Diagnostic procedure

DTC P2229 - DIAGNOSTIC PROCEDURE

STEP	INSPECTION		ACTION
1	VERIFY FREEZE FRAME DATA HAS BEEN RECORDED Has FREEZE FRAME DATA been recorded?	Yes	Go to the next step.
1		No	Record FREEZE FRAME DATA on repair order, then go to the next step.
2	VERIFY RELATED REPAIR INFORMATION AVAILABILITY Check for related Service Bulletins and/or on line repair information availability. Is any related repair information available?	Yes	Perform repair or diagnosis, according to the available repair information. If the vehicle is not repaired, then go to the next step.
2		No	Go to the next step.
3	VERIFY CURRENT INPUT SIGNAL STATUS-IS CONCERN INTERMITTENT OR CONSTANT Connect the SST (104 Pin Breakout Box) to the PCM connector. (See PCM INSPECTION USING THE SST (104 PIN BREAKOUT BOX) ) Start engine. Measure voltage at breakout box terminal 37. Is voltage below 4.8 V?	Yes	Go to the next step.
3		No	Intermittent concern exists. Go to INTERMITTENT CONCERNS TROUBLESHOOTING procedure. (See INTERMITTENT CONCERN TROUBLESHOOTING .)
4	INSPECT CONNECTION OF EGR BOOST SENSOR CONNECTOR Turn the ignition switch off. Verify that the EGR boost sensor connector is connected securely. Is connection okay?	Yes	Go to the next step.
4		No	Reconnect the connector, then go to Step 10.
5	INSPECT POOR CONNECTION OF EGR BOOST SENSOR CONNECTOR Disconnect the EGR boost sensor connector. Check for poor connection (damaged, pulled-out pins, corrosion, etc.). Is there any malfunction?	Yes	Repair or replace suspected terminal, then go to Step 10.
5		No	Go to the next step.
6	VERIFY EGR BOOST SENSOR GROUND CIRCUIT FOR OPEN Check continuity between EGR boost sensor terminal A (harness-side) and body ground. Is there continuity?	Yes	Go to the next step.
6		No	Check for open circuit between PCM terminal 20 (harness-side) and EGR boost sensor terminal A (harness-side). Repair or replace suspected harness, then go to Step 20.
7	CHECK PCM CONNECTOR Disconnect PCM connector. Check for poor connection at terminal 20 (damaged, pulled-out pins, corrosion, etc.). Is there any malfunction?	Yes	Repair terminal, then go to Step 10.
7		No	Go to the next step.
8	VERIFY EGR BOOST SENSOR SIGNAL CIRCUIT FOR SHORT TO CONSTANT VOLTAGE CIRCUIT Check for continuity between EGR boost sensor terminal B and C (harness-side). Is there continuity?	Yes	Repair or replace suspected harness, then go to Step 10.
8		No	Go to the next step.
9	VERIFY EGR BOOST SENSOR SIGNAL CIRCUIT FOR OPEN Check continuity between EGR boost sensor terminal B (harness-side) and PCM terminal 37 (harness-side). Is there continuity?	Yes	Go to the next step.
9		No	Repair or replace suspected harness, then go to the next step.
10	VERIFY TROUBLESHOOTING OF DTC P2229 COMPLETED Make sure to reconnect all disconnected connectors. Turn key to ON (Engine off). Clear the DTC from the memory using the WDS or equivalent. Start engine. Make sure that IAT PID is above 10 °C {50 °F} Is same DTC present?	Yes	Replace PCM, then go to the next step.
10		No	Go to the next step.
11	VERIFY AFTER REPAIR PROCEDURE Perform the "After Repair Procedure". (See AFTER REPAIR PROCEDURE .) Are any DTCs present?	Yes	Go to the applicable DTC inspection. (See DTC TABLE .)
11		No	Troubleshooting completed.