Diagnostic Test

WARNING: This page is about a different variant/trim than selected.

ACTIVE DTC
NOTE:
Diagnose any Misfire DTCs before continuing.
1. Start the engine and allow it to reach normal operating temperature.
  WARNING:
  When the engine is operating, do not stand in direct line with the fan. Do not put your hands near the pulleys, belts or fan. Do not wear loose clothing. Failure to follow these instructions may result in possible serious or fatal injury.
  
  NOTE:
  It may be necessary to test drive the vehicle in order for this DTC to set.
2. With the scan tool, select View DTCs.
  Is the DTC Active at this time?
  
  Yes
  - Go To 2.
  No
  - Refer to STANDARD PROCEDURE and perform the INTERMITTENT CONDITION diagnostic procedure.
(K452) MDS SOLENOID NO. 4 CONTROL CIRCUIT SHORTED TO VOLTAGE

Fig 1: Checking MDS Solenoid No. 4 Control Circuit For Short To Voltage
Courtesy of CHRYSLER GROUP, LLC
1. Turn the ignition off.
2. Disconnect the C3 PCM harness connector.
3. Disconnect the MDS In-line 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 (special tool #8815A, Kit, NGC, 38 Position) to perform diagnosis.
4. Turn the ignition on.
5. Measure the voltage on (K452) MDS Solenoid No. 4 Control circuit in the appropriate terminal of PCM Pinout Box (special tool #8815A, Kit, NGC, 38 Position).
  Is there any voltage present?
  
  Yes
  - Repair the short to voltage in the (K452) MDS Solenoid No. 4 Control circuit.
  - Refer to STANDARD PROCEDURE and perform the POWERTRAIN VERIFICATION TEST.
  No
  - Go To 3.

MDS SOLENOID RESISTANCE

Fig 2: Checking MDS Solenoid No. 4 Control Circuit Resistance

Courtesy of CHRYSLER GROUP, LLC

Turn the ignition off.
Reconnect the MDS In-line harness connector.

Measure the resistance between Ground and the (K452) MDS Solenoid No. 4 Control Circuit in the appropriate terminal of PCM Pinout Box (special tool #8815A, Kit, NGC, 38 Position).

NOTE:

It is important to follow the below temp/resistance values to ensure an accurate reading.

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

Is the resistance within an acceptable range?

Yes

Go To 4.

Visually and Physically inspect the wiring harness between the MDS In-line connector and the MDS Solenoid connector. Repair as necessary. If OK, replace the MDS Solenoid in accordance with the Service Information.

PCM CONTROL

Fig 3: Checking MDS Solenoid No. 1 Control Circuit
Courtesy of CHRYSLER GROUP, LLC
1. Turn the ignition off.
2. Reconnect the C3 Powertrain Control Module (PCM) harness connector.
3. Disconnect the MDS In-line harness connector.
4. Ignition on, engine not running.
5. Using a 12-volt test light connected to the (Z903) Ground circuit, probe the (K452) MDS Solenoid No. 4 Control circuit in the MDS In-line harness connector (PCM side).
6. With the scan tool, actuate the MDS Solenoid.
  NOTE:
  The test light should be illuminated and bright proportional to the maximum duty cycle allowed by the scan tool. For example, if the scan tool allows 100% actuation, the brightness should be as bright as a direct connection to the battery. If the scan tool allows a maximum 25% actuation, the brightness should be 25% as bright as a direct connection to the battery.
  
  Does the test light illuminate accordingly during the actuation?
  
  Yes
  - Go To 5.
  No
  - Replace and program the Powertrain Control Module in accordance with the Service Information. Refer to MODULE, POWERTRAIN CONTROL, REMOVAL .
  - Refer to STANDARD PROCEDURE and perform the POWERTRAIN VERIFICATION TEST.
MDS SOLENOID 4

Fig 4: View Of MDS Solenoids
Courtesy of CHRYSLER GROUP, LLC
1. Turn the ignition off.
2. Remove the Intake Manifold in accordance with the Service Information. Refer to MANIFOLD, INTAKE, REMOVAL .
3. Reconnect the Solenoid harness connector.
4. Turn the ignition on.
5. With the scan tool actuate the MDS Solenoid 4.
  Can you feel and hear the Solenoid Actuating?
  
  Yes
  - Go To 6.
  No
  - Remove the Solenoid and check for any debris that may be blocking the oil passages to the Solenoid. If the passages are clogged, clean the passages and replace the MDS Solenoid 4. If the passages are not clogged with debris, replace the MDS Solenoid 4. Refer to SOLENOID, MULTIPLE DISPLACEMENT [ESG], REMOVAL .
  - Refer to STANDARD PROCEDURE and perform the POWERTRAIN VERIFICATION TEST.
OIL PASSAGES RESTRICTED
1. Turn the ignition off.
2. Remove both Solenoids on Bank 2 of the engine block. Refer to SOLENOID, MULTIPLE DISPLACEMENT [ESG], REMOVAL .
3. Remove the Bank 2 Cylinder Head in accordance with the Service Information. Refer to CYLINDER HEAD, REMOVAL .
4. Remove the Lifters from the right engine bank. Refer to LIFTER(S), HYDRAULIC, ROLLER, REMOVAL .
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. Refer to DIAGNOSIS AND TESTING .
  - Refer to STANDARD PROCEDURE and perform the POWERTRAIN VERIFICATION TEST.
  No
  - Replace both sets of lifters if no other possible causes remain. Refer to LIFTER(S), HYDRAULIC, ROLLER, REMOVAL .
  - Refer to STANDARD PROCEDURE and perform the POWERTRAIN VERIFICATION TEST.