Ford Electric Ranger 2001 Manual page 341

412-03-9
DIAGNOSIS AND TESTING (Continued)
PINPOINT TEST E: DTC B2606 A/C TEMPERATURE SENSOR OUT OF RANGE
E1 CHECK FOR COMPRESSOR OVERTEMPERATURE FAULT
• Check the interface adapter assembly (IAA) module for continuous
diagnostic trouble codes (DTCs).
• Does DTC B2518 Compressor Overtemperature Fault occur along
with DTC B2606 A/C Temperature Sensor Out of Range?
E2 CHECK CIRCUIT 3220 (PK) FOR SHORT TO GROUND
• Connect 104-Pin Breakout Box (BOB) to IAA module C1945; leave IAA Yes =
module disconnected.
• With key OFF, disconnect A/C overtemperature sensor C1995 and
measure the resistance between BOB pin 47 and ground (BOB pin 80).
• Is the resistance greater than 10,000 ohms?
E3 CHECK COMPRESSOR TEMPERATURE
• With key ON, monitor IAA module PID AC CTMP.
• Is the temperature equal to 215°C (419°F)?
E4 CHECK CIRCUITS 3220 (PK) AND 3221 (BR/LB) FOR OPEN(S)
• Connect 104-Pin Breakout Box (BOB) to IAA module C1945; leave IAA Yes =
module disconnected.
• With key OFF, disconnect A/C overtemperature sensor C1995 and
measure the resistance of the PK wire between A/C overtemperature
sensor C1995 and BOB pin 47.
• With key OFF, measure the resistance of the BR/LB wire between A/C
overtemperature sensor C1995 and BOB pin 57.
• Are the resistances less than 5 ohms?
E5 CHECK A/C OVERTEMPERATURE SENSOR
• With key OFF, disconnect A/C overtemperature sensor C1995 and
measure the resistance between the terminals of the A/C overtemperature
sensor and compare the reading to the values below:
Actual Temperature (Approximate)
— 0 °C (32°F) = 111,960-136,840 ohms
— 10 °C (50°F) = 77,040-94,160 ohms
— 15 °C (59°F) = 63,900-78,100 ohms
— 20 °C (68°F) = 53,010-64,790 ohms
— 25 °C (77°F) = 44,010-53,790 ohms
— 30 °C (86°F) = 36,540-44,660 ohms
— 35 °C (95°F) = 30,330-37,070 ohms
— 40 °C (104°F) = 25,110-30,690 ohms
— 45 °C (113°F) = 20,520-25,080 ohms
— 50 °C (122°F) = 17,100-20,900 ohms
— 55 °C (131°F) = 15,300-18,700 ohms
— 60 °C (140°F) = 11,880-14,520 ohms
— 65 °C (149°F) = 9,630-11,770 ohms
— 70 °C (158°F) = 8,010-9,790 ohms
— 75 °C (167°F) = 6,570-8,030 ohms
— 80 °C (176°F) = 5,580-6,820 ohms
— 85 °C (185°F) = 4,680-5,720 ohms
— 90 °C (194°F) = 3,780-4,620 ohms
— 95 °C (203°F) = 3,150-3,850 ohms
— 100 °C (212°F) = 2,610-3,190 ohms
• Is the resistance OK?
Air Conditioning
TEST STEP ACTION TO TAKE
GO to E2.
Yes =
GO to E3.
No =
GO to E5.
No = REPAIR the PK wire.
GO to E4.
Yes =
No = GO to E5.
GO to E5.
No = REPAIR the wire(s) in
question.
Yes = REPLACE the IAA module.
REFER to Section
No = REPLACE the A/C
compressor.
2001 Ranger EV, 01/2001
412-03-9
412-04.