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 .
CHECKING PCM CONTROL SIDE OF THE MDS SOLENOID (C100)
NOTE: The DTC must not be active for the actuator test to operate properly, clear all DTC before continuing.

Fig 1: CHECKING PCM CONTROL SIDE OF MDS SOLENOID
Courtesy of CHRYSLER LLC
1. Turn the ignition off.
2. Disconnect the C100 harness connector.
3. Using a 12-volt test light, jumper from the (Z904) Ground circuit and the (K454) MDS Solenoid No. 7 Control circuit in the C100 harness connector (PCM side).
4. Turn the ignition on.
5. Using the scan tool, actuate the MDS Solenoid No. 7.
  Does the 12-volt test light flash on and off?
  
  Yes
  - Go to step 3
  No
  - Go to step 6

MDS SOLENOID RESISTANCE

Fig 2: MEASURING 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 C100 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 9
No
- Go to step 4

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

CHECKING PCM CONTROL SIDE FOR THE MDS SOLENOID BETWEEN C100 and C101
NOTE: The DTC must not be active for the actuator test to operate properly, clear all DTC before continuing.

Fig 3: CHECKING PCM CONTROL SIDE FOR THE MDS SOLENOID BETWEEN CONNECTORS
Courtesy of CHRYSLER LLC
1. Turn the ignition off.
2. Reconnect the C100 harness connector.
3. Disconnect the C101 harness connector.
4. Using a 12-volt test light, jumper from the (Z904) Ground circuit and the (K454) MDS Solenoid No. 7 Control circuit in the C101 harness connector (PCM side).
5. Turn the ignition on.
6. Using the scan tool, actuate the MDS Solenoid No. 7.
  Does the 12-volt test light flash on and off?
  
  Yes
  - 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 .
  No
  - Go to step 5
(Z904) GROUND CIRCUIT OPEN BETWEEN C100 AND C101

Fig 4: CHECKING GROUND CIRCUIT FOR OPEN (PCM SIDE)
Courtesy of CHRYSLER LLC
1. Turn the ignition off.
2. Using a 12-volt test light connected to the 12-volts, probe the (Z904) Ground circuit in the C101 harness connector (PCM side).
  Does the test light illuminate brightly?
  
  Yes
  - Repair the (K454) MDS Solenoid No. 7 Control circuit between C100 and C101 connectors.
  - Perform the PCM VERIFICATION TEST. See DTC-Based Diagnostics/MODULE, Powertrain Control (PCM) - Standard Procedure .
  No
  - Repair the (Z904) Ground circuit between C100 and C101 connectors.
  - Perform the PCM VERIFICATION TEST. See DTC-Based Diagnostics/MODULE, Powertrain Control (PCM) - Standard Procedure .
(Z904) GROUND CIRCUIT OPEN (PCM SIDE)

Fig 5: CHECKING GROUND CIRCUIT FOR OPEN (PCM SIDE)
Courtesy of CHRYSLER LLC
1. Turn the ignition off.
2. Using a 12-volt test light connected to the 12-volts, probe the (Z904) Ground circuit in the C100 harness connector (PCM side).
  Does the test light illuminate brightly?
  
  Yes
  - Go to step 7
  No
  - Repair the open in the (Z904) Ground circuit.
  - Perform the PCM VERIFICATION TEST. See DTC-Based Diagnostics/MODULE, Powertrain Control (PCM) - Standard Procedure .
(K454) MDS SOLENOID NO. 7 CONTROL CIRCUIT SHORTED TO GROUND (PCM SIDE)

Fig 6: CHECKING MDS SOLENOID NO. 7 CONTROL CIRCUIT FOR SHORT TO GROUND (PCM SIDE)
Courtesy of CHRYSLER LLC
1. Turn the ignition off.
2. Measure the resistance between ground and the (K454) MDS Solenoid No. 7 Control circuit in the C100 harness connector.
  Is the resistance below 100 Ohms?
  
  Yes
  - Repair the short to ground in the (K454) MDS Solenoid No. 7 Control circuit between the PCM harness connector and the C100 harness connector.
  - Perform the PCM VERIFICATION TEST. See DTC-Based Diagnostics/MODULE, Powertrain Control (PCM) - Standard Procedure .
  No
  - Go to step 8
(K454) MDS SOLENOID NO. 7 CONTROL CIRCUIT OPEN (PCM SIDE)

Fig 7: CHECKING MDS SOLENOID NO. 7 CONTROL CIRCUIT FOR OPEN (PCM SIDE)
Courtesy of CHRYSLER LLC

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.
1. Measure the resistance of the (K454) MDS Solenoid No. 7 Control circuit from the C100 harness connector to the appropriate terminal of PCM Pinout Box 8815.
  Is the resistance below 5.0 Ohms?
  
  Yes
  - 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 .
  No
  - Repair the open in the (K454) MDS Solenoid No. 7 Control circuit between the C100 harness connector and the PCM harness connector.
  - Perform the PCM VERIFICATION TEST. See DTC-Based Diagnostics/MODULE, Powertrain Control (PCM) - Standard Procedure .
MDS SOLENOID 7

Fig 8: 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. Reconnect the PCM harness connector.
4. Turn the ignition on.
5. With the scan tool actuate the MDS Solenoid 7.
  Can you feel and hear the Solenoid Actuating?
  
  Yes
  - Go to step 10
  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 2 of the engine block.
3. Remove the Bank 2 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 .