Jeep Wrangler TJ 2006 Diagnostic Manual page 161

*AXLE LOCK INDICATOR PROBLEMS —
TEST
4 Place the transfer case in 4WD Lo.
Drive the vehicle at less than 2.5 MPH (4 km/h).
With the DRBIII in Inputs/Outputs, read the Enable 1 state, (should read LOW).
With the DRBIII in Inputs/Outputs, read the Rear Lock Request state.
Press the Axle Lock switch once.
Did the Rear Lock Request change state?
Yes → Replace and configure the Instrument Cluster in accordance with
→ Go To 5
No
5 Turn the ignition off.
Disconnect the Axle Lock Switch harness connector.
Measure the voltage between the Fused B(+) circuit and ground.
Is the voltage below 10.5 volts?
Yes → Repair the Axle Locker Switch Fused B(+) circuit for an open.
→ Go To 6
No
6 Turn the ignition off.
Disconnect the Axle Lock Switch harness connector.
Measure the resistance between ground and the Axle Locker Switch Ground circuit.
Is the resistance above 5.0 ohms?
Yes → Repair the Axle Locker Switch Ground circuit for an open.
→ Go To 7
No
7 Turn the ignition off.
Disconnect the Axle Locker Switch harness connector.
Disconnect the Instrument Cluster C1 harness connector.
Measure the resistance of the Rear Locker Request circuit between the Axle Locker
Switch connector and the Instrument Cluster C1 connector.
Is the resistance above 5.0 ohms?
Yes → Repair the Rear Locker Request circuit for an open.
→ Replace the Axle Lock Switch in accordance with the Service
No
ACTION
the Service Information.
Perform BODY VERIFICATION TEST - VER 1.
Perform BODY VERIFICATION TEST - VER 1.
Perform BODY VERIFICATION TEST - VER 1.
Perform BODY VERIFICATION TEST - VER 1.
Information.
Perform BODY VERIFICATION TEST - VER 1.
INSTRUMENT CLUSTER
Continued
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APPLICABILITY
All
All
All
All