Chrysler Crossfire. Manual - part 570

(P0410) SECONDARY AIR INJECTION SYSTEM (CONTINUED)

When Monitored and Set Condition

•

When Monitored: Once per driving cycle with the engine at idle, air conditioning is off, barometric pressure is
greater than 78 kPa (11 psi), engine coolant temperature is greater than 50°C (122°F) and no other DTC set.

•

Set Condition: When the test is enabled, the O2 Sensor must increase by at least 23% (rich).

POSSIBLE CAUSES

AIR PUMP VOLTAGE SUPPLY CIRCUIT OPEN

AIR PUMP VOLTAGE SUPPLY CIRCUIT SHORT TO GROUND

AIR PUMP GROUND CIRCUIT OPEN

CRACKING, MISSING, MISROUTED, OR PLUGGED VACUUM LINES.

AIR PUMP SWITCHOVER VALVES

AIR PUMP RELAY

AIR PUMP

POWERTRAIN CONTROL MODULE

For a complete Powertrain Control Module Circuit Diagram, (Refer to 9 - ENGINE - SCHEMATICS AND DIA-
GRAMS).

Diagnostic Test

PRE-DIAGNOSTIC CHECK OUT

Note: Always perform diagnostics with a fully charged battery.

Note: Check connectors — Clean/repair as necessary. Poor pin to
terminal connections can set DTCs.

Note: Check for applicable TSBs related to the problem.
Turn the ignition on.

With the DRB III

, read PCM DTCs.

Using the wiring diagram/schematic as a guide, inspect the wiring and
connectors. Repair as necessary.

Perform this procedure prior to symptom diagnosis.

Continue

Go To 2

ENGINE - ELECTRICAL DIAGNOSTICS

9 - 425

(P0410) SECONDARY AIR INJECTION SYSTEM (CONTINUED)

CHECK FOR CURRENT DTC

Note: If the PCM detects and stores a DTC, the PCM also stores
the engine/vehicle operating conditions under which the DTC was
set. Some of these conditions are displayed on the DRB III

at the

same time the DTC is displayed.

Note: Before erasing stored DTCs, record these conditions.
Attempting to duplicate these conditions may assist when check-
ing for a DTC.
Turn the ignition on.

With the DRB III

, erase PCM DTCs.

Note: It maybe necessary to road test the vehicle for this DTC to
set.
With the DRB III

, read PCM DTCs.

Did this DTC set again?

Yes

>> Go To 3

>> Go To 13

INSPECT THE SECONDARY AIR INJECTION SYSTEM

Turn the ignition off.

Inspect the Air Pump system for the following:

•

Damage to any component.

•

Cracked, missing, misrouted, or plugged vacuum lines.

•

Damaged or misrouted electrical wires.

Did you find any of the above conditions?

Yes

>> Repair as necessary.

Perform POWERTRAIN VERIFICATION TEST - VER 2.

>> Go To 4

OPERATE THE AIR PUMP

Turn the ignition on.

With the DRB III

, actuate the AIRPUMP SWITCHOVER.

Does the Air Pump run?

Yes

>> Go To 5

>> Go To 8

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ENGINE - ELECTRICAL DIAGNOSTICS

(P0410) SECONDARY AIR INJECTION SYSTEM (CONTINUED)

AIR PUMP SWITCHOVER VALVE VACUUM CHECK

Turn the ignition off.

Disconnect the vacuum hose from the right Air Pump Switchover
Valve.

Connect a vacuum gauge to the vacuum hose that was connected to
the right Air Pump Switchover Valve.

Start the engine.

With the DRB III

, actuate the AIRPUMP SWITCHOVER.

Repeat this procedure for the left Air Pump Switchover Valve.

Does the vacuum gauge read greater than 254 mm Hg (10 in.
Hg) for both valves?

Yes

>> Go To 6

>> Go To 7

MONITOR THE O2 SENSORS

Turn the ignition off.

Disconnect the Relay Control Module (RCM) A harness connector.

Connect a fused jumper wire between B+ and RCM A harness con-
nector cavity 1.

Start the engine.

With the DRB III

, monitor the 1/1 and 1/2 O2 SENSOR values.

Does the O2 sensor voltage for both sensors drop to less than
0.1 volt?

Yes

>> Go To 13

>> Remove the Air Pump Switchover Valve for the affected

bank and inspect for damage or restriction. If no restriction
or damage is found, replace the Air Pump Switchover
Valve. (Refer to 25 - EMISSIONS CONTROL/AIR INJECTION/SWITCHOVER VALVE - REMOVAL).

Perform POWERTRAIN VERIFICATION TEST - VER 2.

AIR PUMP SOLENOID VACUUM CHECK

Turn the ignition off.

Disconnect the Air Pump Solenoid vacuum feed hose from the intake manifold to the Air Pump Solenoid.

Connect a vacuum gauge to the vacuum hose that was connected to the Air Pump Solenoid.

Start the engine.

Does the vacuum gauge read greater than 254 mm Hg (10 in. Hg)?

Yes

>> Replace the Air Pump Switchover Solenoid. (Refer to 25 - EMISSIONS CONTROL/AIR INJECTION/

SWITCHOVER SOLENOID - REMOVAL)

Perform POWERTRAIN VERIFICATION TEST - VER 2.

>> Repair the cause of no vacuum to the Air Pump Solenoid.

Perform POWERTRAIN VERIFICATION TEST - VER 2.

ENGINE - ELECTRICAL DIAGNOSTICS

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(P0410) SECONDARY AIR INJECTION SYSTEM (CONTINUED)

DISCONNECT THE AIR PUMP

Turn the ignition off.

Disconnect the Air Pump harness connector.

Note: Check connectors — Clean/repair as necessary.
Turn the ignition on.

With the DRB III

, actuate the AIRPUMP SWITCHOVER.

Using a 12-Volt test light connected to ground, probe the Air Pump
Relay Output circuit at the Air Pump harness connector.

Note: The light should be bright. Compare to when connected
across the battery.

Does the test light illuminate brightly?

Yes

>> Go To 9

>> Go To 10

AIR PUMP GROUND CIRCUIT OPEN

Turn the ignition off.

Measure the resistance between ground and the Air Pump Ground cir-
cuit.

Is the resistance less than 5.0 ohms?

Yes

>> Replace the Air Pump. (Refer to 25 - EMISSIONS CON-

TROL/AIR INJECTION/PUMP - REMOVAL).

Perform POWERTRAIN VERIFICATION TEST - VER 2.

>> Repair the Air Pump Ground circuit for an open.

Perform POWERTRAIN VERIFICATION TEST - VER 2.

10.

INSPECT THE AIR PUMP FUSE

With the ignition on.

With a test light connected to ground, probe the 40 amp Air Pump
Fuse.

Note: The light should be bright. Compare to when connected
across the battery.

Does the test light illuminate brightly on at least one side of the
fuse?

Yes

>> Go To 11

>> Repair the Fused B(+) circuit to the 40 amp Air Pump

Fuse for an open.

Perform POWERTRAIN VERIFICATION TEST - VER 2.

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ENGINE - ELECTRICAL DIAGNOSTICS

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