Diagnostic Test

WARNING: This page is about a different car, the 2006 Dodge Magnum, 2006 Dodge Charger, and 2006 Chrysler 300. However, it is still accessible from the selected car via links, so may be relevant.

1) DTC STATUS IS ACTIVE
Turn the ignition on.

With the scan tool, select View DTCs in the Wireless Control Module (SKREEM).

Is the DTC status Active at this time?

Yes
1. Go to step 2.
No
1. Go to step 9).
2) (D508) TIRE PRESSURE BUS CIRCUIT SHORT TO VOLTAGE

Fig 1: Measuring Voltage Of Tire Pressure Bus Circuit
Courtesy of DAIMLERCHRYSLER CORP.

Turn the ignition off.

Disconnect the Tire Pressure Transponder Module harness connector.

Disconnect the Sentry Key Remote Entry Module harness connector.

Turn the ignition on.

Measure the voltage of the (D508) Tire Pressure Bus circuit.

Is there any voltage present?

Yes
1. Repair the (D508) Tire Pressure Bus circuit for a short to voltage.
2. Perform TPM VERIFICATION TEST (Refer to TIRES/WHEELS/TIRE PRESSURE MONITORING - DIAGNOSIS AND TESTING)
No
1. Go to step 3.
3) (D508) TIRE PRESSURE BUS CIRCUIT SHORT TO GROUND

Fig 2: Measuring Resistance Between Ground & Tire Pressure Bus Circuit
Courtesy of DAIMLERCHRYSLER CORP.

Turn the ignition off.

Measure the resistance between ground and the (D508) Tire Pressure Bus circuit.

Is the resistance below 5.0 ohms?

Yes
1. Repair the (D508) Tire Pressure Bus circuit for a short to ground.
2. Perform TPM VERIFICATION TEST (Refer to TIRES/WHEELS/TIRE PRESSURE MONITORING - DIAGNOSIS AND TESTING)
No
1. Go to step 4.
4) (D508) TIRE PRESSURE BUS CIRCUIT OPEN OR HIGH RESISTANCE

Fig 3: Measuring Resistance Of Tire Pressure Bus Circuit
Courtesy of DAIMLERCHRYSLER CORP.

Measure the resistance of the (D508) Tire Pressure Bus circuit.

Is the resistance above 5.0 ohms?

Yes
1. Repair the (D508) Tire Pressure Bus circuit for an open circuit or high resistance.
  Perform TPM VERIFICATION TEST (Refer to TIRES/WHEELS/TIRE PRESSURE MONITORING - DIAGNOSIS AND TESTING)
No
1. Go to step 5.
5) (F500) FUSED RUN RELAY OUTPUT CIRCUIT OPEN OR HIGH RESISTANCE

Fig 4: Checking Fused Run Relay Output Circuit
Courtesy of DAIMLERCHRYSLER CORP.

Turn the ignition on.

Using a 12-volt test light connect to ground, check the (F500) Fused Run Relay Output circuit.

NOTE: The test light should be illuminated and bright. Compare the brightness to that of a direct connection to the battery.

Is the test light illuminated and bright?

Yes
1. Go to step 6.
No
1. Repair the (F500) Fused Run Relay Output circuit for an open circuit or high resistance.
  Perform TPM VERIFICATION TEST (Refer to TIRES/WHEELS/TIRE PRESSURE MONITORING - DIAGNOSIS AND TESTING)
6) (Z901) GROUND CIRCUIT(S) OPEN OR HIGH RESISTANCE

Fig 5: Checking Each Ground Circuit
Courtesy of DAIMLERCHRYSLER CORP.

Using a 12-volt test light connect to 12 volts, check each of the (Z901) Ground circuit(s).

NOTE: The test light should be illuminated and bright. Compare the brightness to that of a direct connection to the battery.

Is the test light illuminated and bright?

Yes
1. Go to step 7.
No
1. Repair the (Z901) Ground circuit(s) for an open circuit or high resistance.
  Perform TPM VERIFICATION TEST (Refer to TIRES/WHEELS/TIRE PRESSURE MONITORING - DIAGNOSIS AND TESTING)
7) TIRE PRESSURE TRANSPONDER MODULE
Turn the ignition off.

Replace the appropriate Tire Pressure Transponder Module in accordance with the Service Information.

With the scan tool, clear DTCs in the Wireless Control Module (SKREEM).

Test Drive the vehicle for a minimum of 10 minutes with vehicle speed greater than 15 m.p.h.

With the scan tool, select View DTCs in the Wireless Control Module (SKREEM).

Does the DTC reset or is the status Active for this DTC?

Yes
1. Go to step 8.
No
1. Test Complete.
8) WIRELESS CONTROL MODULE (SKREEM)
View repair.

Repair
1. Replace the Wireless Control Module (SKREEM) in accordance with the Service Information.
  Perform TPM VERIFICATION TEST (Refer to TIRES/WHEELS/TIRE PRESSURE MONITORING - DIAGNOSIS AND TESTING)
9) INTERMITTENT TIRE PRESSURE TRANSPONDER MODULE DTC
The conditions necessary to set this DTC are not present at this time.

Using the wiring schematic as a guide, inspect the wiring and connectors relative to this circuit.

Refer to any Technical Service Bulletins that may apply to this condition.

With the scan tool, clear DTCs in the Wireless Control Module (SKREEM).

Test Drive the vehicle for a minimum of 10 minutes with vehicle speed greater than 15 m.p.h.

With the scan tool, select View DTCs in the Wireless Control Module (SKREEM).

Does the DTC reset or is the status Active for this DTC?

Yes
1. Return to the first step of this test and perform the diagnostic procedure.
  Perform TPM VERIFICATION TEST (Refer to TIRES/WHEELS/TIRE PRESSURE MONITORING - DIAGNOSIS AND TESTING)
No
1. Test complete.