Dodge Caliber. Manual - part 684

•

When Monitored:
With the engine running and battery voltage greater than 10.4 volts.

•

Set Condition:
The PCM detects that the actual state of the Camshaft 1/2 Position Solenoid does not match the intended
state.

Possible Causes

INTERMITTENT DTC

(K343) FUSED MAIN RELAY OUTPUT CIRCUIT OPEN OR HIGH RESISTANCE

(K276) CMP 1/2 CONTROL CIRCUIT OPEN OR HIGH RESISTANCE

CAMSHAFT 1/2 POSITION SOLENOID

POWERTRAIN CONTROL MODULE (PCM)

Always perform the Pre-Diagnostic Troubleshooting procedure before proceeding. (Refer to 9 - ENGINE -
DIAGNOSIS AND TESTING)

Diagnostic Test

DTC IS ACTIVE

Ignition on, engine not running.

With the scan tool, Clear DTCs in the Powertrain Control Module (PCM).

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 can result in
personal injury or death.
With the scan tool, select View DTCs.

Is the status Active for this DTC?

Yes

>> Go to 2

>> Refer to the *CHECKING FOR AN INTERMITTENT DTC Diagnostic Procedure. (Refer to 9 - ENGINE -

DIAGNOSIS AND TESTING)

(K343) FUSED MAIN RELAY OUTPUT CIRCUIT OPEN OR HIGH RESISTANCE

Turn the ignition off.

Disconnect the Camshaft 1/2 Position Solenoid connector.

Turn the ignition on.

Using a 12 volt test light connected to ground, check the (K343) Fused
Main Relay Output circuit in the Camshaft 1/2 Position Solenoid har-
ness connector.

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

>> Go to 3

>> Repair the (K343) Fused Main Relay Output circuit for an

open circuit or high resistance.

Perform the PCM Verification Test Ver. 1 (Refer to 9 - ENGINE - DIAGNOSIS AND TESTING).

ENGINE ELECTRICAL DIAGNOSTICS - GPEC

9 - 23

(K276) CMP 1/2 CONTROL CIRCUIT OPEN OR HIGH RESISTANCE

Turn the ignition off.

Disconnect the Powertrain Control Module (PCM) connector.

Measure the resistance of the (K276) CMP 1/2 Control circuit between
the Camshaft 1/2 Position Solenoid harness connector and the Power-
train Control Module (PCM) harness connector.

Is the resistance below 5.0 ohms?

Yes

>> Go to 4

>> Repair the (K276) CMP 1/2 Control circuit for an open cir-

cuit or high resistance.

Perform the PCM Verification Test Ver. 1 (Refer to 9 -
ENGINE - DIAGNOSIS AND TESTING).

CAMSHAFT 1/2 POSITION SOLENOID

Connect the Powertrain Control Module (PCM) connector.

Turn the ignition on.

With the scan tool, actuate the Camshaft 1/2 Position Solenoid control to the ON (100%) position.

Using a 12 volt test light connected to 12 volts, check the (K276) CMP 1/2 Control circuit in the Camshaft 1/2
Position Solenoid harness connector.

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

Is the test light illuminated and bright?

Yes

>> Replace the Camshaft 1/2 Position Solenoid in accordance with the Service Information.

Perform the PCM Verification Test Ver. 1 (Refer to 9 - ENGINE - DIAGNOSIS AND TESTING).

>> Go to 5

POWERTRAIN CONTROL MODULE (PCM)

Using the wiring diagram/schematic as a guide, inspect the wiring and connectors between the Camshaft 1/2 Posi-
tion Solenoid and the Powertrain Control Module (PCM).

Look for any chafed, pierced, pinched, or partially broken wires.

Look for broken, bent, pushed out or corroded terminals.

Refer to any Technical Service Bulletins that may apply.

Were any problems found?

Yes

>> Repair as necessary.

Perform the PCM Verification Test Ver. 1 (Refer to 9 - ENGINE - DIAGNOSIS AND TESTING).

>> Replace and program the Powertrain Control Module (PCM) in accordance with the Service Information.

Perform the PCM Verification Test Ver. 1 (Refer to 9 - ENGINE - DIAGNOSIS AND TESTING).

9 - 24

ENGINE ELECTRICAL DIAGNOSTICS - GPEC

P0014-BANK 1 CAMSHAFT 2 POSITION TARGET PERFORMANCE

For a complete wiring diagram Refer to Section 8W

ENGINE ELECTRICAL DIAGNOSTICS - GPEC

9 - 25

•

When Monitored:
Variable Valve Timing (VVT) rationality is monitored under the following conditions: (1) Cam phasing is com-
manded off of the default (lockpin) position; (2) Oil temperature is between 15° F and 280° F (-9°C to 138°C);
(3) Battery voltage is greater than 10 volts; (3) Engine speed is at least 1000 to 1400 rpm, depending on oil
temperature; (4) No CMP sensor, CKP sensor, or OBDI plausibility errors. Before VVT can be enabled, refer-
ence adaptation must be completed.

•

Set Condition:
The actual camshaft phasing setpoint does not match the desired camshaft phasing setpoint.

Possible Causes

INTERMITTENT DTC

ENGINE OIL DIRTY OR CONTAMINATED

INCORRECT ENGINE OIL VISCOSITY

(K343) FUSED MAIN RELAY OUTPUT CIRCUIT HIGH RESISTANCE

(K276) CMP 1/2 CONTROL CIRCUIT HIGH RESISTANCE

CAMSHAFT 1/2 POSITION SOLENOID

CAMSHAFT PHASER

Always perform the Pre-Diagnostic Troubleshooting procedure before proceeding. (Refer to 9 - ENGINE -
DIAGNOSIS AND TESTING)

Theory of Operation

Dual Variable Valve Timing (VVT) allows the PCM to monitor and adjust the position of each camshaft, based on
desired torque levels and engine operating conditions. The PCM controls two solenoid operated control valves, one
for each camshaft, that are used to direct oil pressure to hydraulic actuators mounted between each camshaft and
its driving sprocket. The oil pressure alters the angular position or phasing of each camshaft relative to crankshaft
rotation. A sensor is used to monitor the position of each camshaft.

Diagnostic Test

DTC IS ACTIVE

NOTE: Diagnose and repair any system voltage DTCs before continuing with this test.

NOTE: Diagnose and repair any CMP sensor or CKP sensor DTCs before continuing with this test.

NOTE: Diagnose and repair any oil pressure or oil pressure sensor DTCs before continuing with this test.
Start the engine and allow it to reach normal operating temperature.

Test drive the vehicle under the conditions in which the DTC is monitored, as outlined above.

With the scan tool, select View DTCs.

Is the status Active for this DTC?

Yes

>> Go to 2

>> Refer to the *CHECKING FOR AN INTERMITTENT DTC Diagnostic Procedure. (Refer to 9 - ENGINE -

DIAGNOSIS AND TESTING)

9 - 26

ENGINE ELECTRICAL DIAGNOSTICS - GPEC

Content .. 682 683 684 685 ..