340
SYMPTOM
P0340-CAMSHAFT POSITION SENSOR CIRCUIT
WHEN MONITORED
Engine cranking/running. Battery voltage greater than 10 volts.
SET CONDITION
At least 5 seconds or 2.5 engine revolutions have elapsed with crankshaft position sensor signals present but no camshaft position sensor signal. One Trip Fault.
POSSIBLE CAUSES
†Intermittent crankshaft position sensor signal
†Intermittent camshaft position sensor signal
†(K6) 5 Volt supply circuit shorted to ground
†(K6) 5 Volt supply circuit open
†(K6) 5 Volt supply circuit shorted to voltage
†(K44) CMP signal circuit shorted ground
†(K44) CMP signal circuit open
†(K44) CMP signal circuit shorted to voltage
†(K44) CMP signal shorted to (K6) 5 Volt supply circuit
†(K4) sensor ground circuit open
†PCM - (K6) 5 Volt supply
†PCM - (K44) CMP signal
†Camshaft position sensor
SYMPTOM
P0335-CRANKSHAFT POSITION SENSOR CIRCUIT
WHEN MONITORED
Engine cranking.
SET CONDITION
No CKP signal is present during engine cranking, and at least 8 camshaft position sensor signals have occurred.
POSSIBLE CAUSES
†Checking intermittent CMP signal with lab
†Intermittent CKP signal
†(K6) 5 Volt supply circuit shorted to ground
†(K6) 5 Volt supply circuit open
†(K6) 5 Volt supply circuit shorted to voltage
†(K24) CKP signal circuit shorted ground
†(K24) CKP signal circuit open
†(K24) CKP signal circuit shorted to voltage
†(K24) CKP signal shorted to (K6) 5 Volt supply circuit
†(K4) sensor ground circuit open
†PCM - (K6) 5 Volt supply
†PCM - (K24) CKP signal
†Crankshaft position sensor
706 is a trans code
1604SYMPTOM
P1604-PCM INTERNAL DUAL-PORT RAM READ/WRITE INTEGRITY FAILURE
TEST NOTE
This symptom is diagnosed using the test P1603-PCM INTERNAL DUAL-PORT RAM COMMUNICATION.
POSSIBLE CAUSES
†Fused ignition switch output (off-run-start)
†PCM internal failure
441 is an evap code
SYMPTOM
P0441-EVAP PURGE SYSTEM PERFORMANCE
WHEN MONITORED
Cold start test. Engine Running. Small leak test passed.
SET CONDITION
The PCM activates the EVAP Purge solenoid gradually increases to maximum flow. During flow, the PCM looks for the NVLD switch to close. If the PCM does not see the NVLD switch close at maximom flow an errow is detected. Two Trip Fault.
POSSIBLE CAUSES
†Good Trip Equal to Zero
†NVLD Switch Operation
†Vehicle History and Service Bulletin Investigation
†Checking EVAP Purge Solenoid Functionality
†EVAP Purge Vacuum Supply
†Verify NVLD Operation
562
SYMPTOM
P0562-BATTERY VOLTAGE LOW
WHEN MONITORED
The engine running. The engine speed greater than 1150 RPM.
SET CONDITION
The battery sensed voltage is 1 volt below the charging goal for 13.47 seconds. The PCM senses the battery voltage turns off the field driver and senses the battery voltage again. If the voltages are the same, the code is set. One trip Fault.
POSSIBLE CAUSES
†Good trip equal to zero
†B+ circuit high resistance
†Generator ground high resistance
†Generator operation
†(Z1) generator field ground circuit open
†(K20) gen field control circuit shorted to ground
†(K20) gen field control circuit open
622SYMPTOM
P0622-GENERATOR FIELD CONTROL CIRCUIT
WHEN MONITORED
With the ignition on. Engine running.
SET CONDITION
When the PCM tries to regulate the generator field with no result during monitoring. One Trip Fault.
POSSIBLE CAUSES
†Good trip equal to zero
†Generator operation
†(Z1) gen field ground circuit open
†(K20) gen field control circuit shorted to battery voltage
†(K20) gen field control circuit shorted to ground
†(K20) gen field control circuit open
†PCM
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Friday, February 1st, 2013 AT 11:39 PM