In looking in our reference, I noticed their appears to be a transmission control module and one for the transfer case. I'm seeing a number of DTCs that would or could apply in this case.
BOO shorted or open to ground.
BOO shorted to power.
4WD Hi indicator shorted to ground or power.
4WD Lo indicator shorted to ground or power.
Select switch shorted to ground or power.
T/C Lo to Hi shift relay coil shorted
4WD clutch relay open/shorted to power or ground-Seemingly most likely-causes improper operation.
And on.
TRANSFER CASE DIAGNOSIS - BORG WARNER 44-05 -1998 Ford Explorer
Page 1 of 6
DIAGNOSTIC TROUBLE CODE (DTC) DEFINITIONS
DIAGNOSTIC TROUBLE CODE INDEX
DTC B1342
B2105
(1)
Description GEM/CTM Defective
Throttle Position Input Out Of Range Low
Test
(2)
TEST A: IMPROPER
OPERATION IN A4WD & 4WD
HIGH MODES TEST A:
IMPROPER OPERATION IN
A4WD & 4WD HIGH MODES
TEST B: VEHICLE DOES NOT SHIFT
BETWEEN A4WD, 4WD HIGH & 4WD
LOW MODES PROPERLY,
OPERATES PROPERLY IN
A4WD MODE TEST B: VEHICLE
DOES NOT SHIFT BETWEEN A4WD,
4WD HIGH & 4WD LOW MODES
PROPERLY, OPERATES
PROPERLY IN A4WD MODE
TEST B: VEHICLE DOES NOT SHIFT
BETWEEN A4WD, 4WD HIGH & 4WD
LOW MODES PROPERLY,
OPERATES PROPERLY IN
A4WD MODE TEST C (1998): 4X4
HIGH &/OR 4X4 LOW INDICATOR
NOT OPERATING PROPERLY
TEST C (1998): 4X4
B2106
Throttle Position Input Out Of Range High
P0500
VSS Signal Circuit
P1483
BOO Open Or Short Circuit To Gnd
P1485
BOO Input Short To Power
P1804
4WD High Indicator Open/Short To Gnd
P1806
4WD High Indicator Short To Power
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TRANSFER CASE DIAGNOSIS - BORG WARNER 44-05 -1998 Ford Explorer
Page 2 of 6
HIGH &/OR 4X4 LOW INDICATOR
NOT OPERATING PROPERLY
TEST C (1998): 4X4 HIGH &/OR 4X4
LOW INDICATOR NOT OPERATING
PROPERLY TEST C (1998): 4X4
HIGH &/OR 4X4 LOW INDICATOR
NOT OPERATING PROPERLY
TEST A: IMPROPER
OPERATION IN A4WD & 4WD
HIGH MODES TEST A:
IMPROPER OPERATION IN
A4WD & 4WD HIGH MODES
TEST B: VEHICLE DOES NOT SHIFT
BETWEEN A4WD, 4WD HIGH & 4WD
LOW MODES PROPERLY,
OPERATES PROPERLY IN
A4WD MODE TEST B: VEHICLE
DOES NOT SHIFT BETWEEN A4WD,
4WD HIGH & 4WD LOW MODES
PROPERLY, OPERATES
PROPERLY IN A4WD MODE
TEST A: IMPROPER
OPERATION IN A4WD & 4WD
HIGH MODES TEST A:
IMPROPER
P1808
4WD Low Indicator Open/Short To Gnd
P1810
4WD Low Indicator Short To Power
P1812
4WD Mode Select Switch Open/Short To Gnd
P1815
4WD Mode Select Switch Short To Power
P1820
T/C LO To HI Shift Relay Open/Short To Gnd
P1822
T/C LO To HI Shift Relay Coil Short To Power
P1824
4WD Clutch Relay Open/Short To Gnd
P1826
4WD Clutch Relay Short To Power
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TRANSFER CASE DIAGNOSIS - BORG WARNER 44-05 -1998 Ford Explorer
Page 3 of 6
OPERATION IN A4WD & 4WD
HIGH MODES TEST B: VEHICLE
DOES NOT SHIFT BETWEEN A4WD,
4WD HIGH & 4WD LOW MODES
PROPERLY, OPERATES
PROPERLY IN A4WD MODE
TEST B: VEHICLE DOES NOT SHIFT
BETWEEN A4WD, 4WD HIGH & 4WD
LOW MODES PROPERLY,
OPERATES PROPERLY IN
A4WD MODE TEST B: VEHICLE
DOES NOT SHIFT BETWEEN A4WD,
4WD HIGH & 4WD LOW MODES
PROPERLY, OPERATES
PROPERLY IN A4WD MODE
TEST B: VEHICLE DOES NOT SHIFT
BETWEEN A4WD, 4WD HIGH & 4WD
LOW MODES PROPERLY,
OPERATES PROPERLY IN
A4WD MODE TEST B: VEHICLE
DOES NOT SHIFT BETWEEN A4WD,
4WD HIGH & 4WD LOW MODES
PROPERLY, OPERATES
PROPERLY IN A4WD MODE
TEST B: VEHICLE DOES NOT SHIFT
P1828
T/C HI To LO Shift Relay Open/Short To Gnd
P1830
T/C HI To LO Shift Relay Coil Short To Power
P1836
Front Drive Shaft Speed Sensor Circuit
P1837
Rear Drive Shaft Speed Sensor Circuit
P1838
T/C Shift Motor Circuit Failure
P1846
T/C Contact Plate "A" Open Circuit
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TRANSFER CASE DIAGNOSIS - BORG WARNER 44-05 -1998 Ford Explorer
Page 4 of 6
BETWEEN A4WD, 4WD HIGH & 4WD
LOW MODES PROPERLY,
OPERATES PROPERLY IN
A4WD MODE TEST B: VEHICLE
DOES NOT SHIFT BETWEEN A4WD,
4WD HIGH & 4WD LOW MODES
PROPERLY, OPERATES
PROPERLY IN A4WD MODE
TEST B: VEHICLE DOES NOT SHIFT
BETWEEN A4WD, 4WD HIGH & 4WD
LOW MODES PROPERLY,
OPERATES PROPERLY IN
A4WD MODE TEST B: VEHICLE
DOES NOT SHIFT BETWEEN A4WD,
4WD HIGH & 4WD LOW MODES
PROPERLY, OPERATES
PROPERLY IN A4WD MODE
TEST B: VEHICLE DOES NOT SHIFT
BETWEEN A4WD, 4WD HIGH & 4WD
LOW MODES PROPERLY,
OPERATES PROPERLY IN
A4WD MODE TEST B: VEHICLE
DOES NOT SHIFT BETWEEN A4WD,
4WD HIGH & 4WD LOW MODES
PROPERLY, OPERATES
P1850
T/C Contact Plate "B" Open Circuit
P1854
T/C Contact Plate "C" Open Circuit
P1858
T/C Contact Plate "D" Open Circuit
P1866
T/C System Concern
P1867
T/C Contact Plate General Circuit Failure
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TRANSFER CASE DIAGNOSIS - BORG WARNER 44-05 -1998 Ford Explorer
Page 5 of 6
PROPERLY IN A4WD MODE
TEST B: VEHICLE DOES NOT SHIFT
BETWEEN A4WD, 4WD HIGH & 4WD
LOW MODES PROPERLY,
OPERATES PROPERLY IN
A4WD MODE TEST B: VEHICLE
DOES NOT SHIFT BETWEEN A4WD,
4WD HIGH & 4WD LOW MODES
PROPERLY, OPERATES
PROPERLY IN A4WD MODE
TEST B: VEHICLE DOES NOT SHIFT
BETWEEN A4WD, 4WD HIGH & 4WD
LOW MODES PROPERLY,
OPERATES PROPERLY IN
A4WD MODE
P1874
Hall Effect Sensor Power Circuit Failure
P1875
Hall Effect Sensor Power Circuit Short
P1891
T/C Contact Plate Ground Return Open Circuit
(1) See TESTING section.
(2) Clear codes and retest system. If DTC B1342 is still present, replace GEM.
CLEARING DIAGNOSTIC TROUBLE CODES
1.
Connect New Generation Star (NGS) scan tester on Data Link Connector (DLC) and perform proper hook-up. See EQUIPMENT HOOK-UP.
Turn ignition switch to ON position unless otherwise instructed by specified test procedure. Rotate dial on scan tester to DIAGNOSTIC DATA LINK menu and press trigger.
Rotate dial on scan tester to highlight the desired module you wish to access. Ensure DIAGNOSTIC TEST MODES is highlighted and press trigger.
Rotate dial on scan tester to highlight RETRIEVE/CLEAR CONTINUOUS DTC and press trigger. Press button No. 3 to start.
To clear an individual DTC from a selected module, rotate dial on scan tool to highlight the DTC to be cleared. Press button No. 8. This will clear only that DTC from that module.
To clear all DTCs from a selected module, press button No. 7. This clears all DTCs from that module. After DTCs are cleared from ABS control module, turn ignition switch to OFF position
and then back to the RUN position.
2.
3.
4.
5.
6.
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Page 6 of 6
RETRIEVING PARAMETER IDENTIFICATION (PID) INFORMATION
NOTE:
This procedure may be used to verify operation of inputs and outputs for
a selected module.
1.
Connect New Generation Star (NGS) scan tester on Data Link Connector (DLC) and perform proper hook-up. See EQUIPMENT HOOK-UP.
NOTE:
If instructed to retrieve PID from a specified test procedure, ensure
ignition switch is in proper position as listed in test procedure. GEM
requires ignition switch to be in ON position or the test will fail.
2.
Turn ignition switch to ON position unless otherwise instructed by specified test procedure. Rotate dial on scan tester to DIAGNOSTIC DATA LINK menu and press trigger.
Rotate dial on scan tester to highlight the desired module you wish to access and press trigger. Rotate dial on scan tester to PID/DATA MONITOR AND RECORD and press trigger.
Rotate dial on scan tester to highlight the PID acronyms you wish to view and press trigger. Repeat this procedure until all desired PIDs are selected. When all PID acronyms have been
selected, press 7 button to view all selected PIDs.
3.
4.
12/31/2011
Saturday, December 31st, 2011 AT 7:37 PM