Ford Electric Ranger 2001 Manual page 409

414-03A-6
DIAGNOSIS AND TESTING (Continued)
PINPOINT TEST A: DTC C1862 CONTACTOR CIRCUIT FAILURE
A1 CHECK FOR INTERFACE ADAPTER ASSEMBLY (IAA)
MODULE, TRACTION INVERTER MODULE (TIM), AND BATTERY
CONTROL MODULE (BCM) DIAGNOSTIC TROUBLE CODES
(DTCs)
NOTE: Do not go to test step A2 unless there is a multiple auxiliary load
failure and DTC C1862 occurs after the IAA module on-demand self-test is
performed.
• Retrieve continuous DTCs from the TIM and perform on-demand
self-test for the IAA module and BCM.
• Do IAA module DTCs C1862 Contactor Circuit Failure and U2015
Signal Link Fault (Non SCP), TIM DTC B1676 Battery Pack Voltage
Out of Range, and BCM DTC C1837 Battery Heater Circuit Failure
all occur?
A2 CHECK HIGH-VOLTAGE AUXILIARY BUS STATUS
• With key ON, monitor IAA module PID AUXHVB.
• Does the AUXHVB PID indicate AVAILA?
A3 CHECK AUXILIARY CONTACTOR RELAY STATUS
• With key ON, monitor IAA module PID AUX HVC.
• Does the AUX HVC PID indicate CLOSED?
A4 CHECK CHARGER CORD STATUS
NOTE: Verify the power control station (PCS) charger cord is not plugged
into the charger inlet before performing this test step.
• With key OFF, monitor BCM PID CHGCORD.
• Does the CHGCORD PID indicate OUT?
A5 VERIFY AVAILABILITY OF AUXILIARY HIGH-VOLTAGE BUS
• With key ON, monitor IAA module PID AUXHVB.
• Does the AUXHVB PID indicate AVAILA?
A6 CHECK AUXILIARY CONTACTOR RELAY FAULT STATUS
(Continued)
High Voltage/Traction Battery
TEST STEP ACTION TO TAKE
Yes = REFER to Pinpoint Test A
in Main/Precharge Contactor
Relay Control in this
section.
GO to A2.
No =
If other BCM DTCs occur,
REFER to the BCM DTC
Index in Section 100-07.
Yes = GO to A3.
No = If AUXHVB PID indicates
UNAVAI, RETRIEVE
DTCs from the battery
control module (BCM).
REFER to Section 100-07.
If AUXHVB PID indicates
EPO or INERSW, REFER
to Emergency Power Off
(EPO)/Interlock System in
this section.
Yes = System OK. CHECK wiring
for intermittent connections.
No = If AUX HVC PID
indicates OPEN, GO to A4.
If AUX HVC PID
indicates OFAULT, GO to
A6.
GO to A5.
Yes =
No = RETRIEVE DTCs from the
BCM. REFER to Section
100-07.
Yes = REPLACE the IAA module.
REFER to Section 412-04.
No = RETRIEVE DTCs from the
BCM. REFER to Section
100-07.
2001 Ranger EV, 01/2001
414-03A-6