Jeep Wrangler TJ. Manual - part 146

TEST

ACTION

APPLICABILITY

Turn the ignition off to the lock position.
Disconnect the TRS harness connector.
Disconnect the TCM harness connector.
Note: Check connectors - Clean/repair as necessary.
Measure the resistance between ground and the TRS T1 circuit in the TCM harness
connector.
Is the resistance below 5.0 ohms?

All

Yes

→ Repair the TRS T1 Sense circuit for a short to ground.

Perform 42RLE TRANSMISSION VERIFICATION TEST - VER
1.

→ Go To 9

Turn the ignition off to the lock position.
Disconnect the TRS harness connector.
Disconnect the TCM harness connector.
Remove the Transmission Control Relay from the PDC.
Note: Check connectors - Clean/repair as necessary.
Connect a jumper wire between the Fused B+ circuit and the Transmission Control
Relay Output circuit in the Transmission Control Relay connector in the PDC.
Ignition on, engine not running.
Measure the voltage of the TRS T1 Sense circuit.
Is the voltage above 0.5 volt?

All

Yes

→ Repair the TRS T1 Sense circuit for a short to voltage.

Perform 42RLE TRANSMISSION VERIFICATION TEST - VER
1.

→ Go To 19

Turn the ignition off to the lock position.
Disconnect the TRS harness connector.
Disconnect the TCM harness connector.
Note: Check connectors - Clean/repair as necessary.
Measure the resistance of the TRS T3 Sense circuit from the TCM harness connector
to the TRS harness connector.
Is the resistance above 5.0 ohms?

All

Yes

→ Repair the TRS T3 Sense circuit for an open.

Perform 42RLE TRANSMISSION VERIFICATION TEST - VER
1.

→ Go To 11

Turn the ignition off to the lock position.
Disconnect the TRS harness connector.
Disconnect the TCM harness connector.
Note: Check connectors - Clean/repair as necessary.
Measure the resistance between ground and the TRS T3 Sense circuit in the TCM
harness connector.
Is the resistance below 5.0 ohms?

All

Yes

→ Repair the TRS T3 Sense circuit for a short to ground.

Perform 42RLE TRANSMISSION VERIFICATION TEST - VER
1.

→ Go To 12

309

TRANSMISSION - 42RLE

P0706-CHECK SHIFTER SIGNAL —

Continued

TEST

ACTION

APPLICABILITY

Turn the ignition off to the lock position.
Disconnect the TRS harness connector.
Disconnect the TCM harness connector.
Remove the Transmission Control Relay from the PDC.
Note: Check connectors - Clean/repair as necessary.
Connect a jumper wire between the Fused B+ circuit and the Transmission Control
Relay Output circuit in the Transmission Control Relay connector in the PCM.
Ignition on, engine not running.
Measure the voltage of the TRS T3 Sense circuit.
Is the voltage above 0.5 volt?

All

Yes

→ Repair the TRS T3 Sense circuit for a short to voltage.

Perform 42RLE TRANSMISSION VERIFICATION TEST - VER
1.

→ Go To 19

Turn the ignition off to the lock position.
Disconnect the TRS harness connector.
Disconnect the TCM harness connector.
Note: Check connectors - Clean/repair as necessary.
Measure the resistance of the TRS T41 Sense circuit from the TCM connector to the
TRS connector.
Is the resistance above 5.0 ohms?

All

Yes

→ Repair the TRS T41 Sense circuit for an open.

Perform 42RLE TRANSMISSION VERIFICATION TEST - VER
1.

→ Go To 14

Turn the ignition off to the lock position.
Disconnect the TRS harness connector.
Disconnect the TCM harness connector.
Note: Check connectors - Clean/repair as necessary.
Measure the resistance between ground and the TRS T41 Sense circuit in the TCM
harness connector.
Is the resistance below 5.0 ohms?

All

Yes

→ Repair the TRS T41 Sense circuit for a short to ground.

Perform 42RLE TRANSMISSION VERIFICATION TEST - VER
1.

→ Go To 15

All

Yes

→ Repair the TRS T41 Sense circuit for a short to voltage.

Perform 42RLE TRANSMISSION VERIFICATION TEST - VER
1.

→ Go To 19

310

TRANSMISSION - 42RLE

P0706-CHECK SHIFTER SIGNAL —

Continued

TEST

ACTION

APPLICABILITY

Turn the ignition off to the lock position.
Disconnect the TRS harness connector.
Disconnect the TCM harness connector.
Note: Check connectors - Clean/repair as necessary.
Measure the resistance of the TRS T42 Sense circuit from the TCM harness
connector to the TRS harness connector.
Is the resistance above 5.0 ohms?

All

Yes

→ Repair the TRS T42 Sense circuit for an open.

Perform 42RLE TRANSMISSION VERIFICATION TEST - VER
1.

→ Go To 17

Turn the ignition off to the lock position.
Disconnect the TRS harness connector.
Disconnect the TCM harness connector.
Note: Check connectors - Clean/repair as necessary.
Measure the resistance between ground and the TRS T42 Sense circuit in the TCM
harness connector.
Is the resistance below 5.0 ohms?

All

Yes

→ Repair the TRS T42 Sense circuit for a short to ground.

Perform 42RLE TRANSMISSION VERIFICATION TEST - VER
1.

→ Go To 18

All

Yes

→ Repair the TRS T42 Sense circuit for a short to voltage.

Perform 42RLE TRANSMISSION VERIFICATION TEST - VER
1.

→ Go To 19

Using the schematics as a guide, inspect the wiring and connectors. Repair as
necessary. Pay particular attention to all power and ground circuits.
If there are no possible causes remaining, view repair.

All

Repair

Replace the Transmission Control Module per the Service Infor-
mation. WITH THE DRBIII

t PERFORM QUICK LEARN.

Perform 42RLE TRANSMISSION VERIFICATION TEST - VER
1.

311

TRANSMISSION - 42RLE

P0706-CHECK SHIFTER SIGNAL —

Continued

Symptom:

P0711-TRANSMISSION TEMPERATURE SENSOR PERFORMANCE

When Monitored and Set Condition:

P0711-TRANSMISSION TEMPERATURE SENSOR PERFORMANCE

When Monitored:

Continuously with the ignition on and engine running.

Set Condition:

This DTC will set when the desired transmission temperature does not

reach a normal operating temperature within a given time frame. Time is variable due to
ambient temperature. Approximate times are starting temperature to warm up time: (-40°
F / -40° C - 35 min) (-20° F / -28° C - 25 min) (20° F / -6.6° C - 20 min) (60° F / 15.5 ° C - 10
min)

POSSIBLE CAUSES

RELATED DTC’S PRESENT

TRANSMISSION TEMPERATURE SENSOR

TRANSMISSION CONTROL MODULE

INTERMITTENT WIRING AND CONNECTORS

TEST

ACTION

APPLICABILITY

NOTE: Low fluid level can be the cause of many Transmission problems. If
the fluid level is low, locate and repair the leak, then check and adjust the
fluid level per the Service Information.
NOTE: Always perform diagnostics with a fully charged battery to avoid
false symptoms.
With the DRBIII

t, read the engine DTC’s. Check and repair all engine DTC’s prior

to performing Transmission Symptom Diagnostics.
With the DRBIII

t, read Transmission DTC’s. Record all DTC’s and 1 Trip Failures.

NOTE: Diagnose 1 Trip Failures as a fully matured DTC.
Using the wiring diagram/schematic as a guide, inspect the wiring and connectors.
Repair as necessary.
Perform the Shift Lever Position Test. If the test does not pass, refer to Symptom test
for P0706 Check Shifter Signal.
For Gear Ratio DTC’s, check and record all CVI’s.
Most DTC’s set on start up but some must be set by driving the vehicle such that all
diagnostic monitors have run.
NOTE: Verify flash level of Transmission Control Module. Some problems
are corrected by software upgrades to the Transmission Control Module.
NOTE: Check for applicable TSB’s related to the symptom.
Perform this procedure prior to Symptom diagnosis.

All

Continue

Go To

312

TRANSMISSION - 42RLE

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