P1670
Read the instructions below then
start the fault diagnostic procedure.
Symptom: CHECK ENGINE goes on after two driving cycles.
Throttle control may go onto limp-home mode, whereby P1251, P1260 or P1263 may be generated as a secondary fault.
Throttle Limphome Relay Coil Circuit. Open / Short to Ground.
Fault symptoms
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CHECK ENGINE goes on after two driving cycles.
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Throttle control may go onto limp-home mode, whereby P1251, P1260 or P1263 may be generated as a secondary fault.
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Conditions
The following conditions apply for this DTC:
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Engine running and main relay voltage exceeding 10 V.
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Output voltage below 2 V when output is inactive.
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Condition fulfilled for 1 sec.
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Diagnostic help
Fault diagnosis concerns electrical fault in connecting leads or in the relay.
See also the description of activations,
, for more information.
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.