Ford 2001 Ranger, Manual

Page: 439 / 1218

414-03A-36 414-03A-36 High Voltage/Traction Battery
DIAGNOSIS AND TESTING (Continued)
PINPOINT TEST A: DTC C1839 LEAKAGE FAULT
TEST STEP ACTION TO TAKE
•
With key OFF, disconnect power steering assembly high-voltage C1895. No = REPLACE the power
•
Connect Power Steering Interlock Tool to power steering assembly steering assembly. REFER
C1895. to Section 211-02.
•
With key ON, monitor BCM PID LKRESB-.
•
Wait approximately 50 seconds.
•
Does the LKRESB- PID indicate less than 50,000 ohms?
A43 CHECK FOR CURRENT LEAKAGE IN A/C COMPRESSOR
•
With key OFF, disconnect A/C inverter motor controller (IMC) Yes = GO to A44.
high-voltage C1902 (to A/C compressor).
•
With key ON, monitor BCM PID LKRESB-. No = REPLACE the A/C
•
Wait approximately 50 seconds. compressor. REFER to
•
Does the LKRESB- PID indicate less than 50,000 ohms?
Section 412-03.
A44 CHECK FOR CURRENT LEAKAGE IN A/C IMC
•
With key OFF, remove the high voltage power distribution box Yes = GO to A45.
(HVPDB) cover and disconnect HVPDB C1917 (to A/C IMC).
•
Reinstall the HVPDB cover. No = REPLACE the A/C IMC.
•
With key ON, monitor BCM PID LKRESB-. REFER to Section 412-03.
•
Wait approximately 50 seconds.
•
Does the LKRESB- PID indicate less than 50,000 ohms?
A45 CHECK FOR CURRENT LEAKAGE IN POSITIVE
TEMPERATURE COEFFICIENT (PTC) HEATER
•
With key OFF, disconnect PTC switching module high-voltage C1912. Yes = GO to A46.
•
With key ON, monitor BCM PID LKRESB-. No = REPLACE the PTC heater.
•
Wait approximately 50 seconds. REFER to Section 412-02.
•
Does the LKRESB- PID indicate less than 50,000 ohms?
A46 CHECK FOR CURRENT LEAKAGE IN PTC SWITCHING
MODULE
•
With key OFF, remove the HVPDB cover and disconnect HVPDB Yes = GO to A47.
C1920 (to PTC switching module).
•
Reinstall the HVPDB cover. No = REPLACE the PTC
•
With key ON, monitor BCM PID LKRESB-. switching module. REFER
•
Wait approximately 50 seconds. to Section 412-02.
•
Does the LKRESB- PID indicate less than 50,000 ohms?
A47 CHECK FOR CURRENT LEAKAGE IN DC/DC CONVERTER
•
With key OFF, remove the HVPDB cover and disconnect HVPDB Yes = GO to A48.
C1914 (to DC/DC converter).
•
Reinstall the HVPDB cover. No = REPLACE the DC/DC
•
With key ON, monitor BCM PID LKRESB-. converter. REFER to Section
•
Wait approximately 50 seconds. 414-02.
•
Does the LKRESB- PID indicate less than 50,000 ohms?
A48 CHECK FOR CURRENT LEAKAGE IN TRACTION BATTERY
CHARGER
•
With key OFF, remove the HVPDB cover and disconnect HVPDB Yes = REPLACE the HVPDB.
C1923 (to traction battery charger).
•
Reinstall the HVPDB cover. No = REPLACE the traction
•
With key ON, monitor BCM PID LKRESB-. battery charger.
•
Wait approximately 50 seconds.
•
Does the LKRESB- PID indicate less than 50,000 ohms?
A49 CHECK FOR CURRENT LEAKAGE IN HIGH-VOLTAGE
POSITIVE BUS (TB+) (INSIDE TRACTION BATTERY SUPPORT
TRAY)
(Continued)
2001 Ranger EV, 01/2001