Chrysler Voyager. Manual — part 103

TEST

ACTION

APPLICABILITY

3

Turn the ignition off.
Disconnect the Generator Field harness connector.
Disconnect the PCM harness connector.
Measure the voltage on the (K20) Gen Field Control circuit at the Generator Field
harness connector.
Is the voltage above 1.0 volt?

All

Yes

→ Repair the short to voltage in the (K20) Gen Field Control circuit.

Perform POWERTRAIN VERIFICATION TEST VER - 3 - NGC.

No

→ Go To 4

4

NOTE: Before continuing, check the PCM harness connector terminals for
corrosion, damage or terminal push out. Repair as necessary.
If there are no possible causes remaining, view repair.

All

Repair

Replace and program the Powertrain Control Module in accor-
dance with the Service Information.
Perform POWERTRAIN VERIFICATION TEST VER - 3 - NGC.

411

DRIVEABILITY - NGC

P0563-BATTERY VOLTAGE HIGH —

Continued

Symptom:

P0579-SPEED CONTROL SWITCH #1 PERFORMANCE

POSSIBLE CAUSES

SPEED CONTROL SWITCH STATUS

SPEED CONTROL SWITCHES

(V37) S/C SWITCH SIGNAL CIRCUIT SHORTED TO SENSOR GROUND

(V37) S/C SWITCH SIGNAL CIRCUIT SHORTED TO GROUND

(V37) S/C SWITCH SIGNAL CIRCUIT SHORTED TO BATTERY VOLTAGE

(V37) S/C SWITCH SIGNAL CIRCUIT OPEN

(K4) SENSOR GROUND OPEN

PCM

TEST

ACTION

APPLICABILITY

1

Ignition on, engine not running.
With the DRBIII

t, monitor each switch function for the Speed Control Switches.

Press and release each Speed Control Button.
- Resume/Accel
- Cancel
- Decel (Coast)
- On/Off
- Set
Does each switch function change status when pressing and then depressing each
switch?

All

Yes

→ Refer to the INTERMITTENT CONDITION symptom in the

Driveability category.
Perform POWERTRAIN VERIFICATION TEST VER - 4 - NGC.

No

→ Go To 2

2

Turn the ignition off.
Remove the Speed Control Switches from the steering wheel.
Measure the resistance across each Switch Control Switch.
Monitor the ohmmeter while pressing each function button on each switch.
Resume/Accel - 15,400 ohms
Cancel - 909 +/- 9 ohms
Decel (Coast) - 2940 +/- 30 ohms
On/Off - 0 ohms
Set - 6650 +/- 66 ohms
Does the function on the Speed Control Switches have the correct ohm value?

All

Yes

→ Go To 3

No

→ Replace the Speed Control Switch that had the incorrect resis-

tance value.
Perform POWERTRAIN VERIFICATION TEST VER - 4 - NGC.

412

DRIVEABILITY - NGC

TEST

ACTION

APPLICABILITY

3

Turn the ignition off.
Disconnect the Speed Control On/Off Switch harness connector.
Disconnect the Speed Control Resume/Accel Switch harness connector.
Disconnect the PCM harness connector.
Measure the resistance between the (V37) S/C Switch Signal circuit and the (K4)
Sensor ground circuit in the Speed Control harness connector.
Is the resistance below 5.0 ohms?

All

Yes

→ Repair the (V37) S/C Switch Signal circuit shorted to the (K4)

Sensor Ground circuit.
Perform POWERTRAIN VERIFICATION TEST VER - 4 - NGC.

No

→ Go To 4

4

Turn the ignition off.
Disconnect the Speed Control On/Off Switch harness connector.
Disconnect the Speed Control Resume/Accel Switch harness connector.
Disconnect the PCM harness connector.
Measure the voltage of the (V37) Speed Control Switch Signal circuit at the Speed
Control harness connector.
Is the is the voltage above 5.0 volts?

All

Yes

→ Repair the (V37) S/C Switch Signal circuit shorted to the battery

voltage.
Perform POWERTRAIN VERIFICATION TEST VER - 4 - NGC.

No

→ Go To 5

5

Turn the ignition off.
Disconnect the Speed Control On/Off Switch harness connector.
Disconnect the Speed Control Resume/Accel Switch harness connector.
Disconnect the PCM harness connector.
Measure the resistance between ground and the (V37) S/C Switch Signal circuit at
the Speed Control harness connector.
Is the resistance below 100 ohms?

All

Yes

→ Repair the (V37) Speed Control Switch Signal circuit shorted to

the ground.
Perform POWERTRAIN VERIFICATION TEST VER - 4 - NGC.

No

→ Go To 6

6

NOTE: The measurement must be taken from both Speed Control Switch
harness connectors.
Turn the ignition off.
Disconnect the Speed Control On/Off Switch harness connector.
Disconnect the Speed Control Resume/Accel Switch harness connector.
Disconnect the PCM harness connector.
CAUTION: DO NOT PROBE THE PCM HARNESS CONNECTORS. PROBING
THE PCM HARNESS CONNECTORS WILL DAMAGE THE PCM TERMI-
NALS RESULTING IN POOR TERMINAL TO PIN CONNECTION. INSTALL
MILLER SPECIAL TOOL #8815 TO PERFORM DIAGNOSIS.
Measure the resistance of the (V37) S/C Switch Signal circuit from the Speed Control
harness connector to the appropriate terminal of special tool #8815.
Is the resistance below 5.0 ohms for both measurements?

All

Yes

→ Go To 7

No

→ Repair the (V37) Speed Control Switch Signal circuit for an open.

Perform POWERTRAIN VERIFICATION TEST VER - 4 - NGC.

413

DRIVEABILITY - NGC

P0579-SPEED CONTROL SWITCH #1 PERFORMANCE —

Continued

TEST

ACTION

APPLICABILITY

7

NOTE: The measurement must be taken from both Speed Control Switch
harness connector.
Turn the ignition off.
Disconnect the Speed Control On/Off Switch harness connector.
Disconnect the Speed Control Resume/Accel Switch harness connector.
Disconnect the PCM harness connector.
CAUTION: DO NOT PROBE THE PCM HARNESS CONNECTORS. PROBING
THE PCM HARNESS CONNECTORS WILL DAMAGE THE PCM TERMI-
NALS RESULTING IN POOR TERMINAL TO PIN CONNECTION. INSTALL
MILLER SPECIAL TOOL #8815 TO PERFORM DIAGNOSIS.
Measure the resistance of the (K4) Sensor Ground circuit from the Speed Control
harness connector to the appropriate terminal of special tool #8815.
Is the resistance below 5.0 ohms for both measurement?

All

Yes

→ Go To 8

No

→ Repair the (K4) Sensor Ground circuit for an open.

Perform POWERTRAIN VERIFICATION TEST VER - 4 - NGC.

8

NOTE: Before continuing, check the PCM harness connector terminals for
corrosion, damage or terminal push out. Repair as necessary.
If there are no possible causes remaining, view repair.

All

Repair

Replace and program the Powertrain Control Module in accor-
dance with the Service Information.
Perform POWERTRAIN VERIFICATION TEST VER - 4 - NGC.

414

DRIVEABILITY - NGC

P0579-SPEED CONTROL SWITCH #1 PERFORMANCE —

Continued