Ford 2001 Ranger, Manual

Page: 341 / 1218

412-03-9 412-03-9 Air Conditioning
DIAGNOSIS AND TESTING (Continued)
PINPOINT TEST E: DTC B2606 A/C TEMPERATURE SENSOR OUT OF RANGE
TEST STEP ACTION TO TAKE
E1 CHECK FOR COMPRESSOR OVERTEMPERATURE FAULT
•
Check the interface adapter assembly (IAA) module for continuous Yes = GO to E2.
diagnostic trouble codes (DTCs).
•
Does DTC B2518 Compressor Overtemperature Fault occur along
No = GO to E3.
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 = GO to E5.
module disconnected.
•
With key OFF, disconnect A/C overtemperature sensor C1995 and No = REPAIR the PK wire.
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. Yes = GO to E4.
•
Is the temperature equal to 215
°
C (419
°
F)?
No = GO to E5.
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 = GO to E5.
module disconnected.
•
With key OFF, disconnect A/C overtemperature sensor C1995 and No = REPAIR the wire(s) in
measure the resistance of the PK wire between A/C overtemperature question.
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 Yes = REPLACE the IAA module.
measure the resistance between the terminals of the A/C overtemperature REFER to Section 412-04 .
sensor and compare the reading to the values below:
Actual Temperature (Approximate)
No = REPLACE the A/C
compressor.
— 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?
2001 Ranger EV, 01/2001