Ford Electric Ranger 2001 Manual page 610

414-03B-7
DIAGNOSIS AND TESTING (Continued)
PINPOINT TEST A: DTC C1862 CONTACTOR CIRCUIT FAILURE
A1 CHECK FOR INTERFACE ADAPTER ASSEMBLY (IAA)
MODULE AND TRACTION INVERTER MODULE (TIM)
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
carried out.
• Retrieve continuous DTCs from the TIM and carry out the on-demand
self-test for the IAA module.
• Do IAA module DTCs C1862 Contactor Circuit Failure and U2015
Signal Link Fault (Non SCP), and TIM DTC B1676 Battery Pack
Voltage Out of Range 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 carrying out 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
• Enter IAA module active command mode AUXILIARY SYSTEM
CONTROL, monitor IAA module PID AUX HVC, and set the active
command AUX CONT to CLOSE.
• After the CLOSE signal is complete, set the active command AUX
CONT to OPEN.
• Does the AUX HVC PID indicate CLOSED?
(Continued)
High Voltage/Traction Battery — Nickel Metal Hydride
TEST STEP ACTION TO TAKE
Yes = REFER to Pinpoint Test A
in Main/Precharge Contactor
Relay Control in this
section.
GO to A2.
No =
GO to A3.
Yes =
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.
Yes = System OK. CHECK wiring
for intermittent connections.
No = If AUX HVC PID
indicates CFAULT, GO to
A7.
2001 Ranger EV, 01/2001
414-03B-7