P1607 PCM internal Circuit Failure
P1607 PCM internal Circuit Failure
12-21-2006, 10:25 PM
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Join Date: Feb 2006
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ftom the service manual:
p1607 ECM Internal Circut Malfunction .......note it's ECM
1.Reset the ECM (I presume ECU)
2. Turn ignition on
3. wait 30 seconds
Still get the failure?
Y - substitute with known good ECM
N - Go to Step 4
4 Ignition off
5 Ignition on
6 wait 10 seconds
Same failure
Y - replace with known good ECM and retest
N - Intermittent failure
Ask customer if battery went dead
HTH
p1607 ECM Internal Circut Malfunction .......note it's ECM
1.Reset the ECM (I presume ECU)
2. Turn ignition on
3. wait 30 seconds
Still get the failure?
Y - substitute with known good ECM
N - Go to Step 4
4 Ignition off
5 Ignition on
6 wait 10 seconds
Same failure
Y - replace with known good ECM and retest
N - Intermittent failure
Ask customer if battery went dead
HTH
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