Ford Electric Ranger 2001 Manual page 396

414-02-4
DIAGNOSIS AND TESTING (Continued)
Symptom Chart (Continued)
Condition
DTC C1775 DC/DC
•
Converter Failure
Auxiliary Battery Warning
•
Indicator Illuminated
(Auxiliary Battery
Temperature Sensor Failure)
Pinpoint Tests
Special Tool(s)
104-Pin Breakout Box (BOB) 418-049 (014-00950) or
equivalent
High Voltage Insulated Safety Gloves 100-F036 or
equivalent
Face Shield 100-F035 or equivalent
PINPOINT TEST A: DTC B1317 BATTERY VOLTAGE - HIGH
A1 CHECK FOR DC/DC CONVERTER FAILURE DIAGNOSTIC
TROUBLE CODE (DTC)
• Carry out on-demand self-test for the interface adapter assembly (IAA)
module and check for DTC C1775 DC/DC Converter Failure.
• Did DTC C1775 DC/DC Converter Failure occur?
A2 CHECK AUXILIARY BATTERY VOLTAGE
• With key ON, monitor the IAA module PID VBATIAA.
• Is the voltage greater than 14 volts?
PINPOINT TEST B: DTC C1318 BATTERY VOLTAGE - LOW
B1 CHECK FOR OTHER INTERFACE ADAPTER ASSEMBLY (IAA)
MODULE DIAGNOSTIC TROUBLE CODES (DTCs)
• Carry out on-demand self-test for the IAA module and check for IAA
module DTCs.
• Did other IAA module DTCs occur?
B2 CHECK AUXILIARY BATTERY VOLTAGE
• With key ON, monitor the IAA module PID VBATIAA.
• Is the voltage less than 13.4 volts?
Auxiliary Battery Charging
Possible Sources
Circuit(s).
•
MEGA fuse.
•
Auxiliary battery cables.
•
Direct current to direct
•
current (DC/DC) converter.
Interface adapter assembly
•
(IAA) module.
High voltage power
•
distribution box (HVPDB).
High-voltage DC/DC fuse.
•
Circuit(s).
•
Direct current to direct
•
current (DC/DC) converter.
Auxiliary battery temperature
•
sensor.
TEST STEP
TEST STEP
Action
GO to Pinpoint Test C.
•
GO to Pinpoint Test D.
•
ACTION TO TAKE
Yes = GO to Pinpoint Test C.
GO to A2.
No =
Yes = GO to Pinpoint Test D.
No = System OK. CHECK wiring
for intermittent connections.
ACTION TO TAKE
Yes = REFER to IAA Module
Diagnostic Trouble Code
(DTC) Index in
100-07.
GO to B2.
No =
Yes = GO to Pinpoint Test D.
No = System OK. CHECK wiring
for intermittent connections.
2001 Ranger EV, 01/2001
414-02-4
Section