Dodge Nitro. Manual — part 151

Disconnect the Brake Fluid Level Switch harness connector.

Reconnect the TIPM harness connector.

Measure the resistance of the (Z905) Brake Fluid Level Switch ground circuit between the Brake Fluid
Level Switch harness connector and ground.

Is the resistance below 5.0 ohms?

Yes

Replace and program the Totally Integrated Power Module in accordance with the Service
Information.

Perform ABS VERIFICATION TEST.

No

Repair the open or high resistance in the (Z905) Sensor ground circuit.

Perform POWERTRAIN VERIFICATION TEST .

C100A-LEFT FRONT WHEEL SPEED SENSOR CIRCUIT

2007 Dodge Nitro R/T

2007 BRAKES ABS - Electrical Diagnostics - Nitro

Fig. 5: Wheel Speed Sensor Circuit Schematic
Courtesy of CHRYSLER LLC

For complete wiring diagrams refer to SYSTEM WIRING DIAGRAMS article.

When Monitored:

2007 Dodge Nitro R/T

2007 BRAKES ABS - Electrical Diagnostics - Nitro

With the ignition on.

Set Condition:

When the Left Front Wheel Speed Sensor (WSS) circuit fails the diagnostic test.

Diagnostic Test

1) CHECK FOR DTC C100A-LEFT FRONT WHEEL SPEED SENSOR CIRCUIT

Turn the ignition on.

With the scan tool, record and erase DTCs.

Cycle the ignition switch from off to on.

With the scan tool, read DTCs.

Does the scan tool display: C100A-LEFT FRONT WHEEL SPEED SENSOR CIRCUIT?

Yes

Go to 2).

No

The condition that caused the symptom is currently not present. Inspect the related wiring for a
possible intermittent condition. Look for any chafed, pierced, pinched, or partially broken wires.

Refer to the ABS INTERMITTENT CONDITION.

2) CHECK CONNECTOR/TERMINAL FOR DAMAGE

Possible Causes

WIRING HARNESS, TERMINAL, CONNECTOR DAMAGE
(B9) LEFT FRONT WSS 12 VOLT SUPPLY CIRCUIT SHORTED TO VOLTAGE, GROUND, OR
OPEN
(B8) LEFT FRONT WSS SIGNAL CIRCUIT SHORTED TO VOLTAGE, GROUND, OR OPEN
(B8) LEFT FRONT WSS SIGNAL CIRCUIT SHORTED TO (B9) LEFT FRONT WSS 12 VOLT
SUPPLY CIRCUIT
LEFT FRONT WSS
ANTI-LOCK BRAKES MODULE

NOTE:

This DTC must be active for the results of this test to be valid.

NOTE:

Check all terminals for broken, bent, pushed out, or corroded terminals.

2007 Dodge Nitro R/T

2007 BRAKES ABS - Electrical Diagnostics - Nitro

Turn the ignition off.

Inspect the Anti-Lock Brake Module harness connector, Left Front WSS, and Left Front WSS harness
connector.

Is the Left Front WSS or any of the connectors/terminals damaged?

Yes

Repair as necessary.

Perform ABS VERIFICATION TEST.

No

Go to 3).

3) CHECK (B9) LEFT FRONT WSS 12 VOLT SUPPLY CIRCUIT VOLTAGE

2007 Dodge Nitro R/T

2007 BRAKES ABS - Electrical Diagnostics - Nitro