Switch/Timer Power Diagnostic Code - Proheat M80 Service Manual

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3-36
3.1.14

SWITCH/TIMER POWER Diagnostic Code

Indicates a short circuit fault in harness or the device being operated by the
Switch Output.
Troubleshoot the Switch/Timer Power diagnostic code based on:
Electrical switch circuit in the switch wiring.
Test procedure electrical, short circuit:
a) Remove the Switch Output harness at the PCM.
b) Remote start the PROHEAT using the PROHEAT remote start switch
(PROHEAT P/N PK0091).
If the PROHEAT functions correctly, the fault is in the wiring from the
PROHEAT back to the switch. See OEM recommended service
requirements.
If the PROHEAT does not function, the PCM is faulty.
replacement, page 3-39.
Go to PCM
PROHEAT M-SERIES SERVICE MANUAL