to pin 85 on the traction battery
cooling fan relay.
(Continued)
High Voltage/Traction Battery
TEST STEP
414-03A-66
ACTION TO TAKE
Yes = GO to A3.
No = REPLACE the BCM.
Yes = System OK. CHECK wiring
for intermittent connections.
If fan operates, GO to A12.
No =
If fan does not operate, GO
to A4.
Yes = GO to A5.
REPAIR as necessary.
Yes = REMOVE the jumper wire.
GO to A9.
No = REMOVE the jumper wire.
GO to A6.
GO to A7.
Yes =
No = REPAIR the Y/BK wire(s).
Yes = GO to A8.
2001 Ranger EV, 01/2001