Specifications

F164
ON-BOARD DIAGNOSTIC
End Of Sie
DTC P1562
A6E397001083W02
7 INSPECT POOR CONNECTION OF PCM
CONNECTOR
• Disconnect PCM connector.
• Inspect for poor connection (damaged, pulled-
out terminals, corrosion, etc.).
• Are there any malfunctions?
Yes Repair terminals, then go to Step 11.
No Go to next step.
8 INSPECT CONTROL CIRCUIT FOR SHORT TO
GROUND
• Disconnect battery cables.
• Inspect continuity between VAD solenoid valve
terminal B and body ground.
• Is there continuity?
Yes Repair or replace harness for short to ground, then go to
Step 11.
No Go to next Step.
9 INSPECT VAD SOLENOID VALVE CONTROL
CIRCUIT FOR SHORT TO POWER
• Measure voltage between brake switch
connector terminal B and body ground.
• Is voltage B+?
Yes Repair or replace harness for short to power, then go to
Step 11.
No Go to next step.
10 INSPECT CONTROL CIRCUIT FOR OPEN
CIRCUIT
• Inspect continuity between VAD solenoid valve
terminal B and PCM terminal 4C.
• Is there any continuity?
Yes Go to next step.
No Repair or replace harness for open, then go to next step.
11 VERIFY TROUBLESHOOTING OF DTC P1410
COMPLETED
• Make sure to reconnect all disconnected
connectors.
• Clear DTC from PCM memory using WDS or
equivalent.
• Perform KOEO/KOER self-test.
(See F66 KOEO/KOER SELF-TEST.)
• Is same DTC present?
Yes Replace PCM, then go to next step.
(See F43 PCM REMOVAL/INSTALLATION.)
No Go to next step.
12 VERIFY AFTER REPAIR PROCEDURE
• Perform After Repair Procedure.
(See F66 AFTER REPAIR PROCEDURE.)
• Is there any DTC present?
Yes Go to applicable DTC troubleshooting.
(See F67 DTC TABLE.)
No Troubleshooting completed.
STEP INSPECTION ACTION
DTC P1562 PCM +BB (back-up battery) voltage low
DETECTION
CONDITION
• PCM monitors voltage of back-up battery positive at PCM terminal 2Z. If PCM detects battery positive
terminal voltage below 2.5V for 2 s, PCM determines that backup voltage circuit has malfunction.
Diagnostic support note
• This is a continuous monitor (CCM).
• MIL illuminates if PCM detects the above malfunction condition during first drive cycle.
• PENDING CODE is available if PCM detects the above malfunction condition.
• FREEZE FRAME DATA is available.
• DTC is stored in the PCM memory.
POSSIBLE
CAUSE
• Melt down EEC fuse.
• Open circuit in wiring between EEC fuse and PCM terminal 2Z
• Short to ground between EEC fuse and PCM terminal 2Z
• Poor connection of PCM connector.
• PCM malfunction