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)

Or, hide this message: temporarily or permanently

B2503

Circuit Description
When the transaxle is in "Park" the PZM drives the Park Relay Output "low," enabling the Brake Transaxle Shift Interlock (BTSI). The PZM monitors this output and determines the Actual voltage every 1000ms.

DTC Will Set When:
The Park Relay Output is active and the PZM determines the output is "high" for two consecutive monitoring cycles.

DTC Will Clear When:
The Park Relay Output is active and the PZM determines the output is "low" for two consecutive monitoring cycles.

Troubleshooting Hints
Check CKT 434 (ORN/BLK) for a short to voltage.