Dodge Dakota (ND). Manual — part 272

P0931-BTSI CONTROL CIRCUIT HIGH (CONTINUED)

3.

CHECK THE (B30) BTSI SOLENOID CONTROL CIRCUIT FOR AN OPEN

Disconnect the Instrument Cluster C1 harness connector.

Measure the resistance of the (B30) 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 (B30) BTSI Solenoid Control circuit for an

open.

Perform the BODY VERIFICATION TEST-VER 1. (Refer to
8 - ELECTRICAL/ELECTRONIC CONTROL MODULES/
FRONT CONTROL MODULE - DIAGNOSIS AND TEST-
ING)

No

>> Go To 4

4.

CHECK THE OPERATION OF THE BTSI SOLENOID

Reconnect the Instrument Cluster C1 harness connector.

Turn the ignition on.

Using a 12–volt test light connected to ground, check the (B30) BTSI
Solenoid Control circuit.

With the scan tool, actuate the BTSI Solenoid.

Does the test light illuminate brightly?

Yes

>> Replace the Transmission Unlock (BTSI)Solenoid in accor-

dance with the Service Information.

Perform the BODY VERIFICATION TEST-VER 1. (Refer to
8 - ELECTRICAL/ELECTRONIC CONTROL MODULES/
FRONT CONTROL MODULE - DIAGNOSIS AND TEST-
ING)

No

>> Replace the Instrument Cluster in accordance with the

Service Information.

Perform the BODY VERIFICATION TEST-VER 1. (Refer to
8 - ELECTRICAL/ELECTRONIC CONTROL MODULES/
FRONT CONTROL MODULE - DIAGNOSIS AND TEST-
ING)

8J - 30

INSTRUMENT CLUSTER - ELECTRICAL DIAGNOSTICS

ND

U0019–CAN B BUS

ND

INSTRUMENT CLUSTER - ELECTRICAL DIAGNOSTICS

8J - 31

U0019–CAN B BUS (CONTINUED)

For a complete wiring diagram Refer to Section 8W.

•

When Monitored:
Continuously

•

Set Condition:
Whenever the Can B Bus (+) or B Bus (–) circuit is open, shorted to voltage or shorted to ground, this code
will set.

Possible Causes

CAN B BUS DTCs IN FRONT CONTROL MODULE

(D54) CAN B BUS (–) CIRCUIT OPEN

(D55) CAN B BUS (+) CIRCUIT OPEN

INSTRUMENT CLUSTER

Diagnostic Test

1.

TEST FOR INTERMITTENT CONDITION

Turn the ignition on.

With the scan tool, record and erase DTCs

Cycle the ignition from on to off 3 times.

Turn the ignition on.

With the scan tool, read DTCs.

Does the scan tool display U0019–CAN B BUS CIRCUIT?

Yes

>> Go To 2

No

>> The conditions that caused this code to set are not present at this time. Using the wiring diagram/sche-

matic as a guide, inspect the wiring and connectors.

Perform the BODY VERIFICATION TEST-VER 1. (Refer to 8 - ELECTRICAL/ELECTRONIC CONTROL
MODULES/FRONT CONTROL MODULE - DIAGNOSIS AND TESTING)

2.

CHECK FRONT CONTROL MODULE DTCs

With the scan tool, read Front Control Module DTCs

Does the scan tool display any CAN B BUS DTCs – ACTIVE?

Yes

>> Refer to the symptom list for problems related to Communication in the ELECTRICAL.– ELECTRONIC

CONTROL MODULES – ELECTRICAL DIAGNOSES section.

Perform the BODY VERIFICATION TEST-VER 1. (Refer to 8 - ELECTRICAL/ELECTRONIC CONTROL
MODULES/FRONT CONTROL MODULE - DIAGNOSIS AND TESTING)

No

>> Go to 3

8J - 32

INSTRUMENT CLUSTER - ELECTRICAL DIAGNOSTICS

ND

U0019–CAN B BUS (CONTINUED)

3.

CAN B BUS (+) CIRCUIT OPEN

Turn the ignition off.

Disconnect the Instrument Cluster C2 harness connector.

Disconnect the Front Control Module C1 harness connector.

Measure the resistance of the (D55) Can B Bus (+) circuit between the
Front Control Module C1 harness connector and the Instrument Clus-
ter C2 harness connector.

Is the resistance below 2.0 ohms?

Yes

>> Go To 4

No

>> Repair the Can B Bus (+) circuit for an open.

Perform the BODY VERIFICATION TEST-VER 1. (Refer to
8 - ELECTRICAL/ELECTRONIC CONTROL MODULES/
FRONT CONTROL MODULE - DIAGNOSIS AND TEST-
ING)

4.

CAN B BUS (–) CIRCUIT OPEN

Measure the resistance of the (D54) Can B Bus (–) circuit between the
Front Control Module C1 harness connector and the Instrument Clus-
ter C2 harness connector.

Is the resistance below 2.0 ohms?

Yes

>> Replace the Instrument Cluster in accordance with the ser-

vice information.

Perform the BODY VERIFICATION TEST-VER 1. (Refer to
8 - ELECTRICAL/ELECTRONIC CONTROL MODULES/
FRONT CONTROL MODULE - DIAGNOSIS AND TEST-
ING)

No

>> Repair the Can B Bus (–) circuit for an open.

Perform the BODY VERIFICATION TEST-VER 1. (Refer to
8 - ELECTRICAL/ELECTRONIC CONTROL MODULES/
FRONT CONTROL MODULE - DIAGNOSIS AND TEST-
ING)

ND

INSTRUMENT CLUSTER - ELECTRICAL DIAGNOSTICS

8J - 33