Ford Navigator 1998 Manuals

Manuals and User Guides for Ford Navigator 1998. We have 2 Ford Navigator 1998 manuals available for free PDF download: Workshop Manual

Ford Navigator 1998 Workshop Manual (65 pages)

Transfer Case

Brand: Ford | Category: Automobile | Size: 1 MB

Transfer Case
1
Special Tool(S)
1
A4WD Vacuum Schematic
1
4WD Mode Switch Input Resistances
1
Inspection and Verification
2
Visual Inspection Chart
2
GEM Diagnostic Trouble Code (DTC) Index
2
Neutral Safety Switch Input Conditions
2
GEM Parameter Identification (PID) Reference Chart
4
Symptom Chart
5
Pinpoint Tests
6
A1 Check the Ignition States — Monitor the Pid Ign_Gem
6
A2 Retrieve the Diagnostic Trouble Codes (Dtcs)
6
A3 Check the 4Wabs Module Input; 4Wabs Module Connected — Monitor the Pid Pwr_Rly
7
A4 Check the 4Wabs Module Input; 4Wabs Module Disconnected — Monitor the Pid Pwr_Rly
7
A5 Check Circuit 239 (W/O) for Short to Power
7
A6 Check Hall Effect Power Circuit for Short to Ground — Monitor the Pid Hallpwr
8
A7 Check the Hall Effect Circuit for Short to Ground — Transfer Case Assembly C201 Disconnected
8
A8 Check Front and Rear Hall Effect Sensors
9
A9 Check Circuit 774 (Lg) for Short to Ground
9
A10 Monitor the Front and Rear Hall Effect Pids Tra_Rsp and Tra_Fsp
9
A11 Check the Voltage to the Hall Effect Sensors — Circuit 774 (Lg)
10
A12 Check Circuit 774 (Lg) for Open
10
A13 Check Circuit 682 (Db) for Open
11
A14 Check the Voltage to the Hall Effect Sensors — Circuit 774 (Lg)
11
A15 Check the Hall Effect Sensor Ground Circuits 682 (Db) for Open
11
A16 Check Circuit 435 (Y/Lb)/722 (Lb) for Open
12
A17 Check Circuit 435 (Y/Lb)/772 (Lb) for Short to Ground
12
A18 Check Circuit 435 (Y/Lb)/772 (Lb) for Short to Power
12
A19 Monitor the A4Wd Clutch Relay Pid 4Wdclst
13
A20 Check Circuit 976 (O) for Short to Power
13
A21 Check Circuit 976 (O) for Short to Ground
14
A22 Check Circuit 976 (O) for Open
14
A23 Monitor the A4Wd Clutch Relay Pid 4Wdclst
14
A24 Monitor the Pid 4Wdclst — Rear Wheels Breaking Traction
15
A25 Monitor the Pid 4Wdclst for On--- Response
15
A26 Check Circuit 976 (O) for Short to Power
15
A27 Check the A4Wd Output
16
A28 Check Circuit 779 (Br) for Open
16
A29 Check Circuit 779 (Br) for Short to Ground
17
A30 Check Circuit 779 (Br) for Short to Power
17
A31 Check A4Wd Clutch Relay Circuit 57 (Bk) for Open
17
A32 Check the Voltage to the A4Wd Clutch Relay — Circuit 704 (Dg/Lg)
17
Pinpoint Test B: the Vehicle Does Not Shift between 2Wd/A4Wd and 4Wd Modes Properly
18
B1 Check the Ignition States — Monitor the Pid Ign_Gem
18
B2 Retrieve the Diagnostic Trouble Codes (Dtcs)
18
B3 Check the A4Wd Indicator
19
B4 Check the 4H Indicator
19
B5 Check the 4L Indicator
19
B6 Monitor the Mode Switch Pid 4Wdsgem
20
B7 Check the Mode Switch
20
B8 Check Circuit 780 (Db) for Open
20
B9 Check Circuit 780 (Db) for Short to Ground
21
B10 Check Circuit 780 (Db) for Short to Power
21
B11 Check Circuit 682 (Db) for Open
21
B12 Check Circuit 682 (Db) for Short to Power
22
B13 Check the Front Axle Engagement
22
B14 Check the Front Driveshaft Engagement
22
B15 Check the Front Driveshaft Disengagement
23
B16 Check the Front Axle Disengagement
23
B17 MONITOR the PIDS MTR_CCW and MTR_CW — ACTIVE COMMAND CW/CCW on
23
B18 Monitor the Pids Mtr_Ccw and Mtr_Cw Active Command Cw/Ccw to on
23
B19 Check the Voltage to the Transfer Case Shift Relays Coils — Circuit 704 (Dg/Lg)
24
B20 Check Circuit 781 (O/Lb) for Open
24
B21 Check Circuit 782 (Br/W) for Open
24
B22 Check Circuits 781 (O/Lb) and 782 (Br/W) for Short(S) to Ground
24
B23 Check Circuit 782 (Br/W) for Short to Power
25
B24 Check Circuit 781 (O/Lb) for Short to Power
25
B25 Check the Transfer Case Shift Relays Coils
25
B26 Check the Voltage to the Transfer Case Shift Motor — Active Command Cw/Ccw on
26
B27 Check the Voltage to the Transfer Case Shift Relays Switch Side — Circuit 704 (Dg/Lg)
26
B28 Check the Voltage to the Transfer Case Shift Motor — Active Command Cw/Ccw off
27
B29 Check Circuits 777 (Y) and 778 (O) for Short(S) to Power
27
B30 Check Circuits 777 (Y) and 778 (O) for Open
27
B31 Check Circuit 777 (Y) for Open
28
B32 Check Circuit 778 (O) for Open
28
B33 Check the Ground to the Transfer Case Shift Relays — Circuit 57 (Bk)
28
B34 Check the Contact Plate Switches — Monitor the Pids Plate_A, Plate_B, Plate_C and Plate_D
29
B35 Monitor the Pid Plate_A for Open
29
B36 Check Circuit 771 (P/Y) to the Contact Plate Switch a
30
B37 Check Circuit 771 (P/Y) for Short to Ground
30
B38 Check Circuit 771 (P/Y) for Open
30
B39 Check Circuit 771 (P/Y) for Short to Power
31
B40 Check Circuit 762 (Y/W) for Short to Power
31
B41 Check Circuit 762 (Y/W) for Open
31
B42 Monitor the Pid Plate_B for Open
32
B43 Check Circuit 770 (W) to the Contact Plate Switch B
32
B44 Check Circuit 770 (W) for Short to Ground
32
B45 Check Circuit 770 (W) for Open
33
B46 Check Circuit 770 (W) for Short to Power
33
B47 Monitor the Pid Plate_C for Open
33
B48 Check Circuit 764 (Br/W) to the Contact Plate Switch C
34
B49 Check Circuit 764 (Br/W) for Short to Ground
34
B50 Check Circuit 764 (Br/W) for Open
34
B51 Check Circuit 764 (Br/W) for Short to Power
35
B52 Monitor the Pid Plate_D for Open
35
B53 Check Circuit 763 (O/W) to the Contact Plate Switch D
35
B54 Check Circuit 763 (O/W) for Short to Ground
36
B55 Check Circuit 763 (O/W) for Open
36
B56 Check Circuit 763 (O/W) for Short to Power
36
B57 Check the Shift Motor
37
C1 Check the Ignition States — Monitor the Pid Ign_Gem
37
C2 Retrieve the Diagnostic Trouble Codes (Dtcs)
38
C3 Check the 4H Indicator
39
C4 Check the 4L Indicator
39
C5 Monitor the Mode Switch Pid 4Wdsgem
39
C6 Check the Mode Switch
39
C7 Check Circuit 780 (Db) for Open
40
C8 Check Circuit 780 (Db) for Short to Ground
40
C9 Check Circuit 780 (Db) for Short to Power
40
C10 Check Circuit 682 (Db) for Open
41
C11 Check Circuit 682 (Db) for Short to Power
41
C12 Check Bpp Switch Pid Boo_Gem
41
C13 Check the Voltage to the Bpp Switch
42
C14 Check the Bpp Switch
42
C15 Monitor the Tr Sensor Pid Ntrl_Sw
43
C16 Check the Ground to the Digital Transmission Range (Dtr) Sensor — Circuit 57 (Bk)
43
C17 Check Circuit 463 (R/W) for Open
43
C18 Check the Dtr Sensor
44
C19 Monitor the Vss Pid Vss_Gem
44
C20 Check Circuit 676 (Pk/O) for Open
44
C21 Check Circuit 679 (Gy/Bk) for Open
45
C22 Check the Fuse Junction Panel Circuit between the Gem and Circuit 676 (Pk/O)
45
C23 Check the Fuse Junction Panel Circuit between the Gem and Circuit 679 (Gy/Bk)
45
C24 Check the Contact Plate Switches — Monitor the Pids Plate_A, Plate_B, Plate_C and Plate_D
45
C25 Check the Pid Plate_A for Open
46
C26 Check Circuit 771 (P/Y) to the Contact Plate Switch a
47
C27 Check Circuit 771 (P/Y) for Short to Ground
47
C28 Check Circuit 771 (P/Y) for Open
47
C29 Check Circuit 771 (P/Y) for Short to Power
48
C30 Check Circuit 762 (Y/W) for Short to Power
48
C31 Check Circuit 762 (Y/W) for Open
48
C32 Check the Pid Plate_B for Open
49
C33 Check Circuit 770 (W) to the Contact Plate Switch B
49
C34 Check Circuit 770 (W) for Short to Ground
49
C35 Check Circuit 770 (W) for Open
50
C36 Check Circuit 770 (W) for Short to Power
50
C37 Check the Pid Plate_C for Open
50
C38 Check Circuit 764 (Br/W) to the Contact Plate Switch C
51
C39 Check Circuit 764 (Br/W) for Short to Ground
51
C40 Check Circuit 764 (Br/W) for Open
51
C41 Check Circuit 764 (Br/W) for Short to Power
52
C42 Check the Pid Plate_D for Open
52
C43 Check Circuit 763 (O/W) to the Contact Plate Switch D
52
C44 Check Circuit 763 (O/W) for Short to Ground
53
C45 Check Circuit 763 (O/W) for Open
53
C46 Check Circuit 763 (O/W) for Short to Power
53
C47 Check the Transfer Case Electric Shift Motor
53
D1 Check the Ignition States — Monitor the Pid Ign_Gem
54
D2 Retrieve the Diagnostic Trouble Codes (Dtcs)
55
D3 Check the 4H Indicator
56
D4 Check the 4L Indicator
56
D5 Check the A4Wd Indicator
56
D6 Check the Front Axle Engagement
56
D8 Check the Front Driveshaft Disengagement
57
D9 Check the Front Axle Disengagement
57
D10 Check 4Wd and 2Wd Vacuum Solenoid Circuits
57
D11 Check 4Wd and 2Wd Vacuum Hub Solenoids
57
D12 Check Circuits 145 (Gy/Bk) and 605 (R) for Short to Power
58
D13 MONITOR the 4WD and 2WD VACUUM SOLENOID Pids 4WDSOL and 2WDSOL
58
D14 Check the Voltage to the 4Wd and 2Wd Vacuum Solenoids — Circuit 294 (W/Lb)
58
D15 Check the 2Wd and 4Wd Vacuum Solenoid
59
D16 Check Circuit 145 (Gy/Bk) for Open
59
D17 Check Circuit 605 (R) for Open
60
D18 Check Circuit 145 (Gy/Bk) for Short to Ground
60
D19 Check Circuit 605 (R) for Short to Ground
60
D20 Check the Vacuum at the 4Wd and 2Wd Vacuum Solenoids
60
D21 Check the 4Wd and 2Wd Vacuum Solenoids — Closed Condition
61
D22 Check the 4Wd and 2Wd Vacuum Solenoids — Open Condition
61
D23 Check the Vacuum Feed Lines from the Vacuum Motor
61
D24 Check the Vacuum Motor — Axle Engg on and Axle Dscn off
61
D25 Check the Vacuum Motor — Axle Engg off and Axle Dscn on
62
E1 Check the Ignition States — Monitor the Pid Ign_Gem
62
E2 Check Circuit 1052 (T/Bk) for Voltage
62
E3 Check the Fuse Junction Panel for Voltage
62
E4 Check Gem C239-26 Circuit 875 (Bk/Lb) for Continuity to Ground
63
E5 Check Gem C239-14 Circuit 875 (Bk/Lb) for Continuity to Ground
63

Ford Navigator 1998 Workshop Manual (7 pages)

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Brand: Ford | Category: Automobile | Size: 0.19 MB

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