Ford Electric Ranger 2001 Manual page 434

414-03A-31
DIAGNOSIS AND TESTING (Continued)
PINPOINT TEST A: DTC C1839 LEAKAGE FAULT
• With key OFF, disconnect high-voltage auxiliary load in-line C1935 on
the traction battery support tray.
• Connect Auxiliary Interlock Tool to the high-voltage auxiliary load
in-line C1935 on the traction battery support tray and in-line interlock
C1948 (located behind the high voltage power distribution box ).
• With key ON, monitor BCM PID LEAKRES.
• Wait approximately 50 seconds.
• Does the LEAKRES PID indicate less than 50,000 ohms?
A17 CHECK FOR CURRENT LEAKAGE IN POWER STEERING
ASSEMBLY
• With key OFF, remove Auxiliary Interlock Tool, and reconnect in-line
interlock C1948 and high-voltage auxiliary load in-line C1935 to the
traction battery support tray.
• With key OFF, disconnect power steering assembly high-voltage C1895.
• Connect Power Steering Interlock Tool to power steering assembly
C1895.
• With key ON, monitor BCM PID LEAKRES.
• Wait approximately 50 seconds.
• Does the LEAKRES PID indicate less than 50,000 ohms?
A18 CHECK FOR CURRENT LEAKAGE IN A/C COMPRESSOR
• With key OFF, disconnect A/C inverter motor controller (IMC)
high-voltage C1902 (to A/C compressor).
• With key ON, monitor BCM PID LEAKRES.
• Wait approximately 50 seconds.
• Does the LEAKRES PID indicate less than 50,000 ohms?
A19 CHECK FOR CURRENT LEAKAGE IN A/C IMC
• With key OFF, remove the high voltage power distribution box
(HVPDB) cover and disconnect HVPDB C1917 (to A/C IMC).
• Reinstall the HVPDB cover.
• With key ON, monitor BCM PID LEAKRES.
• Wait approximately 50 seconds.
• Does the LEAKRES PID indicate less than 50,000 ohms?
A20 CHECK FOR CURRENT LEAKAGE IN POSITIVE
TEMPERATURE COEFFICIENT (PTC) HEATER
• With key OFF, disconnect PTC switching module high-voltage C1912.
• With key ON, monitor BCM PID LEAKRES.
• Wait approximately 50 seconds.
• Does the LEAKRES PID indicate less than 50,000 ohms?
A21 CHECK FOR CURRENT LEAKAGE IN PTC SWITCHING
MODULE
• With key OFF, remove the HVPDB cover and disconnect HVPDB
C1920 (to PTC switching module).
• Reinstall the HVPDB cover.
• With key ON, monitor BCM PID LEAKRES.
• Wait approximately 50 seconds.
• Does the LEAKRES PID indicate less than 50,000 ohms?
A22 CHECK FOR CURRENT LEAKAGE IN DC/DC CONVERTER
• With key OFF, remove the HVPDB cover and disconnect HVPDB
C1914 (to DC/DC converter).
(Continued)
High Voltage/Traction Battery
TEST STEP
414-03A-31
ACTION TO TAKE
Yes = GO to A24 (leakage is in
traction battery support tray,
TIM, or traction motor).
GO to A17 (leakage is in
No =
the auxiliary negative bus).
GO to A18.
Yes =
No = REPLACE the power
steering assembly. REFER
to Section 211-02.
GO to A19.
Yes =
No = REPLACE the A/C
compressor. REFER to
Section 412-03.
GO to A20.
Yes =
No = REPLACE the A/C IMC.
REFER to Section 412-03.
GO to A21.
Yes =
No = REPLACE the PTC heater.
REFER to Section 412-02.
GO to A22.
Yes =
No = REPLACE the PTC
switching module. REFER
to Section 412-02.
GO to A23.
Yes =
2001 Ranger EV, 01/2001