Operation CHARM: Car repair manuals for everyone.
Manuals through 2025 now available!

Our trusted friends have launched a new website named LEMON, which has newer manuals. It also contains all the CHARM manuals.

LEMON is the spiritual successor to CHARM, I recommend you try it!

Link: lemon-manuals.la or lemon-manuals.org.ua

(Some people have issue connecting. LEMON is investigating. For now, use Firefox or change your DNS server)

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A/T Control Unit Power Source (DTC 128)

Consult-A/T Control Unit Pwr. Source:




DTC DETECTING CONDITION (CUPS)
1. Start engine.
2. Select "SELF-DIAG RESULTS" mode with CONSULT.
3. Drive vehicle under the following conditions: Shift lever in D, vehicle speed higher than 10 km/h (6 MPH), throttle opening greater than 1/8 of the full open position, engine speed higher than 450 rpm and driving for more than 10 minutes.

NOTE: This is the same Diagnostic Trouble Code as " Fluid Temperature Sensor".

A/T Control Unit Pwr. Source-Trouble Judgement Conditions:




TROUBLE JUDGEMENT CONDITIONS