Jeep Grand Cherokee WK. Manual — part 126
B1D67–ADJUSTABLE PEDAL CONTROL CIRCUIT PERFORMANCE
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BRAKES - BRAKE CONTROLLER ELECTRICAL DIAGNOSTICS
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B1D67–ADJUSTABLE PEDAL CONTROL 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 Motor is in active operation.
•
Set Condition:
The Memory Seat Module detects that the Adjustable Pedals Motor has been activated for a time period and
has not spun with three motor direction commands.
Possible Causes
CONNECTOR/TERMINAL DAMAGE
MECHANICAL FAILURE IN THE ADJUSTABLE PEDALS
ADJUSTABLE PEDALS MOTOR FORWARD CIRCUIT OPEN
ADJUSTABLE PEDALS MOTOR REARWARD CIRCUIT OPEN
RETURN CIRCUIT OPEN
ADJUSTABLE PEDALS MOTOR - INTERNAL FAULT
MEMORY SEAT MODULE - INTERNAL FAULT
Diagnostic Test
1.
CHECK FOR DTC B1D67–ADJUSTABLE PEDAL CONTROL 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 and hold the Adjustable Pedals Switch forward, rearward, and forward at two second intervals.
With the scan tool, read DTC’s
Does the scan tool display: B1D67–ADJUSTABLE PEDAL CONTROL CIRCUIT PERFORMANCE?
Yes
>> Go To 2
No
>> Refer to the INTERMITTENT CONDITION diagnostic procedure.
Perform APS VERIFICATION TEST - VER 1.
2.
CHECK CONNECTOR/TERMINAL FOR DAMAGE
NOTE: Check all terminals for broken, bent, pushed out, or corroded terminals.
Turn the ignition off.
Inspect the Memory Seat Module harness connector, Adjustable Pedals Motor, and Adjustable Pedals Motor harness
connector.
Is the Adjustable Pedals Motor or any of the connectors/terminals damaged?
Yes
>> Repair as necessary.
Perform APS VERIFICATION TEST - VER 1.
No
>> Go To 3
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BRAKES - BRAKE CONTROLLER ELECTRICAL DIAGNOSTICS
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B1D67–ADJUSTABLE PEDAL CONTROL CIRCUIT PERFORMANCE (CONTINUED)
3.
CHECK ADJUSTABLE PEDALS ASSEMBLY FOR MECHANICAL DAMAGE
Turn the ignition off.
Inspect the Adjustable Pedals Assembly for any physical damage.
NOTE: Check for any conditions that would cause the motor to stall or be stuck.
Is the Adjustable Pedals Assembly damaged or broken?
Yes
>> Replace the Adjustable Pedals Assembly in accordance with the Service Information.
Perform APS VERIFICATION TEST - VER 1.
No
>> Go To 4
4.
CHECK ADJUSTABLE PEDALS MOTOR FORWARD CIRCUIT FOR AN OPEN
Disconnect the Memory Seat Module harness connector.
Disconnect the Adjustable Pedals Motor harness connector
Connect a jumper wire between the Adjustable Pedals Motor Forward circuit and ground in the Adjustable Pedal
Motor harness connector.
Using a 12-volt test light connected to 12-volts, probe the Adjustable Pedals Motor Forward circuit.
Does the test light illuminate brightly?
Yes
>> Go To 5
No
>> Repair the Adjustable Pedals Motor Forward circuit for an open.
Perform APS VERIFICATION TEST - VER 1.
5.
CHECK ADJUSTABLE PEDALS MOTOR REARWARD CIRCUIT FOR AN OPEN
Connect a jumper wire between the Adjustable Pedals Motor Rear-
ward circuit and ground in the Adjustable Pedal Motor harness con-
nector.
Using a 12-volt test light connected to 12-volts, probe the Adjustable
Pedals Motor Rearward circuit.
Does the test light illuminate brightly?
Yes
>> Go To 6
No
>> Repair the Adjustable Pedals Motor Rearward circuit for an
open.
Perform APS VERIFICATION TEST - VER 1.
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BRAKES - BRAKE CONTROLLER ELECTRICAL DIAGNOSTICS
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B1D67–ADJUSTABLE PEDAL CONTROL CIRCUIT PERFORMANCE (CONTINUED)
6.
CHECK SENSOR RETURN CIRCUIT FOR AN OPEN
Connect a jumper wire between the Sensor Return circuit and ground
in the Adjustable Pedal Motor harness connector.
Using a 12-volt test light connected to 12-volts, probe the Sensor
Return circuit.
Does the test light illuminate brightly?
Yes
>> Go To 7
No
>> Repair the Sensor Return circuit for an open.
Perform APS VERIFICATION TEST - VER 1.
7.
CHECK ADJUSTABLE PEDALS MOTOR
Measure the resistance between the Adjustable Pedals Motor Forward and Adjustable Pedals Motor Rearward ter-
minals at the Adjustable Pedals Motor.
Is the resistance below 100.0 ohms?
Yes
>> Replace and reprogram the Memory Seat Module in accordance with the Service Information.
Perform APS VERIFICATION TEST - VER 1.
No
>> Replace the Adjustable Pedals Motor in accordance with the Service Information.
Perform APS VERIFICATION TEST - VER 1.
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BRAKES - BRAKE CONTROLLER ELECTRICAL DIAGNOSTICS
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