Chrysler Voyager. Manual — part 117

Symptom:

*CHECKING PCM POWER AND GROUND CIRCUITS

POSSIBLE CAUSES

(A14) PCM FUSED B+ CIRCUIT

(A41) PCM FUSED IGNITION SWITCH OUTPUT CIRCUIT

(Z12) PCM GROUND CIRCUITS

TEST

ACTION

APPLICABILITY

1

NOTE: The battery must be fully charged before continuing.
Turn the ignition off.
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.
Using a 12-volt test light connected to ground, probe the (A14) PCM Fused B+ circuit
in the Pinout Box.
Does the test light illuminate brightly?

All

Yes

→ Go To 2

No

→ Repair the (A14) Fused B+ circuit.

Perform POWERTRAIN VERIFICATION TEST VER - 1 - NGC.

2

Turn the ignition off.
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.
Turn the ignition on.
Using a 12-volt test light connected to ground, probe the (A41) PCM Fused Ignition
Switch Output circuit in the Pinout Box.
Does the test light illuminate brightly?

All

Yes

→ Go To 3

No

→ Repair the (A41) Ignition Switch Output circuit

Perform POWERTRAIN VERIFICATION TEST VER - 1 - NGC.

3

Turn the ignition off.
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.
Using a 12-volt test light connected to battery voltage, probe the (Z12) PCM ground
circuits in the Pinout Box.
Does the test light illuminate brightly?

All

Yes

→ Test Complete.

No

→ Repair the (Z12) PCM ground circuits.

Perform POWERTRAIN VERIFICATION TEST VER - 1 - NGC.

467

DRIVEABILITY - NGC

Symptom:

*CHECKING THE A/C RELAY OUTPUT

POSSIBLE CAUSES

A/C CLUTCH RELAY OPERATION

GROUND CIRCUIT OPEN

A/C CLUTCH

(A17) FUSED B+ CIRCUIT

(C3) A/C CLUTCH OUTPUT CIRCUIT

A/C CLUTCH RELAY

TEST

ACTION

APPLICABILITY

1

NOTE: Ensure that the refrigerant system is properly charged. Refer to the
appropriate Service Information.
Turn the ignition on.
With the DRBIII

t, actuate the A/C Clutch Relay.

Is the A/C Clutch actuating?

All

Yes

→ The A/C Clutch System operating properly at this time.

Perform POWERTRAIN VERIFICATION TEST VER - 2 - NGC.

No

→ Go To 2

2

Turn the ignition off.
Disconnect the A/C Clutch harness connector.
Measure the Ground circuit in the A/C Clutch harness connector to ground.
Is the resistance below 5.0 ohms?

All

Yes

→ Go To 3

No

→ Repair the Ground circuit for an open.

Perform POWERTRAIN VERIFICATION TEST VER - 2 - NGC.

3

Disconnect the A/C Clutch harness connector.
Turn the ignition on.
With the DRBIII

t, actuate the A/C Clutch Relay.

Measure the voltage of the A/C Clutch Relay Output circuit in the A/C Clutch harness
connector.
Is the voltage above 11.0 volts?

All

Yes

→ Replace the A/C Clutch.

Perform POWERTRAIN VERIFICATION TEST VER - 2 - NGC.

No

→ Go To 4

4

Turn the ignition off.
Remove the A/C Clutch Relay from the PDC.
Using a 12-volt test light connected to ground, probe the (A17) Fused B+ circuit in the
PDC.
Does the test light illuminate brightly?

All

Yes

→ Go To 5

No

→ Repair the (A17) Fused B+ circuit. Inspect fuses and replace as

necessary.
Perform POWERTRAIN VERIFICATION TEST VER - 2 - NGC.

468

DRIVEABILITY - NGC

TEST

ACTION

APPLICABILITY

5

Turn the ignition off.
Disconnect the A/C Clutch Relay from the PDC.
Disconnect the A/C Clutch harness connector.
Measure the resistance of the (C3) A/C Clutch Relay Output circuit between the PDC
and the A/C Clutch harness connector.
Is the resistance below 5.0 ohms?

All

Yes

→ Replace the A/C Clutch Relay.

Perform POWERTRAIN VERIFICATION TEST VER - 2 - NGC.

No

→ Repair the (C3) A/C Clutch Relay Output circuit for an open.

Perform POWERTRAIN VERIFICATION TEST VER - 2 - NGC.

469

DRIVEABILITY - NGC

*CHECKING THE A/C RELAY OUTPUT —

Continued

Symptom List:

ANTENNA FAILURE
COP FAILURE
EEPROM FAILURE
INTERNAL FAULT
RAM FAILURE
SERIAL LINK INTERNAL FAULT
STACK OVERFLOW FAILURE

Test Note:

All symptoms listed above are diagnosed using the same tests.

The title for the tests will be ANTENNA FAILURE.

When Monitored and Set Condition:

ANTENNA FAILURE

When Monitored:

Every 250 milliseconds with the ignition on.

Set Condition:

The SKIM’s microcontroller determines that an antenna circuit fault has

occurred for 2.0 consecutive seconds.

COP FAILURE

When Monitored:

With the ignition on.

Set Condition:

The COP timer is not reset by the micro controller every 65.5 milliseconds.

EEPROM FAILURE

When Monitored:

With the ignition on.

Set Condition:

When the value written to EEPROM memory does not equal the value

read back after the write operation.

INTERNAL FAULT

When Monitored:

With the ignition on.

Set Condition:

The SKIM has detected a fault during an internal self test.

RAM FAILURE

When Monitored:

With the ignition on.

Set Condition:

The RAM fails a test that checks the RAM’s ability to retain memory.

SERIAL LINK INTERNAL FAULT

When Monitored:

With the ignition on.

Set Condition:

The SKIM fails an internal J1850 communication self test.

STACK OVERFLOW FAILURE

When Monitored:

With the ignition on.

Set Condition:

The micro controller has exceeded its stack space limit.

470

SENTRY KEY IMMOBILIZER