P1512
Read the instructions below then
start the fault diagnostic procedure.
Symptom: None.
Starter Voltage (+50) input constant high.
Fault symptoms
On-Board Diagnostics
Type of diagnosis:
Enable criteria:
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Engine speed greater than 600 rpm.
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Fault criteria:
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The voltage is greater than 80% of the battery voltage on control module pin 42 for 67 s after the engine has been started. (Battery voltage x 0.8 = fault criterion.)
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Dependents:
System reaction to a fault:
OK report:
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There is no voltage on control module pin 42 for 67 s when the engine has started.
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Fault handling:
(See section
Fault handling III, other emissions-related components and functions
for more information)
Diagnostic help
Fault diagnosis concerns an electrical fault between the ignition switch and control module pin 42.
Checking the wiring
Jiggle the wiring harness at several points and in different directions to detect intermittent breaks and short circuits. Observe the multimeter, diagnostic tool or test lamp during the check.
