Ford 2001 Ranger, Руководство пользователя

Страница: 637 / 1218

414-03B-34 414-03B-34 High Voltage/Traction Battery — Nickel Metal Hydride
DIAGNOSIS AND TESTING (Continued)
PINPOINT TEST A: DTC C1839 LEAKAGE FAULT
TEST STEP ACTION TO TAKE
A39 CHECK FOR CURRENT LEAKAGE IN POSITIVE
TEMPERATURE COEFFICIENT (PTC) HEATER
•
With key OFF, disconnect PTC switching module high-voltage C1912. Yes = GO to A40.
•
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?
A40 CHECK FOR CURRENT LEAKAGE IN PTC SWITCHING
MODULE
•
With key OFF, remove the HVPDB cover and disconnect HVPDB Yes = GO to A41.
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?
A41 CHECK FOR CURRENT LEAKAGE IN DC/DC CONVERTER
•
With key OFF, remove the HVPDB cover and disconnect HVPDB Yes = GO to A42.
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?
A42 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?
A43 CHECK FOR CURRENT LEAKAGE IN HIGH-VOLTAGE
POSITIVE BUS (TB+) (INSIDE TRACTION BATTERY SUPPORT
TRAY)
NOTE: The ignition key must be in the OFF position when carrying out
Yes = GO to A49 (leakage is in
this test step and you must wait approximately three minutes for the
contactor box or battery
results.
module voltage sense lines).
•
With key OFF, monitor BCM PID .
•
Wait approximately three minutes.
•
Does the PID indicate less than 50,000 ohms?
No = GO to A44 (leakage is in
auxiliary load + bus, TIM,
or traction motor).
A44 CHECK FOR CURRENT LEAKAGE IN THE AUXILIARY
POSITIVE (+) BUS (INSIDE TRACTION BATTERY SUPPORT TRAY)
BETWEEN THE CONTACTOR BOX RELAYS AND TB+
•
With key OFF, disconnect high-voltage auxiliary load in-line C1935 on Yes = GO to A45 (leakage is in
the traction battery support tray. TIM or traction motor)
(Continued)
2001 Ranger EV, 01/2001