Diagnostic Test

WARNING: This page is about a different car, the 2010 Dodge Charger and 2010 Chrysler 300. However, it is still accessible from the selected car via links, so may be relevant.

ACTIVE DIAGNOSTIC TROUBLE CODE (DTC)
NOTE: Diagnose any Misfire DTCs before continuing.
1. Ignition on, engine not running.
2. With a scan tool, read the DTCs.
  Is the DTC active at this time?
  
  Yes
  - Go to step 2
  No
  - Perform the CHECKING FOR AN INTERMITTENT DTC diagnostic procedure. See DTC-Based Diagnostics/MODULE, Powertrain Control (PCM) - Standard Procedure .
(K454) MDS SOLENOID NO. 7 CONTROL CIRCUIT SHORTED TO VOLTAGE

Fig 1: CHECKING MDS SOLENOID No. 7 CONTROL CIRCUIT FOR SHORT TO VOLTAGE
Courtesy of CHRYSLER LLC
1. Turn the ignition off.
2. Disconnect the PCM C3 harness connector.
3. Disconnect the C101 harness connector.
  CAUTION: Do not probe the PCM harness connectors. Probing the PCM harness connectors will damage the PCM terminals resulting in poor terminal to pin connection. Install the PCM Pinout Box 8815 to perform diagnosis.
4. Turn the ignition on.
5. Measure the voltage on (K454) MDS Solenoid No. 7 Control circuit in the appropriate terminal of PCM Pinout Box 8815.
  Is voltage present?
  
  Yes
  - Repair the short to voltage in the (K454) MDS Solenoid No. 7 Control circuit.
  - Perform the PCM VERIFICATION TEST. See DTC-Based Diagnostics/MODULE, Powertrain Control (PCM) - Standard Procedure .
  No
  - Go to step 3

MDS SOLENOID RESISTANCE

Fig 2: CHECKING MDS SOLENOID RESISTANCE

Courtesy of CHRYSLER LLC

Turn the ignition off.
Measure the resistance between the (Z904) Ground Circuit and the (K454) MDS Solenoid No. 7 Control Circuit in the C101 harness connector (MDS Side).
NOTE: It is important to follow the below temp/resistance values to ensure an accurate reading.

Is the resistance within an acceptable range?

Yes
- Go to step 4
No
- Visually and Physically inspect the wiring harness between the C101 connector and the MDS Solenoid connector. Repair as necessary. If OK, replace the MDS Solenoid in accordance with the Service Information.
- Perform the PCM VERIFICATION TEST. See DTC-Based Diagnostics/MODULE, Powertrain Control (PCM) - Standard Procedure .

MDS SOLENOID RESISTANCE
TEMPERATURE VALUE	RESISTANCE - MINIMUM	RESISTANCE - MAXIMUM
-18° C (0° F)	7.22 Ω	8.12 Ω
0° C (32° F)	7.92 Ω	8.82 Ω
20° C (68° F)	8.72 Ω	9.62 Ω
38° C (100° F)	9.42 Ω	10.32 Ω
66° C (150° F)	10.62 Ω	11.52 Ω
93° C (200° F)	11.82 Ω	12.72 Ω
121° C (250° F)	12.82 Ω	13.72 Ω
149° C (300° F)	14.02 Ω	14.92 Ω

POWERTRAIN CONTROL MODULE (PCM) CONTROL

Fig 3: Checking PCM Control Circuit For MDS Solenoid No. 7
Courtesy of CHRYSLER LLC

NOTE: The DTC must not be active for the actuator test to operate properly, clear all DTC before continuing.
1. Turn the ignition off.
2. Reconnect the PCM C3 harness connector.
3. Disconnect the C100 harness connector.
4. Ignition on, engine not running.
5. Using a 12-volt test light connected to the (Z904) Ground circuit, probe the (K454) MDS Solenoid No. 7 Control circuit in the C100 harness connector.
6. With a scan tool, actuate the MDS Solenoid.
  Does the 12-volt test light flash on and off?
  
  Yes
  - Go to step 5
  No
  - Replace and program the Powertrain Control Module in accordance with the Service Information.
  - Perform the PCM VERIFICATION TEST. See DTC-Based Diagnostics/MODULE, Powertrain Control (PCM) - Standard Procedure .
MDS SOLENOID 7

Fig 4: View Of MDS Solenoids
Courtesy of CHRYSLER LLC
1. Turn the ignition off.
2. Remove the Intake Manifold in accordance with the service information.
3. Turn the ignition on.
4. With the scan tool actuate the MDS Solenoid 1.
  Can you feel and hear the Solenoid Actuating?
  
  Yes
  - Go to step 6
  No
  - Remove the Solenoid (1) and check for any debris that may be blocking the oil passages (3) to the Solenoid. If the passages are clogged, clean the passages and replace the MDS Solenoid 7. If the passages are not clogged with debris, replace the MDS Solenoid 7.
  - Perform the PCM VERIFICATION TEST. See DTC-Based Diagnostics/MODULE, Powertrain Control (PCM) - Standard Procedure .
OIL PASSAGES RESTRICTED
1. Turn the ignition off.
2. Remove both Solenoids on Bank 1 of the engine block.
3. Remove the Bank 7 Cylinder Head in accordance with the service information.
4. Remove the Lifters from the right engine bank.
5. Inspect the oil passages to the Solenoids and from the Solenoids to the lifters.
  Are the passages blocked?
  
  Yes
  - Clean the oil passages as necessary. If the entire engine is restricted disassembly of the entire engine block may be necessary.
  - Perform the PCM VERIFICATION TEST. See DTC-Based Diagnostics/MODULE, Powertrain Control (PCM) - Standard Procedure .
  No
  - Replace both sets of lifters if no other possible causes remain.
  - Perform the PCM VERIFICATION TEST. See DTC-Based Diagnostics/MODULE, Powertrain Control (PCM) - Standard Procedure .