Dodge Ram Truck 1500-2500-3500. Manual — part 1836

NEUTRAL INDICATOR SHORT TO GROUND (CONTINUED)

4.

(G95) NEUTRAL INDICATOR CIRCUIT SHORT TO VOLTAGE

Ignition on, engine not running.

Measure the voltage of the (G95) Neutral Indicator circuit.

Is the voltage above 0.5 volt?

Yes

>> Repair the (G95) Neutral Indicator circuit for a short to

voltage.

Perform TRANSFER CASE VERIFICATION TEST. (Refer
to 21 - TRANSMISSION/TRANSAXLE/TRANSFER CASE
- DIAGNOSIS AND TESTING)

No

>> Go To 5

5.

TRANSFER CASE SELECTOR SWITCH

Turn the ignition off to the lock position.

Connect the Transfer Case Control Module C1 harness connector.

Ignition on, engine not running.

With the DRBIII

T

under Inputs/Outputs, monitor the Neutral Lamp

state.

Connect a jumper wire between (G95) Neutral Indicator circuit in the
Transfer Case Control Module harness connector and ground.

Does the Neutral Lamp state change from Off with the jumper
wire removed to On with the jumper wire in place?

Yes

>> Replace the Transfer Case Selector Switch in accordance

with the Service Information.

No

>> Go To 6

Perform TRANSFER CASE VERIFICATION TEST. (Refer
to 21 - TRANSMISSION/TRANSAXLE/TRANSFER CASE
- DIAGNOSIS AND TESTING)

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TRANSFER CASE - ELECTRICAL DIAGNOSTICS (ETC)

DR/DH

NEUTRAL INDICATOR SHORT TO GROUND (CONTINUED)

6.

TRANSFER CASE CONTROL MODULE

Using the wiring diagram as a guide, inspect the wiring and connectors relative to this DTC. Inspect all power and
ground circuits. Repair as necessary.

If there are no Charging System related DTCs or other possible causes remaining, view repair.

Repair

Replace the Transfer Case Control Module in accordance with the Service Information.

Perform TRANSFER CASE VERIFICATION TEST. (Refer to 21 - TRANSMISSION/TRANSAXLE/
TRANSFER CASE - DIAGNOSIS AND TESTING)

7.

INTERMITTENT WIRING AND CONNECTORS

The conditions necessary to set this DTC are not present at this time.

Using the schematics as a guide, inspect the wiring and connectors specific to this circuit.

Wiggle test the wiring harness and connectors while checking for shorted and open circuits.

Using the DRBIII

T

, monitor the data related to this circuit while performing the wiggle test. Look for the data to

change or for the DTC to reset.

Were there any problems found?

Yes

>> Repair as necessary.

Perform TRANSFER CASE VERIFICATION TEST. (Refer to 21 - TRANSMISSION/TRANSAXLE/
TRANSFER CASE - DIAGNOSIS AND TESTING)

No

>> Test Complete.

DR/DH

TRANSFER CASE - ELECTRICAL DIAGNOSTICS (ETC)

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SELECTOR SWITCH/TRANSFER CASE—MISMATCH

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TRANSFER CASE - ELECTRICAL DIAGNOSTICS (ETC)

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SELECTOR SWITCH/TRANSFER CASE—MISMATCH (CONTINUED)

For a complete wiring diagram Refer to Section 8W.

•

When Monitored:
With the ignition on and the engine running.

•

Set Condition:
When the 2WD/AWD position is selected, the Transfer Case Control Module performs a diagnostic routine to
verify that the correct Transfer Case Selector Switch is in place.

Possible Causes

INTERMITTENT SELECTOR SWITCH/TRANSFER CASE - MISMATCH

CHARGING SYSTEM DTCS PRESENT

VERIFY MODULE TYPE 233/2WD

VERIFY MODULE TYPE 244/AWD

VERIFY SELECTOR SWITCH 233/2WD

VERIFY SELECTOR SWITCH 244/AWD

(T322) 5 VOLT SELECTOR SWITCH SUPPLY CIRCUIT OPEN

(K977) MODE SELECT CIRCUIT OPEN

TRANSFER CASE SELECTOR SWITCH 233/2WD

TRANSFER CASE SELECTOR SWITCH 244/AWD

TRANSFER CASE CONTROL MODULE

1.

CHARGING SYSTEM DTCS PRESENT

With the DRBIII

T

, read Engine DTCs.

Are there any Charging System related DTCs present?

Yes

>> Refer to the symptom list and perform the appropriate diagnostic procedure(s) as necessary.

Perform TRANSFER CASE VERIFICATION TEST. (Refer to 21 - TRANSMISSION/TRANSAXLE/
TRANSFER CASE - DIAGNOSIS AND TESTING)

No

>> Go To 2

2.

SELECTOR SWITCH/TRANSFER CASE — MISMATCH DTC PRESENT

With the DRBIII

T

, read Transfer Case DTCs. Record all DTC information.

NOTE: If there are any other Transfer Case Control Module DTCs present, perform the applicable diagnostic
procedures before continuing with this test.
With the DRBIII

T

, erase Transfer Case DTCs.

Start the engine and cycle the Transfer Case Selector Switch through all positions.

With the DRBIII

T

, read Transfer Case DTCs.

Does the DRBIII

T

display SELECTOR SWITCH/TRANSFER CASE — MISMATCH?

Yes

>> Go To 3

No

>> Go To 13

DR/DH

TRANSFER CASE - ELECTRICAL DIAGNOSTICS (ETC)

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