Dodge Durango (HB). Manual — part 77
B1D5B–ADJUSTABLE PEDAL SWITCH CIRCUIT PERFORMANCE
HB
BRAKES - ABS ELECTRICAL DIAGNOSTICS
5 - 87
B1D5B–ADJUSTABLE PEDAL SWITCH CIRCUIT PERFORMANCE (CONTINUED)
For the Adjustable Pedal System circuit diagram. (Refer to 5 - BRAKES - SCHEMATICS AND DIAGRAMS)
For a complete wiring diagram Refer to Section 8W.
•
When Monitored:
The Adjustable Pedals Switch is in active operation.
•
Set Condition:
The Seat Memory Module detects an activation of both pedal switches at the same time.
Possible Causes
CONNECTOR/TERMINAL DAMAGE
(Q100) ADJUSTABLE PEDALS SWITCH REARWARD CIRCUIT SHORTED TO GROUND
(Q900) ADJUSTABLE PEDALS SWITCH FORWARD CIRCUIT SHORTED TO GROUND
(Q100) ADJUSTABLE PEDALS SWITCH REARWARD CIRCUIT AND (Q900) ADJUSTABLE PEDALS SWITCH
FORWARD CIRCUIT SHORTED TOGETHER
ADJUSTABLE PEDALS SWITCH - INTERNAL FAULT
SEAT MEMORY MODULE - INTERNAL FAULT
Diagnostic Test
1.
CHECK FOR DTC B1D5B–ADJUSTABLE PEDAL SWITCH CIRCUIT PERFORMANCE
NOTE: This DTC must be active for the results of this test to be valid.
Turn the ignition on.
With the scan tool, record and erase DTC’s.
Cycle the ignition switch from off to on.
Cycle the Adjustable Pedals Switch forward and rearward.
With the scan tool, read DTC’s
Does the scan tool display: B1D5B–ADJUSTABLE PEDAL
SWITCH CIRCUIT PERFORMANCE?
Yes
>> Go To 2
No
>> Refer to the INTERMITTENT CONDITION diagnostic pro-
cedure.
Perform APS VERIFICATION TEST - VER 1.
5 - 88
BRAKES - ABS ELECTRICAL DIAGNOSTICS
HB
B1D5B–ADJUSTABLE PEDAL SWITCH CIRCUIT PERFORMANCE (CONTINUED)
2.
CHECK CONNECTOR/TERMINAL FOR DAMAGE
NOTE: Check all terminals for broken, bent, pushed out, or cor-
roded terminals.
Turn the ignition off.
Inspect the Seat Memory Module harness connector, Adjustable Ped-
als Switch, and Adjustable Pedals Switch harness connector.
Is the Adjustable Pedals Switch or any of the connectors/termi-
nals damaged?
Yes
>> Repair as necessary.
Perform APS VERIFICATION TEST - VER 1.
No
>> Go To 3
3.
CHECK (Q100) ADJUSTABLE PEDALS SWITCH REARWARD CIRCUIT FOR A SHORT TO GROUND
Turn the ignition off.
Disconnect the Seat Memory Module harness connector.
Disconnect the Adjustable Pedals Switch harness connector.
Using a 12-volt test light connected to 12-volts, probe the (Q100)
Adjustable Pedals Switch Rearward circuit.
Does the test light illuminate brightly?
Yes
>> Repair the (Q100) Adjustable Pedals Switch Rearward cir-
cuit for a short to ground.
Perform APS VERIFICATION TEST - VER 1.
No
>> Go To 4
HB
BRAKES - ABS ELECTRICAL DIAGNOSTICS
5 - 89
B1D5B–ADJUSTABLE PEDAL SWITCH CIRCUIT PERFORMANCE (CONTINUED)
4.
CHECK (Q900) ADJUSTABLE PEDALS SWITCH FORWARD CIRCUIT FOR A SHORT TO GROUND
Turn the ignition off.
Disconnect the Seat Memory Module harness connector.
Disconnect the Adjustable Pedals Switch harness connector.
Using a 12-volt test light connected to 12-volts, probe the (Q900)
Adjustable Pedals Switch Forward circuit.
Does the test light illuminate brightly?
Yes
>> Repair the (Q900) Adjustable Pedals Switch Forward cir-
cuit for a short to ground.
Perform APS VERIFICATION TEST - VER 1.
No
>> Go To 5
5.
CHECK (Q100) ADJUSTABLE PEDALS SWITCH REARWARD CIRCUIT AND (Q900) ADJUSTABLE
PEDALS SWITCH FORWARD CIRCUIT FOR A SHORT TOGETHER
Turn the ignition off.
Disconnect the Seat Memory Module harness connector.
Disconnect the Adjustable Pedals Switch harness connector.
Measure the resistance between the (Q100) Adjustable Pedals Switch
Rearward circuit and (Q900) Adjustable Pedals Switch Forward circuit.
Is the resistance above 5.0 ohms?
Yes
>> Go To 6
No
>> Repair the (Q100) Adjustable Pedals Switch Rearward cir-
cuit and (Q900) Adjustable Pedals Switch Forward circuit
for a short together.
Perform APS VERIFICATION TEST - VER 1.
5 - 90
BRAKES - ABS ELECTRICAL DIAGNOSTICS
HB
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