Dodge Ram Truck 1500-2500-3500. Manual — part 370
BTSI OUTPUT CIRCUIT HIGH
8J - 40
INSTRUMENT CLUSTER - ELECTRICAL DIAGNOSTICS
DR/DH
BTSI OUTPUT CIRCUIT HIGH (CONTINUED)
For the Instrument Cluster circuit diagram (Refer to 8 - ELECTRICAL/INSTRUMENT CLUSTER - SCHEMATICS
AND DIAGRAMS).
For a complete wiring diagram Refer to Section 8W.
•
When Monitored:
With the ignition in the Unlock or Run position and the driver’s foot applied to the brake pedal.
•
Set Condition:
The instrument cluster detects a high value on the BTSI Solenoid Control Circuit.
Possible Causes
(K32) BTSI CONTROL CIRCUIT OPEN
(Z101) BTSI GROUND CIRCUIT OPEN
BTSI SOLENOID
INSTRUMENT CLUSTER
1.
BTSI SOLENOID
Turn the ignition on.
Disconnect the BTSI Solenoid.
Using a 12-volt test light connected to ground, check for voltage on
the (K32) BTSI Solenoid control circuit.
With the DRBIII
T
, actuate the BTSI Solenoid.
Does the test light illuminate brightly?
Yes
>> Go To 2
No
>> Go To 3
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INSTRUMENT CLUSTER - ELECTRICAL DIAGNOSTICS
8J - 41
BTSI OUTPUT CIRCUIT HIGH (CONTINUED)
2.
CHECK THE (Z101) BTSI GROUND CIRCUIT FOR AN OPEN
Turn the ignition off.
Connect a 12-volt test light between the (K32) BTSI Solenoid Control
circuit and the (Z101) BTSI Solenoid Ground circuit.
Turn the ignition on.
With the DRBIII
T
, actuate the BTSI Solenoid.
Does the test light illuminate brightly?
Yes
>> Replace the BTSI Solenoid in accordance with the service
information.
Perform BODY VERIFICATION TEST - VER 1. (Refer to
BODY VERIFICATION TEST - VER 1.)
No
>> Repair the (Z101) BTSI Solenoid ground circuit for an
open.
Perform BODY VERIFICATION TEST - VER 1. (Refer to
BODY VERIFICATION TEST - VER 1.)
3.
CHECK THE (K32) BTSI CONTROL CIRCUIT FOR AN OPEN
Turn the ignition off.
Disconnect the BTSI Solenoid harness connector.
Disconnect the Instrument Cluster C1 harness connector.
Measure the resistance of the (K32) BTSI Solenoid control circuit
between the BTSI Solenoid harness connector and the Instrument
Cluster C1 harness connector.
Is the resistance above 5.0 ohms?
Yes
>> Repair the (K32) BTSI Solenoid control circuit for an open.
Perform BODY VERIFICATION TEST - VER 1. (Refer to
BODY VERIFICATION TEST - VER 1.)
No
>> Replace the Instrument Cluster in accordance with the ser-
vice information.
Perform BODY VERIFICATION TEST - VER 1. (Refer to
BODY VERIFICATION TEST - VER 1.)
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INSTRUMENT CLUSTER - ELECTRICAL DIAGNOSTICS
DR/DH
BTSI OUTPUT CIRCUIT SHORTED OR OPEN
DR/DH
INSTRUMENT CLUSTER - ELECTRICAL DIAGNOSTICS
8J - 43
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